Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
DOI: https://doi.org/10.29363/nanoge.hopv.2018.205
Publication date: 21st February 2018
My lecture will cover the recent emergence of a new generation of photovoltaics based on molecular sensitizers [1,2] and perovskite pigments as light harvesters. Dye sensitized solar cells have meanwhile found applications as flexible light weight power supplies for portable electronics as well as electric power producing glass panels their market being presently in the multi-megawatt range. Perovskite solar cells (PSCs) [1] directly evolved from DSCs and are attracted enormous interest due to their low cost ease of preparation and ha certified solar to electric power conversion efficiency (PCE) exceeding already the performance polycrystalline silicon solar cells. Present efforts focus on scale up of the device size [2] and achieving operational stability [3]. The high photovoltage (Voc > 1.2 V) attained with these systems renders them very attractive for the generation of fuels from sunlight, e.g. by the splitting of water into hydrogen and oxygen [4] and the cleavage of CO2 into CO and 1/2 O2.
References:
[1] B.O’Regan and M. Grätzel “A Low Cost, High Efficiency Solar Cell based on the Sensitization of Colloidal Titanium Dioxide, Nature,1991, 353, 7377-7381.
[2] M. Grätzel, Photoelectrochemical Cells,Nature 2001, 414, 332.
[3] M. Grätzel, The light and shade of perovskite solar cells., Nature Materials 2014, 13, 838-842.
[4] X. Li, D. Bi, C. Yi, J.-D. Décoppet, J. Luo, S.M. Zakeeruddin, A. Hagfeldt, M. Grätzel,
A vacuum flash–assisted solution process for high-efficiency large-area perovskite solar cells, Science, 353, 58-62 (2016)
[5] N. Arora, M.I. Dar, A. Hinderhofer, N. Pellet, F. Schreiber, S.M. Zakeeruddin, M. Grätzel, Perovskite solar cells with CuSCN hole extraction layers yield stabilized efficiencies greater than 20%., Science, 358, 768-771 (2017)
[6] J. Luo, J.-H. Im, M.T. Mayer, M. Schreier, Md.K. Nazeeruddin, N.-G. Park, S.D.Tilley, H.J. Fan, M. Grätzel. Water photolysis at 12.3% efficiency via perovskite photovoltaics and Earth abundant catalysts. Science 2014, 345, 1593-1596.
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International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
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