Giant bulk photovoltaic effect in solar cell architectures with ultra-wide bandgap Ga<inf>2</inf>O<inf>3</inf> transparent conducting electrodes

Publication Type:
Journal Article
Citation:
Materials Today Energy, 2019, 14
Issue Date:
2019-12-01
Filename Description Size
1-s2.0-S2468606919302060-main.pdfPublished Version1.78 MB
Adobe PDF
Full metadata record
© 2019 Elsevier Ltd The use of ultra-wide bandgap transparent conducting beta gallium oxide (β-Ga2O3) 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 (Voc) 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.
Please use this identifier to cite or link to this item: