Functional Optoelectronic Nanomaterials

Prof. Dr. Gerasimos Konstantatos

Activities:

We employ advances in nanoscience and we transform them into nanotechnology in solving real-world problems that current technology cannot address or do so at an affordable cost for the benefit of the society. We are doing so by assembling a group of physicists, chemists and engineers to tackle complex, interdisciplinary problems. We focus on novel functional nanomaterials, nanostructures and devices for optoelectronics and renewable energy applications.

Our main scope is on the development of low-cost, high-efficiency solar cells employing nanostructured materials of low toxicity and high abundance to address the TW challenge. We also exploit optical phenomena that emerge in the nanoscale to break long-standing trade-offs in solar cells and photodetectors. We study optoelectronically active plasmonic structures that may allow for ultra-thin low cost solar cells and ultra-sensitive photodetectors.

Publication Highlights
• High-efficiency colloidal quantum dot infrared light-emitting diodes via engineering at the supra-nanocrystalline level
  S. Pradhan, F. Di Stasio, Y. Bi, S. Gupta, S. Christodoulou, A. Stavrinadis, G. Konstantatos
  Nature Nanotechnol. 14, 72-79 (2019)
• Broadband image sensor array based on graphene–CMOS integration
  S. Goossens, G. Navickaite, C. Monasterio, S. Gupta, J. J. Piqueras, R. Pérez, G. Burwell, I. Nikitskiy, T. Lasanta, T. Galán, E. Puma, A. Centeno, A. Pesquera, A. Zurutuza, G. Konstantatos, F. Koppens
  Nature Photon. 11, 366-371 (2017) )
• Solution-processed solar cells based on environmentally friendly AgBiS2 nanocrystals
  M. Bernechea, N. Cates Miller, G. Xercavins, D. So, A. Stavrinadis, G. Konstantatos
  Nature Photon. 10, 521-525 (2016)
• The role of surface passivation for efficient and photostable PbS quantum dot solar cells
  Y. Cao, A. Stavrinadis, T. Lasanta, D. So, G. Konstantatos
  Nature Energ. 1, 16035 (2016)
• Solution-processed inorganic bulk nano-heterojunctions and their application to solar cells
  A. K. Rath, M. Bernechea, L. Martinez, F. P. Garcia de Arquer, J. Osmond, G. Konstantatos
  Nature Photon. 6, 529-534 (2012)
• Hybrid graphene–quantum dot phototransistors with ultrahigh gain
  G. Konstantatos, M. Badioli, L. Gaudreau, J. Osmond, M. Bernechea, F. P. Garcia de Arquer, F. Gatti, F. H. L. Koppens
  Nature Nanotechnol. 7, 363-368 (2012)

Position(s) Available:
• Post-doctoral positions on Colloidal Quantum Dot Infrared Light Emission and Lasing
• Post-doctoral positions on Intraband Colloidal Quantum Dot Optoelectronics for MWIR/LWIR Photodetection and Light Emission
• Post-doctoral position on Environmentally Friendly Solution Processed Nanocrystal Solar Cells

Available Resources:
• 4 fumehoods with 5 Schlenk lines
• 1 glovebox with integrated spincoater
• 1 dry box

Available Resources:
• 2 fumehoods with spincoaters
• 1 glovebox with integrated spincoater
• 1 Thermal evaporator
• 1 Atomic Layer Deposition System
• 2 Rapid thermal Annealing systems (RTP)

Available Resources:
• 1 UV/VIS/NIR spectrophotometer
• 1 FTIR with microscope
• 1 Fluorescence Spectroscopy system (Steady-state and transient PL (TCSPC)) from 300 nm – 1700 nm.
• 1 X-ray Diffractometer (XRD)

Available Resources:
• Solar cell Characterization Suite: Class 3A solar simulator, TPV/TPC technique, EQE measurement
• Light Emission characterization: compact probe-station for L-I-V characterization, high-resolution spectrometer (600 – 1700 nm)
• ASE/Lasing characterization setup (inc. various pump laser sources (fs, ps, ns)
• Photodetector characterization Suite: 1 ambient probe station, 1 vacuum probestation (80K-350K), 2 semiconductor parameter analyzers with fA resolution, 1 supercontinuum laser source, 1 quantum cascade laser source, MWIR/LWIR monochromator for EQE measurements, 1 Step-scan FTIR system, several diode-laser sources, oscilloscope etc.

Available Resources: Grants
• ERC CoG 2016 – HEINSOL
• Graphene Flagship – WP Optoelectronics (Core 1,2,3)
• Plan Nacional – Mineco

Research Topics:
• Renewable Energies
• Light Emission
• Photodetection

Collaborations:

Links:
• Graphene @ ICFO

Contact: This email address is being protected from spambots. You need JavaScript enabled to view it.

Functional Optoelectronic Nanomaterials

Prof. Dr. Gerasimos Konstantatos

Group Leader
• Prof. Dr. Gerasimos Konstantatos

Postdoctoral Researchers
• Dr. Ignasi Burgués
• Dr. Mariona Dalmases
• Dr. Alberto Figueroba
• Dr. Biswajit Kundu
• Dr. Santanu Pradhan
• Dr. Avijit Saha
• Dr. Zhuoran Wang
• Dr. Guy Whitworth
• Dr. Huimin Zhu

PhD Students
• Mehmet Zafer Akgul
• Gaurav Kumar
• Shanti Maria Liga
• Onur Özdemir
• Nima Taghipour
• Stephy Vincent
• Yongjie Wang

Former Group Members
• Fiona Jean Beck, Postdoctoral researcher
• María Bernechea, Research fellow
• Yu Bi, Postdoctoral researcher
• Yiming Cao, Postdoctoral researcher
• Sotirios Christodoulou, Postdoctoral researcher
• Francesco Di Stasio, Research fellow
• Silke Luzia Diedenhofen, Postdoctoral researcher
• Francisco Pelayo García, PhD student
• Schuchi Gupta, Research engineer
• Nengjie Huo, Postdoctoral researcher
• Dominik Kufer, PhD student
• Tania Lasanta, Research engineer
• Helmut Mäckel, Research fellow
• Beatriz Martín, Visiting scientist
• Luis Martínez, PhD student
• Gabriel Mercier, Research engineer
• Agustín Mihi, Research fellow
• Nichole Cates Miller, Postdoctoral researcher
• Nosipho Moloto, Visiting scientist
• Arup Kumar Rath, Postdoctoral researcher
• Iñigo Ramiro González, Postdoctoral researcher
• David Tan So, PhD student
• Alexandros Stavrinadis, Research fellow
• Óscar Vázquez, Postdoctoral researcher
• Jianjun Wang, Research engineer
• Guillem Xercavins, Research engineer
• Xiaojie Yang, Postdoctoral researcher
• Yujue Yang, Visiting scientist

Functional Optoelectronic Nanomaterials

Prof. Dr. Gerasimos Konstantatos

Regular Papers
• Solid-state thin-film broadband short-wave infrared light emitters S. Pradhan, M. Dalmases, G. Konstantatos Adv. Mater. 2020, 2003830 (2020)
• Single-exciton gain and stimulated emission across the infrared telecom band from robust heavily-doped PbS colloidal quantum dots S. Christodoulou, I. Ramiro, A. Othonos, A. Figueroba, M. Dalmases, O. Ozdemir, S. Pradhan, G. Itskos, G. Konstantatos Nano Lett. 20, 5909–5915 (2020)
• Highly efficient, bright, and stable colloidal quantum dot short-wave infrared light?emitting diodes S. Pradhan, M. Dalmases, A. Baspinar, G. Konstantatos Adv. Funct. Mater. [Online DOI: 10.1002/adfm.202004445] (2020)
• Colloidal AgBiS₂ nanocrystals with reduced recombination yield 6.4% power conversion efficiency in solution-processed solar cells I. Burgués-Ceballos, Y. Wang, M. Z. Akgul, G. Konstantatos Nano Energy [Online DOI: 10.1016/j.nanoen.2020.104961] (2020)
• Size and temperature dependent intraband optical properties of heavily n-doped PbS colloidal quantum dot solid-state films I. Ramiro, B. Kundu, M. Dalmases, O. Ozdemir, M. Pedrosa, G. Konstantatos ACS Nano [Online DOI: 10.1021/acsnano.0c02033] (2020)
• On-demand activation of photochromic nanoheaters for high color purity 3D printing A. W. Powell, A. Stavrinadis, S. Christodoulou, R. Quidant, G. Konstantatos Nano Lett. 20, 3485-3491 (2020)
• Low-cost RoHS compliant solution processed photovoltaics enabled by ambient condition synthesis of AgBiS₂ nanocrystals M. Z. Akgul, A. Figueroba, S. Pradhan, Y. Bi, G. Konstantatos ACS Photonics 7, 588-595 (2020)
• Cation disorder and local structural distortions in Ag_xBi_1–xS₂ nanoparticles J. Kopula Kesavan, F. d’Acapito, P. Scardi, A. Stavrinadis, M. Z. Akgul, I. Burgués-Ceballos, G. Konstantatos, F. Boscherini Nanomaterials 10, 316 (2020)
• Ag₂ZnSnS₄ nanocrystals expand the availability of RoHS compliant colloidal quantum dots A. Saha, A. Figueroba, G. Konstantatos Chem. Mater. 32, 2148-2155 (2020)
• Mid- and long-wave infrared optoelectronics via intraband transitions in PbS colloidal quantum dots I. Ramiro, O. Özdemir, S. Christodoulou, S. Gupta, M. Dalmases, I. Torre, G. Konstantatos Nano Lett. 20, 1003-1008 (2020)
• Room-temperature direct synthesis of semi-conductive PbS nanocrystal inks for optoelectronic applications Y. Wang, Z. Liu, N. Huo, F. Li, M. Gu, X. Ling, Y. Zhang, K. Lu, L. Han, H. Fang, A. G. Shulga, Y. Xue, S. Zhou, F. Yang, X. Tang, J. Zheng, M.Antonietta Loi, G.Konstantatos, W. Ma Nature Commun. 10, 5136 (2019)
• High sensitivity hybrid PbS CQD-TMDC photodetectors up to 2 μm O. Özdemir, I. Ramiro, S. Gupta, G. Konstantatos ACS Photonics 6, 2381-2386 (2019)
• Flexible graphene photodetectors for wearable fitness monitoring E. O. Polat, G. Mercier, I. Nikitskiy, E. Puma, T. Galan, S. Gupta, M. Montagut, J. J. Piqueras, M. Bouwens, T. Durduran, G. Konstantatos, S. Goossens, F. Koppens Sci. Adv. 5, eaaw7846 (2019)
• Origin of the below-bandgap turn-on voltage in light-emitting diodes and the high V_OC in solar cells comprising colloidal quantum dots with S. Pradhan, M. Dalmases, G. Konstantatos J. Phys. Chem. Lett. 10, 3029-3034 (2019)
• Engineering vacancies in Bi₂S₃ yielding sub-bandgap photoresponse and highly sensitive short-wave infrared photodetectors N. Huo, A. Figueroba, Y. Yang, S. Christodoulou, A. Stavrinadis, C. Magén, G. Konstantatos Adv. Opt. Mater. 7, 1900258 (2019)
• High-efficiency colloidal quantum dot infrared light-emitting diodes via engineering at the supra-nanocrystalline level S. Pradhan, F. Di Stasio, Y. Bi, S. Gupta, S. Christodoulou, A. Stavrinadis, G. Konstantatos Nature Nanotechnol. 14, 72-79 (2019)
• Current status and technological prospect of photodetectors based on two-dimensional materials G. Konstantatos Nature Commun. 9, 5266 (2018)
• High-efficiency light-emitting diodes based on formamidinium lead bromide nanocrystals and solution processed transport layers F. Di Stasio, I. Ramiro, Y. Bi, S. Christodoulou, A. Stavrinadis, G. Konstantatos Chem. Mater. 30, 6231-6235 (2018)
• Reduction of moisture sensitivity of PbS quantum dot solar cells by incorporation of reduced graphene oxide B. Martín-García, Y. Bi, M. Prato, D. Spirito, R. Krahne, G. Konstantatos, I. Moreels Sol. Energy Mat. Sol. Cells 183, 1-7 (2018)
• Recent progress and future prospects of 2D-based photodetectors N. Huo, G. Konstantatos Adv. Mater. 30, 1801164 (2018)
• High carrier mobility in monolayer CVD-grown MoS2 through phonon suppression N. Huo, Y. Yang, Y. Wu, X. Zhang, S. T. Pantelides, G. Konstantatos Nanoscale 10, 15071-15077 (2018)
• White and brightly colored 3D printing based on resonant photothermal sensitizers A. W. Powell, A. Stavrinadis, I. de Miguel, G. Konstantatos, R. Quidant Nano Lett. 18, 6660-6664 (2018) Cover Page
• Colloidal quantum dot tandem solar cells using chemical vapor deposited graphene as an atomically thin intermediate recombination layer Y. Bi, S. Pradhan, M. Z. Akgul, S. Gupta, A. Stavrinadis, J. Wang, G. Konstantatos ACS Energy Lett. 3, 1753-1759 (2018)
• High open circuit voltage solar cells based on bright mixed-halide CsPbBrI₂ Perovskite nanocrystals synthesized in ambient air conditions S. Christodoulou, F. Di Stasio, S. Pradhan, A. Stavrinadis, G. Konstantatos J. Phys. Chem. C 122, 7621-7626 (2018)
• Infrared solution-processed quantum dot solar cells reaching external quantum efficiency of 80% at 1.35 µm and J_sc in excess of 34 mA cm^-2 Y. Bi, S. Pradhan, S. Gupta, M. Z. Akgul, A. Stavrinadis, G. Konstantatos Adv. Mater. 30, 1704928 (2018)
• Matildite contact with media: First-principles study of AgBiS2 surfaces and nanoparticle morphology F. Viñes, G. Konstantatos, F. Illas J. Phys. Chem. B 122, 521-526 (2018)
• Low-temperature colloidal synthesis of CuBiS2 nanocrystals for optoelectronic devices J. Wang, M. Z. Akgul, Y. Bi, S. Christodoulou, G. Konstantatos J. Mater. Chem. A 5, 24621-24625 (2017)
• Bandgap engineering by cationic disorder: case study on AgBiS₂ F. Viñes, G. Konstantatos, F. Illas Phys. Chem. Chem. Phys. 19, 27940-27944 (2017)
• Ultrasensitive all-2D MoS₂ phototransistors enabled by an out-of-plane MoS₂ PN homojunction N. Huo, G. Konstantatos Nature Commun. 8, 572 (2017)
• Near-unity photoluminescence quantum yield in CsPbBr3 nanocrystal solid-state films via post-synthesis treatment with lead bromide F. Di Stasio, S. Christodoulou, N. Huo, G. Konstantatos Chem. Mater. 29, 7663-7667 (2017)
• Reducing interface recombination through mixed nanocrystal interlayers in PbS quantum dot solar cells S. Pradhan, A. Stavrinadis, S. Gupta, G. Konstantatos ACS Appl. Mater. Interfaces 9, 27390-27395 (2017)
• Broadband image sensor array based on graphene–CMOS integration S. Goossens, G. Navickaite, C. Monasterio, S. Gupta, J. J. Piqueras, R. Pérez, G. Burwell, I. Nikitskiy, T. Lasanta, T. Galán, E. Puma, A. Centeno, A. Pesquera, A. Zurutuza, G. Konstantatos, F. Koppens Nature Photon. 11, 366-371 (2017)
• Breaking the open-circuit voltage deficit floor in PbS quantum dot solar cells through synergistic ligand and architecture engineering S. Pradhan, A. Stavrinadis, S. Gupta, S. Christodoulou, G. Konstantatos ACS Energy Lett. 2, 1444-1449 (2017)
• Trap-state suppression and improved charge transport in PbS quantum dot solar cells with synergistic mixed-ligand treatments S. Pradhan, A. Stavrinadis, S. Gupta, Y. Bi, F. Di Stasio, G. Konstantatos Small 13, 1700598 (2017)
• MoS₂–HgTe quantum dot hybrid photodetectors beyond 2 µm N. Huo, S. Gupta, G. Konstantatos Adv. Mater. 29, 1606576 (2017)
• Suppressing deep traps in PbS colloidal quantum dots via facile iodide substitutional doping for solar cells with efficiency >10 A. Stavrinadis, S. Pradhan, P. Papagiorgis, G. Itskos, G. Konstantatos ACS Energy Lett. 2, 739-744 (2017)
• Ultrahigh carrier mobility achieved in photoresponsive hybrid perovskite films via coupling with single-walled carbon nanotubes F. Li, H. Wang, D. Kufer, L. Liang, W. Yu, E. Alarousu, C. Ma, Y. Li, Z. Liu, C. Liu, N. Wei, F. Wang, L. Chen, O. F. Mohammed, A. Fratalocchi, X. Liu, G. Konstantatos, T. Wu Adv. Mater. 29, 1602432 (2017)
• Matildite versus schapbachite: First-principles investigation of the origin of photoactivity in AgBiS₂ F. Viñes, M. Bernechea, G. Konstantatos, F. Illas Phys. Rev. B 94, 235203 (2016)
• Photo-FETs: phototransistors enabled by 2D and 0D nanomaterials D. Kufer, G. Konstantatos ACS Photonics 3, 2197-2210 (2016)
• Solid-state colloidal CuInS2 quantum dot solar cells enabled by bulk heterojunctions D. So, S. Pradhan, G. Konstantatos Nanoscale 8, 16776 (2016)
• Low-temperature, solution-based sulfurization and necking of PbS CQD films A. Stavrinadis, D. So,. G. Konstantatos J. Phys. Chem. C 120, 20315-20322 (2016)
• Aliovalent doping in colloidal quantum dots and its manifestation on their optical properties: surface attachment versus structural incorporation A.Stavrinadis, J. S. P. Cresi, F. D\'Acapito, C. Magen, F. Boscherini, G. Konstantatos Chem. Mater. 28, 5384-5393 (2016)
• Solution-processed solar cells based on environmentally friendly AgBiS2 nanocrystals M. Bernechea, N. Cates Miller, G. Xercavins, D. So, A. Stavrinadis, G. Konstantatos Nature Photon. 10, 521-525 (2016)
• Integrating an electrically active colloidal quantum dot photodiode with a graphene phototransistor I. Nikitskiy, S. Goossens, D. Kufer, T. Lasanta, G. Navickaite, F. H. L. Koppens, G. Konstantatos Nature Commun. 7, 11954 (2016)
• Interface engineering in hybrid quantum dot – 2D phototransistors D. Kufer, T. Lasanta, M. Bernechea, F. H. L. Koppens, G. Konstantatos ACS Photonics 3, 1324-1330 (2016)
• The role of surface passivation for efficient and photostable PbS quantum dot solar cells Y. Cao, A. Stavrinadis, T. Lasanta, D. So, G. Konstantatos Nature Energ. 1, 16035 (2016)
• Understanding light trapping by resonant coupling to guided modes and the importance of the mode profile F. J. Beck, A. Stavrinadis, T. Lasanta, J.-P. Szczepanick, G. Konstantatos Opt. Express 24, 759-772 (2016)
• The influence of doping on the optoelectronic properties of PbS colloidal quantum dot solids P. Papagiorgis, A. Stavrinadis, A. Othonos, G. Konstantatos, G. Itskos Sci. Rep. 5, 18735 (2016)
• Strategies for controlled electronic doping of colloidal quantum dot solids A. Stavrinadis, G. Konstantatos ChemPhysChem 17, 632 (2015)
• Thiol-free synthesized copper indium sulfide nanocrystals as optoelectronic quantum dot solids D. So, G. Konstantatos Chem. Mater. 27, 8424-8432 (2015)
• Highly sensitive, encapsulated MoS2 photodetector with gate controllable gain and speed D. Kufer, G. Konstantatos Nano Lett. 15, 7307-7313 (2015)
• Size and bandgap tunability in Bi₂S₃ colloidal nanocrystals and its effect in solution processed solar cells M. Bernechea, Y. Cao, G. Konstantatos J. Mater. Chem. A 3, 20642-20648 (2015)
• A highly sensitive pyroresistive all-organic infrared bolometer R. Pfattner, V. Lebedev, E. Laukhina, S. Chaitanya Kumar, A. Esteban-Martin, V. Ramaiah-Badarla, M. Ebrahim-Zadeh, F. P. García de Arquer, G. Konstantatos, V. Laukhin, C. Rovira, J. Veciana Adv. Electron. Mater. 1, 201500090 (2015)
• Large-area plasmonic-crystal hot-electron based photodetectors F. P. Garcia de Arquer, A. Mihi, G. Konstantatos ACS Photonics 2, 950-957(2015)
• Metal-insulator-semiconductor heterostructures for plasmonic hot-carrier optoelectronics F. P. García de Arquer, G. Konstantatos Opt. Express 23, 14715-14723 (2015)
• Solution processed bismuth sulfide nanowire array core/silver sulfide shell solar cells Y. Cao, M. Bernechea, A. Maclachlan, V. Zardetto, M. Creatore, S. A. Haque, G. Konstantatos Chem. Mater. 27, 3700–3706 (2015)
• Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems A. C. Ferrari et al. Nanoscale 7, 4587-5062 (2015)
• Tailoring the electronic properties of colloidal quantum dots in metal–semiconductor nanocomposites for high performance photodetectors F. P. García de Arquer, T. Lasanta, M. Bernechea, G. Konstantatos Small 11, 2636-2641 (2015)
• Prospects of nanoscience with nanocrystals M. V. Kovalenko , L. Manna, A. Cabot, Z. Hens, D. V. Talapin, C. R. Kagan, V. I. Klimov, A. L. Rogach, P. Reiss,
  D. J. Milliron, P. Guyot-Sionnnest, G. Konstantatos, W. J. Parak, T. Hyeon, B. A. Korgel, C. B. Murray, W. Heiss ACS Nano 9, 1012-1057 (2015)
• Integrated colloidal quantum dot photodetectors with color-tunable plasmonic nanofocusing lenses S. L. Diedenhofen, D. Kufer, T. Lasanta, G. Konstantatos Light-Sci. Appl. 4, e234 (2015)
• Molecular interfaces for plasmonic hot electron photovoltaics F. P. García de Arquer, A. Mihi, G. Konstantatos Nanoscale 7, 2281-2288 (2015)
• Hybrid 2D–0D MoS2–PbS quantum dot photodetectors D. Kufer, I. Nikitskiy, T. Lasanta, G. Navickaite, F. H. L. Koppens, G. Konstantatos Adv. Mater. 27, 176–180 (2015)
• Surface plasmon polariton couplers for light trapping in thin-film absorbers and their application to colloidal quantum dot optoelectronics F. J. Beck, A. Stavrinadis, S. L. Diedenhofen, T. Lasanta, G Konstantatos ACS Photonics 1, 1197–1205 (2014)
• Improved electronic coupling in hybrid organic-inorganic nanocomposites employing thiol-functionalized P3HT and non-toxic bismuth sulfide nanocrystals L. Martinez, S. Higuchi, A. Maclachlan, A. Stavrinadis, N. C. Miller, S. L. Diedenhofen, M. Bernechea, S. Sweetnam,
  J. Nelson, S. A. Haque, K. Tajima, G. Konstantatos Nanoscale 6, 10018-10026 (2014)
• Remote trap passivation in colloidal quantum dot bulk nano-heterojunctions and its effect in solution-processed solar cells A. K. Rath, F. P. Garcia de Arquer, A. Stavrinadis, T. Lasanta, M. Bernechea, S. L. Diedenhofen, G. Konstantatos Adv. Mater. 26, 4741-4747 (2014)
• Plasmonic schottky nanojunctions for tailoring the photogeneration profile in thin film solar cells F. J. Beck, T. Lasanta, G. Konstantatos Adv. Opt. Mater. 2, 493-500 (2014)
• Determination of carrier lifetime and mobility in colloidal quantum dot films via impedance spectroscopy A. K. Rath, T. Lasanta, M. Bernechea, S. L. Diedenhofen, G. Konstantatos Appl. Phys. Lett. 104, 063504 (2014)
• Imprinted electrodes for enhanced light trapping in solution processed solar cells A. Mihi, F. J. Beck, T. Lasanta, A. K. Rath, G. Konstantatos Adv. Mater. 26, 443-448 (2014)
• Heterovalent cation substitutional doping for quantum dot homojunction solar cells A. Stavrinadis, A. K. Rath, F. P. García de Arquer, S. L. Diedenhofen, C. Magén, L. Martinez, D. So, G. Konstantatos Nature Commun. 4, 2981 (2013)
• Photoelectric energy conversion of plasmon-generated hot carriers
  in metal-
  insulator-semiconductor structures F. P. García de Arquer, A. Mihi, D. Kufer, G. Konstantatos ACS Nano 7, 3581-3588 (2013)
• Hybrid solution-processed bulk heterojunction solar cells based on bismuth sulfide nanocrystals L. Martinez, A. Stavrinadis, S. Higuchi, S. L. Diedenhofen, M. Bernechea, K. Tajima, G. Konstantatos Phys. Chem. Chem. Phys. 15, 5482-5487 (2013)
• Coupling resonant modes of embedded dielectric microspheres in solution-processed solar cells A. Mihi, M. Bernechea, D. Kufer, G. Konstantatos Adv. Opt. Mater. 1, 139-143 (2013) Back Cover Page
• Size- and temperature-dependent carrier dynamics in oleic acid capped PbS quantum dots P. Andreakou, M. Brossard, C. Li, M. Bernechea, G. Konstantatos, P. G. Lagoudakis J. Phys. Chem. C 117, 1887-1892 (2013)
• Electrical effects of metal nanoparticles embedded in ultra-thin colloidal quantum dot films F. J. Beck, F. P. Garcia de Arquer, M. Bernechea, G. Konstantatos Appl. Phys. Lett. 101, 041103 (2012)
• Solution-processed inorganic bulk nano-heterojunctions and their application to solar cells A. K. Rath, M. Bernechea, L. Martinez, F. P. Garcia de Arquer, J. Osmond, G. Konstantatos Nature Photon. 6, 529-534 (2012)
• Hybrid graphene–quantum dot phototransistors with ultrahigh gain G. Konstantatos, M. Badioli, L. Gaudreau, J. Osmond, M. Bernechea,
  F. P. Garcia de Arquer, F. Gatti, F. H. L. Koppens Nature Nanotechnol. 7, 363-368 (2012)
• Plasmonic light trapping leads to responsivity increase in colloidal quantum dot photodetectors F. Pelayo García de Arquer, F. J. Beck, M. Bernechea, G. Konstantatos Appl. Phys. Lett. 100, 043101 (2012)
• Near IR-sensitive, non-toxic, polymer/nanocrystal solar cells employing bismuth sulfide as the electron acceptor L. Martinez, M. Bernechea, F. P. García de Arquer, G. Konstantatos Adv. Energ. Mater. 23, 1029-1035 (2011)
• Absorption enhancement in solution processed metal-semiconductor nanocomposites F. P. García de Arquer, F. J. Beck, G. Konstantatos Opt. Express 19, 21038-21049 (2011)
• Solution-processed heterojunction solar cells based on p-type PbS quantum dots and n-type bismuth sulfide nanocrystals A. K. Rath, M. Bernechea, L. Martinez, G. Konstantatos Adv. Mater. 23, 3712-3717 (2011)
• Colloidal quantum dot photodetectors G. Konstantatos, E. H. Sargent Infrared Phys. Techn. 54, 278-282 (2010)
• Advances in colloidal quantum dot solar cells: The depleted-heterojunction device I. J. Kramer, A. G. Pattantyus-Abraham, A. R. Barkhouse, X. Wang, G. Konstantatos, R. Debnath, L. Levina, I. Raabe, Md. K. Nazeeruddin, M. Grätzel, E. H. Sargent Thin Solid Films 519, 7351-7355 (2010)
• Nanostructured materials for photon detection G. Konstantatos, E. H. Sargent Nature Nanotechnol. 5, 391–400 (2010)
• Depleted-heterojunction colloidal quantum dot solar cells A. G. Pattantyus-Abraham, I. J. Kramer, A. R. Barkhouse, X. Wang, G. Konstantatos, R. Debnath, L. Levina,
  I. Raabe, M. K. Nazeeruddin, M Grätzel, E. H. Sargent ACS Nano 4, 3374–3380 (2010)
• Solution-processed quantum dot photodetectors G. Konstantatos, E. H. Sargent Proc. IEEE 97, 1666-1683 (2009)

Books
• Colloidal quantum dot optoelectronics and photovoltaics G. Konstantatos, H. Sargent (eds.) Cambridge University Press (2013)

PhD Theses
• Photodetectors based on quantum dots and 2d materials I. Nikitskiy
• Copper indium sulfide colloidal quantum dot solar cells D. So
• Photodetectors based on Llow-dimensional materials and hybrid systems D. Kufer
• Plasmonic hot-carrier optoelectronics F. P. García de Arquer
• N-Type bismuth sulfide coloidal nanocrystals and their application to solution-processed photovoltaic devices L. Martinez

Functional Optoelectronic Nanomaterials

Prof. Dr. Gerasimos Konstantatos

• 2020-09-30 Colloidal quantum dot light emitters go broadband in the infrared A team of ICFO researchers develops a new class of broadband solid state light emitter in the short-wave infrared that could be miniaturized, integrated with CMOS technology and used for many applications including food inspection, health or safety.
• 2020-07-23 QURV becomes ICFO’s 8th Spin-off ICFO announces the launch of new spin-off that develops wide-spectrum image sensor technologies and integrated solutions to enable enhanced computer vision applications
• 2020-05-05 High color purity 3D printing ICFO researchers report on a new method to obtain high color purity 3D objects with the use of a new class of nanoparticles.
• 2020-01-16 Colloidal Quantum Dot Photodetectors can now see further than before An ICFO study published in Nanoletters reports on the development of a colloidal quantum dot photodetector capable of detecting light in the far infrared.
• 2019-09-13 New health monitors are flexible, transparent and graphene enabled ICFO researchers develop low-power wearable devices that can monitor multiple vital signs of humans.
• 2019-04-02 Defects enable RoHS-compliant, high-performance infrared photodetectors A study led by ICFO researchers reports on a highly sensitive CMOS compatible broadband photodetector by tailoring material defects.
• 2018-12-03 Colloidal Quantum Dots make LEDs shine bright in the Infrared ICFO researchers report on the development of a colloidal quantum-dot light emitting diode with unprecedented quantum and power conversion efficiencies in the infrared range.
• 2018-11-23 Kick-off meeting of the Quantum Flagship “2D·SIPC“ project ICFO hosts the kick-off meeting of the Quantum Flagship “2D·SIPC” project, aimed at developing quantum devices that can be easily integrated in existing current silicon-based technologies.
• 2018-10-09 UPC Thesis Awards 2018 The UPC recognizes two ICFO PhD graduates with the Extraordinary PhD Thesis Award
• 2018-05-07 Proof of Concept Grant ERC Funding to develop a hand-held hybrid graphene-quantum broadband spectrometer prototype.
• 2017-12-18 2016 ICFO PhD Thesis Awards 3 ICFO PhD graduates awarded for creative and ambitious research progress.
• 2017-10-02 2D material photodetectors get even more sensitive An ICFO study published in Nature Communications reports of the development of very sensitive all-2D photodetectors.
• 2017-05-29 Graphene and Quantum Dots put in motion a CMOS-integrated camera that can see the invisible ICFO develops the first graphene-based camera, capable of imaging visible and infrared light at the same time.
• 2017-03-07 Quantum Dots and 2D materials for SWIR/Mid IR hybrid detectors ICFO researchers develop an ultra-sensitive, broadband, low-cost hybrid MoS2 - HgTe QD-based photodetector.
• 2016-12-15 2 ERC Consolidator Grants for ICFO Group Leaders Professors Gerasimos Konstantatos and Frank Koppens granted ERC Consolidator Grants for young research leaders.
• 2016-10-19 Congratulations to New ICFO PhD graduate Dr. David So graduated with a thesis in ‘Copper Indium Sulfide Colloidal Quantum Dot Solar Cells’
• 2016-10-19 PhD Thesis Defense
  DAVID SO \'Copper Indium Sulfide Colloidal Quantum Dot Solar Cells\' DAVID SO
  Functional Optoelectronics Nanomaterials
  ICFO-The Institute of Photonic Sciences
• 2016-08-01 RETOS 2016 ICFO receives RETOS grant to team up with the company GRAPHENEA and carry out R+D+i industrial project.
• 2016-06-20 Solar Cells for Greener and Safer Energies ICFO researchers report on low-temperature, solution-processed, environmentally friendly inorganic solar cells made with Earth-abundant materials.
• 2016-06-17 New Hybrid Photodetectors with Quantum Dots and Graphene ICFO researchers develop a hybrid photodetector comprising an active colloidal quantum dot photodiode integrated with a graphene phototransistor
• 2016-06-13 Congratulations to New ICFO PhD graduate Dr. Dominik Kufer graduated with a thesis in ‘Photodetectors based on low-dimensional materials and hybrid’.
• 2016-06-13 PhD Thesis Defense
  DOMINIK KUFER \'Photodetectors Based on Low-dimensional Materials and Hybrid Systems\' DOMINIK KUFER
  Functional Optoelectronics Nanomaterials
  ICFO-The Institute of Photonic Sciences
• 2016-04-04 ICFO in Nature Energy Researchers unveil quantum dot surface engineering for high efficiency and photostable PbS QD solar cells.
• 2016-01-28 New Proof of Concept ERC funding for GRAPHEALTH: graphene wearable technology
• 2015-02-18 Congratulations to New ICFO PhD graduate Dr. Pelayo García de Arquer graduated with a thesis in \'Plasmonic Hot-Carrier Optoelectronics\'
• 2015-01-19 Optical Sensing: the smaller the better Plasmonic Focusing enables High-Sensitivity Quantum Dot Photodetectors
• 2014-10-31 Congratulations to New ICFO PhD graduate Dr. Luis Martinez graduated with a thesis in ‘N-Type Bismuth Sulfide Colloidal Nanocrystals and their Application to Solution-Processed Photovoltaic Devices’
• 2014-10-06 Graphene’s 10-year Roadmap ICFO participates in the summary of the state-of-the-art of the research on graphene and its anticipated applications.
• 2013-12-18 Novel Doping Scheme for Colloidal Quantum Dots Researchers at ICFO develop colloidal quantum dot homojunctions via cation substitutional doping.
• 2013-11-14 Colloidal Quantum Dot Optoelectronics and Photovoltaics Prof. Gerasimos Konstantatos co-edits a book published by Cambridge University Press.
• 2013-10-31 Nanophotonic devices Imprinted electrodes for enhanced light trapping in quantum dot solar cells in Advanced Materials.
• 2013-09-20 ERC Proof of Concept Frank Koppens and Gerasimos Konstantatos receive funding for ERC Proof-of-Concept study.
• 2013-05-14 Fresnel Prize 2013 Prof. Gerasimos Konstantatos awarded the Fresnel Prize from the European Physics Society.
• 2013-03-14 La Vanguardia publishes its top 10 scientific discoveries of the 21st century Graphene cited as one of the most influential discoveries of this century.
• 2013-01-29 Vanguard of Science Award Prof. Frank Koppens and Prof. Gerasimos Konstantatos candidates for a prize organized by La Vanguardia and Fundació Catalunya-La Pedrera to promote excellence in research.
• 2012-11-21 New European FET- ENERGY Project to be coordinated by ICFO NANOMATCELL project aims to develop next generation DSSCs.
• 2012-10-22 TR35 Spain 2012 Award ICFO Professor Gerasimos Konstantatos awarded the TR35 Spain Prize 2012
• 2012-07-03 ICFO in Nature Photonics Researchers led by Gerasimos Konstantatos present a novel architectural platform for inorganic solution-processed optoelectronics and solar cells.
• 2012-05-15 ICFO in The Economist New technology developed by the groups of Gerasimos Konstantatos and Frank Koppens receives enthusiastic support from prestigious international press.
• 2012-05-07 Hybrid Graphene-Quantum Dot Phototransistors with Ultrahigh Gain ICFO research groups report in Nature Nanotechnology on photodetection advances combining nanocrystals and graphene.
• 2011-03-21 ARCITEC PhD student Luis Martinez describes the development of solar energy at ICFO in a UPC blog on architecture, science and technology.
• 2010-02-05 New Network of Excellence ICFO hosts the kick-off meeting of Nanophotonics for Energy Efficiency.