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Regular Papers
Sub-bandgap photon-to-current conversion in bismuth vanadate photoanodes and its impact on the maximum photocurrent density achievable for water splitting
C. G. Ferreira, 
C. Ros, 
M. Zhang, 
G. Zhou, 
V. Gacha, 
D. Raptis, 
I. D. Sharp, 
J. Martorell
ACS Energy Lett. 10, 4332-4341 (2025)
FeNi nanoparticle-modified reduced graphene oxide as a durable electrocatalyst for oxygen evolution
I. Y. Khairani, 
B. Jin, 
S. M. Palardonio, 
U. Hagemann, 
B. Alonso, 
A. Ortega, 
C. Doñate-Buendía, 
J. Martorell, 
C. Ros, 
T. Kallio, 
B. Gökce
Journal of Catalysis 439, 115771 (2024)
Enhancing charge extraction in BiVO4 photoanodes by ZrCl4 treatment of SnO2 hole-blocking layers
V. Gacha, 
C. Ros, 
X. Garcia, 
J. Llorca, 
J. Martorell, 
D. Raptis
Appl. Mater. Today 40, 102415 (2024)
2D nanosheet SnS2 solution-processed photoanodes: Unveiling enhanced visible light absorption for solar fuels applications
Y. Sánchez, 
M. Guc, 
S. Martí-Sánchez, 
M. Jiménez-Guerra, 
S. Lugo-Loredo, 
J. Arbiol, 
A. Perez-Rodriguez, 
J. Martorell, 
C. Ros
Int. J. Hydrogen Energy 77, 193-202 (2024)
Harnessing the power of PM6:Y6 semitransparent photoanodes by computational balancement of photon absorption in photoanode/photovoltaic organic tandems: >7 mA cm−2 solar synthetic fuels production at bias-free potentials
F. Bernal‐Texca, 
E. Andrioti, 
J. Martorell, 
C. Ros
Energy Environ. Mater. 2024, e12809  (2024)
Multi-methodological analysis of hydrogen desorption from graphene
F. Delfino, 
C. Ros, 
S. M. Palardonio, 
N. M. Carretero, 
S. Murcia-López, 
J. R. Morante, 
J. Martorell, 
Z. G. Fthenakis, 
M. F. Sgroi, 
V. Tozzini, 
L. Bellucci
Carbon 227, 119211 (2024)
Nanoarchitectonics of lead-free 2d cobalt-based diammonium hybrid for perovskites solar cell applications
M. Abdulrhman, 
S. K. Abdel-Aal, 
C. A. Bain, 
D. Raptis, 
F. Bernal‐Texca, 
K. L. Wlodarczyk, 
D. P. Hand, 
J. Martorell, 
J. Marques-Hueso
Appl. Phys. A 130, 426 (2024)
Four-terminal tandem based on a PM6:L8-BO transparent solar cell and a 7 nm Ag layer intermediate electrode
F. Bernal‐Texca, 
J. Martorell
Solar RRL 8, (2024)
Understanding the internal conversion efficiency of BiVO4/SnO2 photoanodes for solar water splitting: an experimental and computational analysis
L. Geronimo, 
C. G. Ferreira, 
V. Gacha, 
D. Raptis, 
J. Martorell, 
C. Ros
ACS Appl. Energy Mater. 7, 1792-1801 (2024)
Four‐terminal tandem based on a PM6:l8‐BO transparent solar cell and a 7 nm Ag layer intermediate electrode
F. Bernal‐Texca, 
J. Martorell
Solar RRL 2300728 (2024)

Cover page.

Bias‐free solar‐to‐hydrogen conversion in a BiVO4/PM6:Y6 compact tandem with optically balanced light absorption
C. G. Ferreira, 
C. Sansierra, 
F. Bernal‐Texca, 
M. Zhang, 
C. Ros, 
J. Martorell
Energy Environ. Mater. 7, e12679 (2023)
Spatiotemporal mapping uncouples exciton diffusion from singlet–singlet annihilation in the electron acceptor y6
G. Lo Gerfo M., 
L. Bolzonello, 
F. Bernal-Texca, 
J. Martorell, 
N. F. van Hulst
J. Phys. Chem. Lett. 14, 1999-2005 (2023)
Controlling the electrochemical hydrogen generation and storage in graphene oxide by in-situ raman spectroscopy
A. Pinilla-Sánchez, 
E. Chávez-Angel, 
S. Murcia-López, 
N.M. Carretero, 
S. M. Palardonio, 
P. Xiao, 
D. Rueda-García, 
C. M. Sotomayor Torres, 
P. Gómez-Romero, 
J. Martorell, 
C. Ros
Carbon 200, 227-235 (2022)
Wide bandgap perovskite photovoltaic cells for stray light recycling in a system emitting broadband polarized light
G. Martínez‐Denegri, 
C. G. Ferreira, 
M. A. Ruiz‐Preciado, 
P. Fassl, 
M. Kramarenko, 
U. W. Paetzold, 
J. Martorell
Adv. Energy Mat. 12, 2201473 (2022)
Light recycling using perovskite solar cells in a half‐cylinder photonic plate for an energy efficient broadband polarized light emission
C. G. Ferreira, 
G. Martínez-Denegri, 
M. Kramarenko, 
J. Toudert, 
J. Martorell
Adv. Photon. Res. 2, 2100077 (2021)
Photocurrent-detected 2D electronic spectroscopy reveals ultrafast hole transfer in operating PM6/Y6 organic solar cells
L. Bolzonello, 
F. Bernal-Texca, 
L. G. Gerling, 
J. Ockova, 
E. Collini, 
J. Martorell, 
N. F. van Hulst

J. Phys. Chem. Lett. 12, 3983-3988 (2021)

Light harvesting at oblique incidence decoupled from transmission in organic solar cells exhibiting 9.8% efficiency and 50% visible light transparency
Q. Liu, 
L. G. Gerling, 
F. Bernal‐Texca, 
J. Toudert, 
T. Li, 
X. Zhan, 
J. Martorell
Adv. Energy Mater. 10, 1904196 (2020)
Relation between fluorescence quantum yield and open?circuit voltage in complete perovskite solar cells
M. Kramarenko, 
C. G. Ferreira, 
G. Martínez-Denegri, 
C. Sansierra, 
J. Toudert, 
J. Martorell
Sol. RRL 4,4 (2020)
Water splitting of hydrogen chemisorbed in graphene oxide dynamically evolves into a graphane lattice
L. Ciammaruchi, 
L. Bellucci, 
G. C. Castillo, 
G. M. D. Sánchez, 
Q. Liu, 
V. Tozzini, 
J. Martorell
Carbon 153, 234-241 (2019)
Inverse optical cavity design for ultrabroadband light absorption beyond the conventional limit in low?bandgap nonfullerene acceptor–based solar cells
Q. Liu, 
J. Toudert, 
T. Li, 
M. Kramarenko, 
G. Martínez‐Denegri, 
L. Ciammaruchi, 
X. Zhan, 
J. Martorell
Adv. Energy Mater. 9, 1900463 (2019)
Ergodic light propagation in a half-cylinder photonic plate for optimal absorption in Perovskite solar cells
G. Martínez-Denegri, 
S. Colodrero, 
Q. Liu, 
J. Toudert, 
G. Kozyreff, 
J. Martorell
Adv. Opt. Mater. 7, 1900018 (2019)
All-Nanoparticle SnO2/TiO2 Electron-Transporting Layers Processed at Low Temperature for Efficient Thin-Film Perovskite Solar Cells
G. Martínez-Denegri, 
S. Colodrero, 
M. Kramarenko, 
J. Martorell
ACS Appl. Energy Mater. 1, 5548–5556 (2018)
High open-circuit voltage and short-circuit current flexible polymer solar cells using ternary blends and ultrathin Ag-based transparent electrodes
Q. Liu, 
J. Toudert, 
L. Ciammaruchi, 
G. Martínez-Denegri, 
J. Martorell
J. Mater. Chem. A 5, 25476-25484 (2017)
Circumventing UV light induced nanomorphology disorder to achieve long lifetime PTB7-Th:PCBM based solar cells
Q. Liu, 
J. Toudert, 
F. Liu, 
P. Mantilla-Perez, 
M. Montes Bajo, 
T. P. Russell, 
J. Martorell
Adv. Energy Mater. 7, 1701201 (2017)
Interband transitions in semi-metals, semiconductors, and topological insulators: a new driving force for plasmonics and nanophotonics [Invited]
J. Toudert, 
R. Serna
Opt. Mater. Express 7, 2299 (2017)
A two-resonance tapping cavity for an optimal light trapping in thin-film solar cells
Q. Liu, 
P. Romero-Gómez, 
P. Mantilla-Perez, 
S. Colodrero, 
J. Toudert, 
J. Martorell
Adv. Energy Mater. 7, 1700356 (2017)
Monolithic CIGS–Perovskite tandem cell for optimal light harvesting without current matching
P. Mantilla-Perez, 
T. Feurer, 
J.-P. Correa-Baena, 
Q. Liu, 
S. Colodrero, 
J. Toudert, 
M. Saliba, 
S. Buecheler, 
A. Hagfeldt, 
A. N. Tiwari, 
J. Martorell
ACS Photonics 4, 861-867 (2017)
UV-induced oxygen Removal for Photostable, High-Efficiency PTB7-Th:PC71BM Photovoltaic cells
Q. Liu, 
P. Mantilla-Perez, 
M. Montes Bajo, 
P. Romero-Gómez, 
J. Martorell
ACS Appl. Mater. Interfaces 8, 28750–28756 (2016)
Neutral water splitting catalysis with a High FF triple junction polymer cell
X. Elias, 
Q. Liu, 
C. Gimbert-Surinach, 
R. Matheu, 
P. Mantilla-Perez, 
A. Martínez-Otero, 
X. Sala, 
J. Martorell, 
A. Llobet
ACS Catal. 6, 3310-3316 (2016)
Monitoring degradation mechanisms in PTB7:PC71BM photovoltaic cells by means of impedance spectroscopy
B. Arredondo, 
M. B. Martín-Lópeza, 
B. Romero, 
R. Vergaz, 
P. Romero-Gómez, 
J. Martorell
Sol. Energy Mat. Sol. Cells 144, 422-428 (2016)
Highly flexible transparent electrodes containing ultrathin silver for efficient polymer solar cells
D. S. Ghosh, 
Q. Liu, 
P. Mantilla-Perez, 
T. L. Chen, 
V. Mkhitaryan, 
M. Huang, 
S. Garner, 
J. Martorell, 
V. Pruneri
Adv. Funct. Mater. 25, 7309-7316 (2015)
4‑Terminal tandem photovoltaic cell using two Layers of PTB7:PC71BM for optimal light absorption
P. Mantilla-Perez, 
A. Martínez-Otero, 
P. Romero-Gómez, 
J. Martorell
ACS Appl. Mater. Interfaces 7, 18435-18440 (2015)
An extremely thin and robust interconnecting layer providing 76% fill factor in a tandem polymer solar cell architecture
A. Martínez-Otero, 
Q. Liu, 
P. Mantilla-Perez, 
M. Montes Bajo, 
J. Martorell
J. Mater. Chem. A 3, 10681-10686 (2015)
An indium tin oxide-free polymer solar cell on flexible glass
N. Formica, 
P. Mantilla-Perez, 
D. S. Ghosh, 
D. Janner, 
T. L. Chen, 
M. Huang, 
S. Garner, 
J. Martorell, 
V. Pruneri
ACS Appl. Mater. Interfaces 7, 4541-4548 (2015)
Semi-transparent polymer solar cells
P. Romero-Gómez, 
F. Pastorelli, 
P. Mantilla-Perez, 
M. Mariano, 
A. Martínez-Otero, 
X. Elias, 
R. Betancur, 
J. Martorell
J. Photon. Energy 5, 057212 (2015)
Enhanced stability in semi-transparent PTB7/PC71BM photovoltaic cells
P. Romero-Gómez, 
R. Betancur, 
A. Martínez-Otero, 
X. Elias, 
M. Mariano, 
B. Romero, 
B. Arredondo, 
R. Vergaz, 
J. Martorell
Sol. Energy Mat. Sol. Cells 137, 44-49 (2015)
Enhanced light harvesting in semitransparent organic solar cells using an optical metal cavity configuration
F. Pastorelli, 
P. Romero-Gómez, 
R. Betancur, 
A. Martinez-Otero, P. Mantilla-Perez, 
N. Bonod, 
J. Martorell
Adv. Energ. Mater. 5, 1400614 (2015)
Light coupling into the whispering gallery modes of a fiber array thin film solar cell for fixed partial sun tracking
M. Mariano, 
F. J. Rodríguez, 
P. Romero-Gómez, 
G. Kozyreff, 
J. Martorell
Sci. Rep. 4, 4959 (2014)
Self-assembled plasmonic oligomers for organic photovoltaics
F. Pastorelli, 
S. Bidault, 
J. Martorell, 
N. Bonod
Adv. Opt. Mater. 2, 171-175 (2014)
Transparent polymer solar cells employing a layered light-trapping architecture
R. Betancur, 
P. Romero-Gómez, 
A. Martínez-Otero, 
X. Elias, 
M. Maymó, 
J. Martorell
Nature Photon. 7, 995-1000 (2013)
Ultrathin oxidized Ti to increase stability and smoothness of Al doped ZnO transparent conductors for high efficiency indium-free polymer solar cells
N. Formica, 
D. S. Ghosh, 
A. Martínez-Otero, 
T. L. Chen, 
J. Martorell, 
V. Pruneri
Appl. Phys. Lett. 103, 183304 (2013)
Microcavity effects on the generation, fluorescence, and diffusion of excitons in organic solar cells
G. Kozyreff, 
D. C. Urbanek, 
L. T. Vuong, 
O. Nieto Silleras, 
J. Martorell
Opt. Express 21, A336-A354 (2013)
High-performance polymer solar cells using an optically enhanced architecture
A. Martínez-Otero, 
X. Elias, 
R. Betancur, 
J. Martorell
Adv. Opt. Mater. 1, 37-42 (2013)
Molecular conformation in organic films from quantum chemistry ab initio calculations and second harmonic spectroscopy
R. Macovez, 
N. Lopez, 
M. Mariano, 
M. Maymó, 
J. Martorell
J. Phys. Chem. C 116, 26784–26790 (2012)
Optical interference for the matching of the external and internal quantum efficiencies inorganic photovoltaic cells
R. Betancur, 
A. Martínez-Otero, 
X. Elias, 
P. Romero-Gómez, 
S. Colodrero, 
H. Míguez, 
J. Martorell
Sol. Energy Mat. Sol. Cells 104, 87-91 (2012)
Controlling the diffused nonlinear light generated in random materials
C. Yao, 
F. J. Rodríguez, 
J. Martorell
Opt. Lett. 37, 1676-1678 (2012)
Efficient polymer solar cell employing an oxidized Ni capped Al:ZnO anode without the need of additional hole-transporting-layer
T. L. Chen, 
R. Betancur, 
D. S. Ghosh, 
J. Martorell, 
V. Pruneri
Appl. Phys. Lett. 100, 013310 (2012)
Nonlinear optics in spheres: from second harmonic scattering to quasi-phase matched generation in whispering gallery modes
G. Kozyreff, 
J. L. Domínguez-Juárez, 
J. Martorell
Laser & Photon. Rev. 5, 737-749 (2011)
Highlighted in Materials Views
Large optical-frequency shift of molecular radiation via coherent coupling to an off-resonance plasmon
R. Macovez, 
M. Mariano, 
S. Di Finizio, 
G. Kozyreff, 
J. Martorell
Phys. Rev. Lett. 107, 073902 (2011)
Observation of speckle pattern formation in transparent nonlinear random media
F. J. Rodríguez, 
C. Yao, 
J. L. Domínguez-Juárez, 
J. Bravo-Abad, 
J. Martorell
Opt. Lett. 36, 1347-1349 (2011)
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