Friend Richard - University of Cambridge - The Cavendish Laboratory

个人简介

Richard Friend holds the Cavendish Professorship of Physics at the University of Cambridge. He is Director of the Winton Programme for the Physics of Sustainability and of the Maxwell Centre.

研究领域

His research encompasses the physics, materials science and engineering of semiconductor devices made with carbon-based semiconductors, particularly polymers. His research group was first to demonstrate using polymers efficient operation of field-effect transistors and light-emitting diodes. These advances revealed that the semiconductor properties of this broad class of materials are unexpectedly clean, so that semiconductor devices can both reveal their novel semiconductor physics, including their operation in efficient photovoltaic diodes, optically-pumped lasing, directly-printed polymer transistor circuits and light-emitting transistors. Photogeneration and recombination of charge in molecular semiconductors. Singlet exciton fission to triplet exciton pairs and fusion of triplet exciton pairs to singlet excitons. LEDs and lasers based on lead halide perovskites.

近期论文

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Ultrafast Long-Range Charge Separation in Organic Semiconductor Photovoltaic Diodes", S. Gelinas, A. Rao, A. Kumar, S. L. Smith, A. W. Chin, J. Clark, T. S. van der Poll, G. C. Bazan, and R. H. Friend, Science 343, 512-516 (2014). DOI http://dx.doi.org/10.1126/science.1246249 The Role of Driving Energy and Delocalized States for Charge Separation in Organic Semiconductors", A. A. Bakulin, A. Rao, V. G. Pavelyev, P. H. M. van Loosdrecht, M. S. Pshenichnikov, D. Niedzialek, J. Cornil, D. Beljonne, and R. H. Friend, Science 335, 1340-1344 (2012). DOI http://dx.doi.org/10.1126/science.1217745 The role of spin in the kinetic control of recombination in organic photovoltaics", A. Rao, P. C. Y. Chow, S. Gelinas, C. W. Schlenker, C.-Z. Li, H.-L. Yip, A. K. Y. Jen, D. S. Ginger, and R. H. Friend, Nature 500, 435-439 (2013). DOI http://dx.doi.org/10.1038/nature12339 Spin-dependent recombination probed through the dielectric polarizability", S. L. Bayliss, N. C. Greenham, R. H. Friend, H. Bouchiat, and A. D. Chepelianskii, Nat Commun 6 (2015). DOI http://dx.doi.org/10.1038/ncomms9534 Identification of a triplet pair intermediate in singlet exciton fission in solution", H. L. Stern, A. J. Musser, S. Gelinas, P. Parkinson, L. M. Herz, M. J. Bruzek, J. Anthony, R. H. Friend, and B. J. Walker, Proceedings of the National Academy of Sciences 112, 7656-7661 (2015). DOI http://dx.doi.org/10.1073/pnas.1503471112 A transferable model for singlet-fission kinetics", S. R. Yost, J. Lee, M. Wilson, W. B., T. Wu, D. P. McMahon, R. R. Parkhurst, N. J. Thompson, D. N. Congreve, A. Rao, K. Johnson, M. Y. Sfeir, M. Bawendi, T. M. Swager, R. H. Friend, M. A. Baldo, and T. Van Voorhis, Nature Chemistry 6, 492-497 (2014). DOI http://dx.doi.org/10.1038/nchem.1945 Singlet exciton fission in solution", B. J. Walker, A. J. Musser, D. Beljonne, and R. H. Friend, Nature Chemistry 5, 1019-1024 (2013). DOIhttp://dx.doi.org/10.1038/nchem.1801 In situ measurement of exciton energy in hybrid singlet-fission solar cells", B. Ehrler, B. J. Walker, M. L. Boehm, M. W. B. Wilson, Y. Vaynzof, R. H. Friend, and N. C. Greenham, Nature Communications 3, 1019 (2012). DOI http://dx.doi.org/10.1038/ncomms2012 Resonant Energy Transfer of Triplet Excitons from Organic to Inorganic Semiconductors", M. Tabachnyk, B. Ehrler, S. GÃ©linas, M. L. Boehm, B. J. Walker, K. P. Musselman, N. C. Greenham, R. H. Friend, and A. Rao, Nature Materials 13, 1033-1038 (2014). DOI http://dx.doi.org/10.1038/NMAT4093 High Photoluminescence Efficiency and Optically-Pumped Lasing in Solution-Processed Mixed Halide Perovskite Semiconductors", F. Deschler, M. Price, S. Pathak, L. Klintberg, D. D. Jarausch, R. Higler, S. Huettner, T. Leijtens, S. D. Stranks, H. J. Snaith, M. Atature, R. T. Phillips, and R. H. Friend, The Journal of Physical Chemistry Letters 5, 1421-1426 (2014). DOI http://dx.doi.org/10.1021/jz5005285 Bright light-emitting diodes based on organometal halide perovskite", Z.-K. Tan, R. S. Moghaddam, M. L. Lai, P. Docampo, R. Higler, F. Deschler, M. Price, A. Sadhanala, L. M. Pazos, D. Credgington, F. Hanusch, T. Bein, H. J. Snaith, and R. H. Friend, Nature Nanotechnology 9, 687-692 (2014). DOI http://dx.doi.org/10.1038/nnano.2014.149 Hot-carrier cooling and photoinduced refractive index changes in organic-inorganic lead halide perovskites", M. B. Price, J. Butkus, T. C. Jellicoe, A. Sadhanala, A. Briane, J. E. Halpert, K. Broch, J. M. Hodgkiss, R. H. Friend, and F. Deschler, Nature Communications 6, 8420-8420 (2015). DOI http://dx.doi.org/10.1038/ncomms9420