Hybrid Organic-Inorganic Perovskites: Materials and Solar Cells

Gary Hodes^a, David Cahen^a

International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics 2015 (HOPV15)

Roma, Italy, 2015 May 11th - 13th

Organizer: Filippo De Angelis

Invited Speaker, David Cahen, presentation 230
Publication date: 5th February 2015

With solution-processed, organic-inorganic hybrid lead halide perovskite-based solar cell developments being meteoric over the last few years, the questions of how these materials form, how hard or easy it is to decompose the compounds, and how can and do the solar cells that are made with them work, are topics of significant fundamental interest. Here we will describe our results on nano- and macro-scale electronic characterizations of cells, both iodide and bromide ones, to address how the cells can function, optical and electron microscopy (in part together with B-nano®) studies to address the question of how the materials form, and analytical chemical analyses ones to understand how they decompose in water, especially under conditions of rain. Combining insights in these aspects may help to provide an idea of realistic future prospects for these materials and for devices made with them. The work, described here involves Thomas Brenner, Igal Levine, Michael Kulbak, Nir Kedem, Yevgeny Rakita, Bekele Teklemariam, as well as Boris Rybtchinski and his research group, and, in the past also Eran Edri, Saar Kirmayer, Yaron Tidhar and Lee Barneaat the Weizmann Institute, in addition to Antoine Kahn and Philip Schulz at Princeton Univ. and the B-nano team. We thank the Leona M. and Harry B. Helmsley Charitable Trust, in the frame of the Weizmann Institute’s Alternative Sustainable Energy Research Initiative (AERI), for supporting our work in solar energy conversion, and to the Israel Ministry of Science for partial support. D.C. holds the Rowland and Sylvia Schaefer chair in Energy Research.

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