Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Naji, M.
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Nelson, J.

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in Cooperation with on an Cooperation-Score of 37%

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Publications (40/40 displayed)

  • 2024Predictive maintenance optimisation for CCTV systems in electric multiple unit trains using machine learning techniquescitations
  • 2020Ring fusion in tetrathienylethene cored perylene diimide tetramers affords acceptors with strong and broad absorption in the near-UV to visible region14citations
  • 2020Correlating the phase behavior with the device performance in binary poly-3-hexylthiophene: nonfullerene acceptor blend using optical probes of the microstructure25citations
  • 2019Spectroscopic investigation of the effect of microstructure and energetic offset on the nature of interfacial charge transfer states in polymer: fullerene blends39citations
  • 2019Ionic-to-electronic current amplification in hybrid perovskite solar cells: ionically gated transistor-interface circuit model explains hysteresis and impedance of mixed conducting devices183citations
  • 2019Symmetry based molecular design for triplet excitation and optical spin injection4citations
  • 2019Spectroscopic Investigation of the Effect of Microstructure and Energetic Offset on the Nature of Interfacial Charge Transfer States in Polymer: Fullerene Blendscitations
  • 2019The importance of microstructure in determining polaron generation yield in poly(9,9-dioctylfluorene)19citations
  • 2018Exploring the validity and limitations of the Mott-Gurney law for charge-carrier mobility determination of semiconducting thin-films153citations
  • 2018Influence of the hole transporting layer on the thermal stability of inverted organic photovoltaics using accelerated-heat lifetime protocols49citations
  • 2018A Study of the Effects of Al, Cr, Hf, and Ti Additions on the Microstructure and Oxidation of Nb-24Ti-18Si Silicide Based Alloys38citations
  • 2017P-type semiconductor surfactant modified zinc oxide nanorods for hybrid bulk heterojunction solar cells16citations
  • 2017P-type semiconductor surfactant modified zinc oxide nanorods for hybrid bulk heterojunction solar cells16citations
  • 2017Quantitative Analysis of the Molecular Dynamics of P3HT:PCBM Bulk Heterojunctioncitations
  • 2017An alkylated indacenodithieno[3,2-b]thiophene-based nonfullerene acceptor with high crystallinity exhibiting single junction solar cell efficiencies greater than 13% with low voltage losses491citations
  • 2017Influence of orientation mismatch on charge transport across grain boundaries in tri-isopropylsilylethynyl (TIPS) pentacene thin films32citations
  • 2016Thermal ring-opening polymerization of hydrocarbon-bridged [2]ferrocenophanes: Synthesis and properties of poly(ferrocenylethylene)s and their charge-transfer polymer salts with tetracyanoethylene75citations
  • 2016Reducing the efficiency–stability–cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells973citations
  • 2016P-type semiconductor surfactant modified zinc oxide nanorods for hybrid bulk heterojunction solar cells16citations
  • 2015Polaron pair mediated triplet generation in polymer/fullerene blendscitations
  • 2015Role of Polymer Fractionation in Energetic Losses and Charge Carrier Lifetimes of Polymer: Fullerene Solar Cells22citations
  • 2015Reversible hydration of CH(3)NH(3)Pbl(3) in films, single crystals, and solar cells1255citations
  • 20154H-1,2,6-Thiadiazin-4-one-containing small molecule donors and additive effects on their performance in solution-processed organic solar cells31citations
  • 2013Photocurrent enhancement from diketopyrrolopyrrole polymer solar cells through alkyl-chain branching point manipulation.270citations
  • 2013Factors limiting device efficiency in organic photovoltaics580citations
  • 2013The effect of organic and metal oxide interfacial layers on the performance of inverted organic photovoltaics40citations
  • 2012Post-Processing Treatments in Hybrid Polymer/Titanium Dioxide Multilayer Solar Cells7citations
  • 2011Influence of blend microstructure on bulk heterojunction organic photovoltaic performance536citations
  • 2010Recombination dynamics as a key determinant of open circuit voltage in organic bulk heterojunction solar cells: A comparison of four different donor polymers367citations
  • 2010Determination and Control of Microstructure in Organic Photovoltaic Devicescitations
  • 2009Transient absorption spectroscopy of charge photogeneration yields and lifetimes in a low bandgap polymer/fullerene film91citations
  • 2008X-ray stability and response of polymeric photodiodes for imaging applications68citations
  • 2004Ultrafast spectroscopic studies in polyfluorene: [6,6]-phenyl C <inf>61</inf>-butyric acid methyl ester blend films: Monitoring the photoinduced charge transfer process13citations
  • 2004Effect of morphology on electron drift mobility in porous TiO256citations
  • 2004Charge recombination studies in polyfluorene:[6,6]-Phenyl C <inf>61</inf>-butyric acid methyl ester blend photovoltaic cells1citations
  • 2003Charge recombination dynamics in a polymer/fullerene bulk heterojunction studied by transient absorption spectroscopy4citations
  • 2003Charge recombination in conjugated polymer/fullerene blended films studied by transient absorption spectroscopy196citations
  • 2003Efficient polyfluorene based solar cells58citations
  • 2003Composition dependence of electron and hole transport in polyfluorene:[6,6]-phenyl C<inf>61</inf>-butyric acid methyl ester blend films80citations
  • 2002Transient optical studies of charge recombination dynamics in a polymer/fullerene composite at room temperature192citations

Places of action

Chart of shared publication
Rahman, M. M.
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Jain, A. K.
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Alkali, B.
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Parrilla Gutierrez, J. M.
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Mcneil, C.
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Stringer, M.
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Chart of publication period
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Co-Authors (by relevance)

  • Rahman, M. M.
  • Jain, A. K.
  • Alkali, B.
  • Parrilla Gutierrez, J. M.
  • Mcneil, C.
  • He, Q.
  • Fei, Z.
  • Eisner, Fd
  • Hodsden, T.
  • Pearce, D.
  • Rezasoltani, E.
  • Medranda, D.
  • Heeney, M.
  • Rodríguez-Martínez, X.
  • Campoy-Quiles, M.
  • Yan, J.
  • Wadsworth, A.
  • Mcculloch, I.
  • Eisner, F.
  • Guilbert, Aay
  • Tuladhar, Sm
  • Azzouzi, M.
  • Hamid, Z.
  • Dimitrov, Sd
  • Durrant, Jr
  • Wu, J.
  • Dong, Y.
  • Yao, J.
  • Schroeder, Bc
  • Tuladhar, Ps
  • Bittner, Er
  • Game, O.
  • Palomares, E.
  • Stringer, M.
  • Fisher, W.
  • Gelmetti, I.
  • Lidzey, D.
  • Calado, P.
  • Barnes, Prf
  • Moia, D.
  • Docampo, P.
  • Hu, Y.
  • Szumska, Aa
  • Sirringhaus, H.
  • Shakya Tuladhar, P.
  • Dimitrov, S.
  • Bittner, E.
  • Schroeder, B.
  • Durrant, J.
  • Ortiz, M.
  • Bradley, Ddc
  • Cheetham, Nj
  • Stavrinou, P.
  • Silva, C.
  • Parker, Aw
  • Perevedentsev, A.
  • Dion-Bertrand, L-I
  • Greetham, Gm
  • Hayes, Sc
  • Sazanovich, Iv
  • Towrie, M.
  • Haque, Sa
  • Kirchartz, T.
  • Rohr, Ja
  • Savva, A.
  • Choulis, Sa
  • Hermerschmidt, F.
  • Brabec, Cj
  • Georgiou, E.
  • Ghadyani, M.
  • Tsakiropoulos, P.
  • Utton, C.
  • Ackermann, C.
  • Ishwara, T.
  • Fall, S.
  • Watanabe, T.
  • Martini, C.
  • Wang, M.
  • Hannani, D.
  • Poize, G.
  • Margeat, O.
  • Fages, F.
  • Dkhil, S. Ben
  • Yoshimoto, N.
  • Shupyk, I.
  • Dachraoui, W.
  • Brunel, F.
  • Shilova, E.
  • Gaceur, M.
  • Ackermann, Jörg
  • Mawyin, J.
  • Ackermann, J.
  • Ben Dkhil, S.
  • Dunbar, A. D. F.
  • Zbiri, M.
  • Guilbert, A. A. Y.
  • Han, Y.
  • Mcneill, Cr
  • Anthopoulos, Td
  • Jiao, X.
  • Röhr, Ja
  • Easton, Cd
  • Chesman, Asr
  • Shahid, M.
  • Steiner, F.
  • Poelking, C.
  • Andrienko, D.
  • Niedzialek, D.
  • Lough, A.
  • Greedan, J.
  • Barlow, S.
  • Macdonald, P.
  • Nguyen, P.
  • Raju, N.
  • Manners, I.
  • Rengel, H.
  • Petersen, R.
  • Ohare, D.
  • Gasparini, N.
  • Baran, D.
  • Abdelsamie, M.
  • Ashraf, R. S.
  • Neophytou, M.
  • Lockett, S.
  • Holliday, S.
  • Durrant, J. R.
  • Emmott, C. J. M.
  • Röhr, J. A.
  • Hanifi, D. A.
  • Salleo, A.
  • Amassian, A.
  • Videlot-Ackermann, C.
  • Wheeler, S.
  • Utzat, H.
  • Gillett, A.
  • Frost, Jm
  • Schroeder, B. C.
  • Bronstein, H.
  • Deledalle, F.
  • Ameri, T.
  • Vezie, M. S.
  • Azarhoosh, P.
  • Weber, Oj
  • Bein, T.
  • Isabel Alonso, M.
  • Weller, Mt
  • Van Schilfgaarde, M.
  • Leguy, Ama
  • Itskos, G.
  • Min, J.
  • Choulis, S. A.
  • Faber, H.
  • Koutentis, P. A.
  • Anthopoulos, T. D.
  • Kalogirou, A. S.
  • Zissimou, G. A.
  • Tuladhar, S. M.
  • Bradley, D. D. C.
  • Beatrup, D.
  • Vezie, Ms
  • Mollinger, S.
  • Ashraf, Rs
  • Meager, I.
  • Janssen, René A. J.
  • Kennou, S.
  • Elefteriou, P.
  • Giannouli, M.
  • Sygellou, L.
  • Petraki, F.
  • Voigt, M.
  • Atienzar Corvillo, Pedro Enrique
  • Ravirajan, P.
  • Maurano, A.
  • Hamilton, R.
  • Shuttle, C. G.
  • Ballantyne, A. M.
  • Azimi, H.
  • Oregan, B.
  • Zhang, W.
  • Morana, M.
  • Jamieson, F.
  • Ballantyne, A.
  • Clarke, T.
  • Agostinelli, T.
  • Friend, Richard, H.
  • Speller, R.
  • Blakesley, J. C.
  • Greenham, N. C.
  • Keivanidis, P. E.
  • Virgili, T.
  • Lanzani, G.
  • Pacios, R.
  • Choy, K. L.
  • Aduda, B. O.
  • Österbacka, R.
  • Westerling, M.
  • Montanari, I.
  • Winder, C.
  • Sariciftci, N. S.
  • Nogueira, A. F.
  • Loi, M. A.
OrganizationsLocationPeople

article

Factors limiting device efficiency in organic photovoltaics

  • Nelson, J.
  • Janssen, René A. J.
Abstract

The power conversion efficiency of the most efficient organic photovoltaic (OPV) cells has recently increased to over 10%. To enable further increases, the factors limiting the device efficiency in OPV must be identified. In this review, the operational mechanism of OPV cells is explained and the detailed balance limit to photovoltaic energy conversion, as developed by Shockley and Queisser, is outlined. The various approaches that have been developed to estimate the maximum practically achievable efficiency in OPV are then discussed, based on empirical knowledge of organic semiconductor materials. Subsequently, approaches made to adapt the detailed balance theory to incorporate some of the fundamentally different processes in organic solar cells that originate from using a combination of two complementary, donor and acceptor, organic semiconductors using thermodynamic and kinetic approaches are described. The more empirical formulations to the efficiency limits provide estimates of 10–12%, but the more fundamental descriptions suggest limits of 20–24% to be reachable in single junctions, similar to the highest efficiencies obtained for crystalline silicon p-n junction solar cells. Closing this gap sets the stage for future materials research and development of OPV.

Topics
  • impedance spectroscopy
  • theory
  • semiconductor
  • Silicon
  • power conversion efficiency