Giant bulk photovoltaic effect in solar cell architectures with ultra-wide bandgap Ga2O3 transparent conducting electrodes
Perez-Tomas, Amador (Institut Català de Nanociència i Nanotecnologia)
Chikoidze, Ekaterine (Université de Versailles Saint Quentin en Yvelines - CNRS)
Dumont, Yves (Université de Versailles Saint Quentin en Yvelines - CNRS)
Jennings, M. R. (Swansea University)
Russell, Stephen A. O. (University of Warwick)
Vales Castro, Pablo (Institut Català de Nanociència i Nanotecnologia)
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Lira-Cantu, Monica (Institut Català de Nanociència i Nanotecnologia)
Ton-That, C. (University of Technology Sydney)
Teherani, Féréchteh Hosseini (Nanovation)
Sandana, Vinod E. (Nanovation)
Bove, Philippe (Nanovation)
Rogers, David J. (Nanovation)

Date:	2019
Abstract:	The use of ultra-wide bandgap transparent conducting beta gallium oxide (β-GaO) thin films as electrodes in ferroelectric solar cells is reported. In a new material structure for energy applications, we report a solar cell structure (a light absorber sandwiched in between two electrodes - one of them - transparent) which is not constrained by the Shockley-Queisser limit for open-circuit voltage (V) under typical indoor light. The solar blindness of the electrode enables a record-breaking bulk photovoltaic effect (BPE) with white light illumination (general use indoor light). This work opens up the perspective of ferroelectric photovoltaics which are not subject to the Shockley-Queisser limit by bringing into scene solar-blind conducting oxides.
Grants:	Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-579 Ministerio de Economía y Competitividad ENE2015-74275-JIN Ministerio de Economía y Competitividad SEV-2017-0706
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Subject:	Ultra-wide bandgap semiconductors ; Transparent conducting oxide ; Gallium oxide ; Ga2O3 ; Ferroelectric photovoltaics ; Pb(Zr,Ti)O3 ; Bulk photovoltaic effect ; Solar cell architecture
Published in:	Materials today energy, Vol. 14 (December 2019) , art. 100350, ISSN 2468-6069

DOI: 10.1016/j.mtener.2019.100350

Preprint 36 p, 830.9 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles