Binary, Doped and Complex Oxides as Transport Layers in Halide Perovskite Solar Cells

Alba Mingorance^a, Haibing Xie^a, Hui-Seon Kim^b, Jose Carlos Pereira^a, Amador Perez-Tomas^a, Zaiwei Wang^b, Marc Balsells^a, Anna Morales-Malgares^a^,^b, Wolfgang Tress^b, Neus Domingo^a, Anders Hagfeldt^b, Monica Lira-Cantu^a

^aCatalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Spain

^bEcole Polytechnique Federale de Lausanne (EPFL), 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

Poster, Monica Lira-Cantu, 243
Publication date: 21st February 2018

We are moving towards a sustainable society powered by renewal energy where solar photovoltaics is one of the most important players. In the past few years, emerging photovoltaic (PV) technologies have observed an exponential increase in power conversion efficiencies (PCE) with halide perovskite solar cells above 22 %, tandem photovoltaics reaching 26 % or dye sensitized solar cells for indoor lighting at the impressive 28.9 % PCE mark. Oxides in solar cells can be found as the main solar absorber responsible for photon-to-electron conversion, as interfacial layers for the transport of electron or holes, as part of the conductive metal electrodes (including transparent electrodes) and also as part of photon management. Among the many advantages is the ease of fabrication, low cost and enhanced stability that provide to the solar cell. Moreover, new-generation of oxides (e.g. doped or undoped, binary, ternary, ferroelectric, etc) are slowly breaking ground providing competitive power conversion efficiencies, enhanced transport properties or improved UV-light stability, among others. We report our most recent studies on the application of classic oxides (binary, doped, nanostructured) and complex oxide compounds (ternary, ferroelectric, etc.) as transport layers in Halide Perovskite Solar Cells. We will discuss their effect on solar cell efficiency and long-term stability of solar cell devices.

[1] A. Hagfeldt, M. Lira-Cantu, Recent concepts and future opportunities for oxides in solar cells, Applied Surface Science, (2018) Accepted.

[2] A. Perez-Tomas, A. Mingorance, Y. Reyna, M. Lira-Cantu, Metal Oxides in Photovoltaics: All-Oxide, Ferroic, and Perovskite Solar Cells, in: M. Lira-Cantu (Ed.) The Future of Semiconductor Oxides in Next Generation Solar Cells, Elsevier, 2017, pp. 566.

[3] M. Lira-Cantú, Perovskite solar cells: Stability lies at interfaces, Nature Energy, 2 (2017) nenergy2017115.

[4] M. Lira-Cantu, The future of semiconductor oxides in next generation solar cells, 1st ed., Elsevier, 2017.

[5] Y. Reyna, M. Salado, S. Kazim, A. Pérez-Tomas, S. Ahmad, M. Lira-Cantu, Performance and Stability of Mixed FAPbI3(0.85)MAPbBr3(0.15) Halide Perovskite Solar Cells Under Outdoor Conditions and the Effect of Low Light Irradiation., Nano Energy, 30 (2016) 570–579.

[6] Kim, H.-S.; Seo, J.-Y.; Xie, H.; Lira-Cantu, M.; Zakeeruddin, S. M.; Grätzel, M.; Hagfeldt, A. Effect of Cs-Incorporated NiOx on the Performance of Perovskite Solar Cells. ACS Omega 2017, 2 (12), 9074-9079, DOI: 10.1021/acsomega.7b01179.

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