Molelcular Photovoltaics and Perovskite Solar Cells
Michael Graetzel a
a Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Switzerland, Station 6, CH-1015 Lausanne, Lausanne, Switzerland
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Benidorm, Spain, 2018 May 28th - 31st
Organizers: Emilio Palomares and Rene Janssen
Keynote, Michael Graetzel, presentation 205
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.

© FUNDACIO DE LA COMUNITAT VALENCIANA SCITO
We use our own and third party cookies for analysing and measuring usage of our website to improve our services. If you continue browsing, we consider accepting its use. You can check our Cookies Policy in which you will also find how to configure your web browser for the use of cookies. More info