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Wide and ultra-wide bandgap oxides: where paradigm-shift photovoltaics meets transparent power electronics
Author(s): Amador Pérez-Tomás; Ekaterine Chikoidze; Michael R. Jennings; Stephen A. O. Russell; Ferechteh H. Teherani; Philippe Bove; Eric V. Sandana; David J. Rogers
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Paper Abstract

Oxides represent the largest family of wide bandgap (WBG) semiconductors and also offer a huge potential range of complementary magnetic and electronic properties, such as ferromagnetism, ferroelectricity, antiferroelectricity and high-temperature superconductivity. Here, we review our integration of WBG and ultra WBG semiconductor oxides into different solar cells architectures where they have the role of transparent conductive electrodes and/or barriers bringing unique functionalities into the structure such above bandgap voltages or switchable interfaces. We also give an overview of the state-of-the-art and perspectives for the emerging semiconductor β- Ga2O3, which is widely forecast to herald the next generation of power electronic converters because of the combination of an UWBG with the capacity to conduct electricity. This opens unprecedented possibilities for the monolithic integration in solar cells of both self-powered logic and power electronics functionalities. Therefore, WBG and UWBG oxides have enormous promise to become key enabling technologies for the zero emissions smart integration of the internet of things.

Paper Details

Date Published: 6 March 2018
PDF: 14 pages
Proc. SPIE 10533, Oxide-based Materials and Devices IX, 105331Q (6 March 2018); doi: 10.1117/12.2302576
Show Author Affiliations
Amador Pérez-Tomás, Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, Barcelona Institute of Technology (Spain)
Ekaterine Chikoidze, Univ. de Versailles Saint-Quentin-en Yvelines, CNRS, Univ. Paris-Saclay (France)
Michael R. Jennings, The Univ. of Warwick (United Kingdom)
Stephen A. O. Russell, The Univ. of Warwick (United Kingdom)
Ferechteh H. Teherani, Nanovation (France)
Philippe Bove, Nanovation (France)
Eric V. Sandana, Nanovation (France)
David J. Rogers, Nanovation (France)

Published in SPIE Proceedings Vol. 10533:
Oxide-based Materials and Devices IX
David J. Rogers; David C. Look; Ferechteh H. Teherani, Editor(s)

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