
Organic Nanostructured Photovoltaics
Prof. Dr. Jordi Martorell
- Activities:
Nano- or micro-structuring materials is an essential ingredient to manipulate the light – matter interaction. We imprint such structuring on different kind of materials to enhance the performance of organic photovoltaic materials. Some of the several kinds of configurations we study are: 1-dimensional photonic crystals to increase the efficiency of organic solar cells, nano thick stacking of several material layers to obtain efficient transparent solar cells, or organic molecules adjacent to metal nano-structures to control the energy transfer mechanism.
- Links:
- Graphene @ ICFO
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Organic Nanostructured Photovoltaics
Prof. Dr. Jordi Martorell


- Group Leader
- Prof. Dr. Jordi Martorell
- Postdoctoral Researchers
- Dr. Luis Guillermo Gerling
- Dr. Carles Ros
- Dr. Mingyu Zhang
- PhD Students
- Francisco Bernal
- Catarina Gonçalves Ferreira
- Mariia Kramarenko
- Guillermo Martínez-Denegri Sánchez
- Constanza Sansierra
- Undergrad & Postgrad Students
- Adrián Pinilla
- Former Group Members
- Rafael Andres Betancur, PhD student
- Laura Ciammaruchi, Postdoctoral researcher
- Silvia Colodrero, Postdoctoral researcher
- Jorge Luis Dominguez, PhD student
- Xavier Elias, Research fellow
- Sergio Di Finizio, PhD student
- Philip Kappe, Postdoctoral researcher
- Gregory Paul N Kozyreff, Visiting scientist
- Quan Liu, PhD student
- Roberto Macovez, Postdoctoral researcher
- Paola Mantilla, PhD student
- Marina Mariano, PhD student
- Manuel Alberto Martínez, Postdoctoral researcher
- Marc Maymó, Research Engineer
- Albert Molinos, Postdoctoral researcher
- Miguel Montes, Research fellow
- Francesco Pastorelli, PhD student
- David Pickup, Research fellow
- Marisol Reyes, Visiting scientist
- Francisco Javier Rodríguez, Research fellow
- Pablo Romero, Research fellow
- Koray Sevim, Visiting scientist
- Xavier Vidal, PhD student
- Luat Thanh Vuong, Postdoctoral researcher
- Can Yao, PhD student
- Hui Zhang, Postdoctoral researcher
Organic Nanostructured Photovoltaics
Prof. Dr. Jordi Martorell

- Regular Papers
- Light harvesting at oblique incidence decoupled from transmission in organic solar cells exhibiting 9.8% efficiency and 50% visible light transparency Adv. Energy Mater. 10, 1904196 (2020)
- Water splitting of hydrogen chemisorbed in graphene oxide dynamically evolves into a graphane lattice 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 Adv. Energy Mater. 9, 1900463 (2019)
- Ergodic light propagation in a half-cylinder photonic plate for optimal absorption in Perovskite solar cells Adv. Opt. Mater. 7, 1900018 (2019)
- High open-circuit voltage and short-circuit current flexible polymer solar cells using ternary blends and ultrathin Ag-based transparent electrodes J. Mater. Chem. A 5, 25476-25484 (2017)
- Circumventing UV light induced nanomorphology disorder to achieve long lifetime PTB7-Th:PCBM based solar cells Adv. Energy Mater. 7, 1701201 (2017)
- A two-resonance tapping cavity for an optimal light trapping in thin-film solar cells Adv. Energy Mater. 7, 1700356 (2017)
- Monolithic CIGS–Perovskite tandem cell for optimal light harvesting without current matching ACS Photonics 4, 861-867 (2017)
- UV-induced oxygen Removal for Photostable, High-Efficiency PTB7-Th:PC71BM Photovoltaic cells ACS Appl. Mater. Interfaces 8, 28750–28756 (2016)
- Neutral water splitting catalysis with a High FF triple junction polymer cell ACS Catal. 6, 3310-3316 (2016)
- Monitoring degradation mechanisms in PTB7:PC71BM photovoltaic cells by means of impedance spectroscopy Sol. Energy Mat. Sol. Cells 144, 422-428 (2016)
- Highly flexible transparent electrodes containing ultrathin silver for efficient polymer solar cells Adv. Funct. Mater. 25, 7309-7316 (2015)
- 4‑Terminal tandem photovoltaic cell using two Layers of PTB7:PC71BM for optimal light absorption 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 J. Mater. Chem. A 3, 10681-10686 (2015)
- An indium tin oxide-free polymer solar cell on flexible glass ACS Appl. Mater. Interfaces 7, 4541-4548 (2015)
- Semi-transparent polymer solar cells J. Photon. Energy 5, 057212 (2015)
- Enhanced stability in semi-transparent PTB7/PC71BM photovoltaic cells Sol. Energy Mat. Sol. Cells 137, 44-49 (2015)
- Enhanced light harvesting in semitransparent organic solar cells using an optical metal cavity configuration 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 Sci. Rep. 4, 4959 (2014)
- Self-assembled plasmonic oligomers for organic photovoltaics Adv. Opt. Mater. 2, 171-175 (2014)
- Transparent polymer solar cells employing a layered light-trapping architecture 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 Appl. Phys. Lett. 103, 183304 (2013)
- Microcavity effects on the generation, fluorescence, and diffusion of excitons in organic solar cells Opt. Express 21, A336-A354 (2013)
- High-performance polymer solar cells using an optically enhanced architecture Adv. Opt. Mater. 1, 37-42 (2013)
- Molecular conformation in organic films from quantum chemistry ab initio calculations and second harmonic spectroscopy J. Phys. Chem. C 116, 26784–26790 (2012)
- Optical interference for the matching of the external and internal quantum efficiencies inorganic photovoltaic cells Sol. Energy Mat. Sol. Cells 104, 87-91 (2012)
- Controlling the diffused nonlinear light generated in random materials 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 Appl. Phys. Lett. 100, 013310 (2012)
- Nonlinear optics in spheres: from second harmonic scattering to quasi-phase matched generation in whispering gallery modes 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 Phys. Rev. Lett. 107, 073902 (2011)
- Observation of speckle pattern formation in transparent nonlinear random media Opt. Lett. 36, 1347-1349 (2011)
- Whispering gallery microresonators for second harmonic light generation from a low number of small molecules Nature Commun. 2, 254 (2011)
- Semi-transparent metal electrode of Cu–Ni as a replacement of an ITO in organic photovoltaic cells Sol. Energy Mat. Sol. Cells 95, 1228-1231 (2011)
- Sputtered NiO as electron blocking layer in P3HT:PCBM solar cells fabricated in ambient air Sol. Energy Mat. Sol. Cells 95, 735-739 (2011)
- Anomalous group velocity at the high energy range of a 3D photonic nanostructure Opt. Express 18, 15682-15690 (2010)
- Molecular quadratic nonlinear susceptibility gratings via electron-beam lithography Appl. Phys. Lett. 97, 023307 (2010)
- Optical second-harmonic scattering from a non-diffusive random distribution of nonlinear domains Opt. Express 18, 14202-14211 (2010)
- Cavity-controlled radiative recombination of excitons in thin-film solar cells Appl. Phys. Lett. 95, 233106 (2009)
- New approaches for the fabrication of photonic structures of nonlinear optical materials J. Lumin. 129, 1441-1447 (2009) Link to J. Lumin.
- Measurement of the dispersion of air and of refractive index anomalies by wavelength-dependent nonlinear interferometry Opt. Express 17, 13881-13888 (2009)
- Light generation at the anomalous dispersion high energy range of a nonlinear opal film Opt. Express 17, 12210-12216 (2009)
- Whispering-gallery-mode phase matching for surface second-order nonlinear optical processes in spherical microresonators Phys. Rev. A 77, 043817 (2008)
- Nonlinear optical response from single spheres coated by a nonlinear monolayer Opt. Lett. 33, 699-701 (2008) Highlighted in The Virtual Journal for Biomedical Optics
- Synthesis of colloidal photonic crystals with high nonlinear optical performance: Towards efficient SHG Adv. Mater. 19, 3814-3818 (2007) Link to Adv. Mat.
- Modified triphenylmethane dye for the efficient nonlinear generation of light in nanostructured materials Appl. Phys. Lett. 91, 081116 (2007)
- Coincidence detection of inharmonic pulses in a nonlinear crystal Phys. Rev. E 75, 012902 (2007)
- A two-dimensional KTiOPO4 photonic crystal grown using a macroporous silicon template Adv. Mater. 18, 2220-2225 (2006)
- Generation of light in media with a random distribution of nonlinear domains Phys. Rev. Lett. 97, 013902 (2006)
- Fast optical self-pulsing in a temporal analog of the Kerr-Slice pattern-forming system Phys. Rev. A 73, 063815 (2006)
- Visible second-harmonic light generated from a self-organized centrosymmetric lattice of nanospheres Opt. Express 14, 2864-2872 (2006)
- Tautomeric enhancement of the hyperpolarizability in new acridine-benzothiazolylamine based NLO chromophores Tetrahedron 61, 9075-9081 (2005)
- Band-structure determination for finite 3-D photonic crystals Appl. Phys. B-Lasers Opt. 81, 277-281 (2005)
- Broadband efficient nonlinear difference generation in a counterpropagating configuration Appl. Phys. Lett. 86, 241113 (2005)
- Proceedings & Book Chapter
- Second order nonlinear processes in photonic crystals 7th International Conference on Transparent Optical Networks 4th European Symposium on Photonic Crystals ESPC 2005, Barcelona, Spain, 4-5 July 2005
- Articles in Magazines
- Detección ultrasensible Inv. Cien. 421, 18-19 (2011)
- Random lasers under control Optics & Photonics Focus 1, 7 (2008)
- Talks
- High performance PTB7:PC71BM solar cells on flexible glass 31st European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2015), Hamburg, Germany, September 2015
- PhD Theses
- Double resonant character in an optical cavity for high performance and stable polymer solar cells
- Multi-junction thin films solar cells for an optimal light harvesting
- Light harvesting in fiber array organic solar cells
- Light generation and manipulation from nonlinear randomly distributed domains in SBN
- Whispering gallery microsresonator for second harmonic light generation
- Light enhancements in nano-structured solar cells
- Photon control in nano-structured organic photovoltaic materials
- Generación de segundo armónico en estructuras desordenadas y diseño molecular para óptica cuadrática no lineal
- Interacció paramètrica no lineal en materials amb nano-estructuració ordenada
Organic Nanostructured Photovoltaics
Prof. Dr. Jordi Martorell

- 2020-12-18 Launch of the LESGO project The project gathers an international team of scientists to carry out research on hydrogen and how to exploit it for electric storage in order to provide green supply of electrical power on demand.
- 2020-04-30 New FET Proactive project to convert sunlight into chemical energy ICFO collaborates to implement PECs for artificial photosynthesis contributing to the fight against climate change
- 2019-05-01 Bringing technological innovations to market GenCat Llavor Grant allows ICFO to launch INTREPID project for the development of an energy-generating window based on thin film organic photovoltaics
- 2018-09-12 Durán Farell Award 2018 Jordi Martorell named 2018 recipient of award for technological research
- 2018-03-23 Congratulations to New ICFO PhD graduate Dr. Quan Liu graduated with a thesis in “Double Resonant Character in an Optical Cavity for High Performance and Stable Polymer Solar Cells”.
- 2017-09-18 Women for Africa Foundation at ICFO Science by Women program makes possible sabbatical stay of Prof Wendy Maxakato
- 2017-05-22 Optical cavities and power conversion efficiencies An ICFO study implements a novel two-resonance tapping cavity architecture to improve power efficiency conversion in solar cells.
- 2015-11-06 Highly Flexible Transparent Optoelectronics ICFO and Corning demonstrate highly flexible transparent conductive substrates in efficient polymer solar cells
- 2014-10-21 Congratulations to New ICFO PhD graduate Dr. Marina Mariano graduated with a thesis in ‘Light Harvesting in Fiber Array Organic Solar Cells’
- 2014-07-23 Congratulations to New ICFO PhD graduate Dr. Luis Dominguez graduated with a thesis in \' ‘Whispering Gallery Microresonator for Second Harmonic Light Generation’
- 2014-06-25 Congratulations to New ICFO PhD graduate Dr. Can Yao graduated with a thesis in ‘Light Generation and Manipulation from Nonlinear Randomly Distributed Domains in SBN’
- 2013-10-21 Light trapping in semi-transparent solar cells in Nature Photonics High power conversion of new solar cells that are thin, flexible, and transparent make them ideal for a wealth of new applications.
- 2013-10-15 Solution Processed High Performance Transparent Organic Photovoltaic Cells New European Project on organic photovoltaics to be coordinated by ICFO.
- 2013-07-19 ACER Initiative for Top High School Students Students with PEB distinction exposed to top research centers in Catalunya.
- 2013-07-10 Congratulations to new ICFO PhD Graduate Dr. Rafael Andrés Betancur Lopera graduated with a thesis of photon management in organic solar cells.
- 2013-04-30 Photonics21 Innovation Award ICFO PhD student Rafael Betancur receives award from the Industrial European Technology Platform Photonics21.
- 2013-02-07 Organic Solar Cell ICFO researchers report in Advanced Optical Materials on a new and more efficient organic solar cell.
- 2012-12-21 New INNPACTO industrial projects at ICFO Two ICFO research groups take on industrial projects with CLP Member COMSA EMTE.
- 2012-10-04 2012 PhD Poster Award Jan Gieseler awarded Best Poster during the celebration of the CLP Day.
- 2011-11-09 Nonlinear Optics in Spheres Review on nonlinear optics in spherical geometry by the group led by Prof. Jordi Martorell on the cover of Laser&Photonics Reviews.
- 2011-04-12 9th IONS Conference ICFO PhD student Can Yao awarded at the IONS student conference held recently in Salamanca.
- 2011-03-29 Featured Image
in Nature Comm. New advances in optical circular resonators for high sensitivity detection of small molecules at the group of Jordi Martorell. - 2010-02-05 New Network of Excellence ICFO hosts the kick-off meeting of Nanophotonics for Energy Efficiency.
- 2009-03-02 Nanolight Meeting at ICFO The 1st annual meeting of the NanoLight.es CONSOLIDER program took place at ICFO.
- 2009-01-20 ICFO Secures Industrial Project on Solar Cells ICFO and the company TFM team up to develop transparent organic solar cells.
- 2008-07-22 Green Brains and Ultracomputers A story on sustainable information technology and another on human brain-like computational power win ICFO Visionary Thinkers Awards 2008.
- 2008-02-21 PhD Thesis Defense
XAVIER VIDAL ASENSIO
\'Second harmonic generation in disordered structures and molecular design for quadratic nonlinear optics\' XAVIER VIDAL ASENSIO
Nano Photonics
Nonlinear photonic structures group
ICFO-The Institute of Photonic Sciences - 2007-12-18 NanoLight kick-off meeting The new Consolider program NanoLight.es, Light control on the nanoscale, has started with a coordination meeting of all participant group leaders at ICFO.
- 2007-12-04 ICFO congratulates a new PhD graduate Dr. Marc Maymó obtained his Doctoral Degree with a project on nonlinear photonic crystals supervised by Prof. Jordi Martorell.
- 2007-11-29 PhD Thesis Defense
MARC MAYMÓ
\'Interacció paramètrica no lineal en materials amb nano-estructuració ordenada\' MARC MAYMÓ
Nano Photonics
Nonlinear photonic structures
ICFO-The Institute of Photonic Sciences - 2006-11-23 ICFO research highlighted by the MRS Bulletin
Research carried out at ICFO in nanophtonics and nonlinear optics fields is highlighted in the last
issue of the Materials Research Society Bulletin - 2006-03-30 SERGIO DI FINIZIO, \'Two-dimensional KTP photonic crystals grown using a macroporous Silicon template\'
SERGIO DI FINIZIO
Nonlinear Photonic Crystals
ICFO-Institute of Photonic Sciences
SPAIN
- 2005-01-27 The Institute welcomes new members Noelia González, Marc Maymó and Albert Molinos have joined ICFO this month