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Title | Water Splitting Photovoltaic-Photoelectrochemical GaAs/InGaAsP - WO3/BiVO4 Tandem Cell with Extremely Thin Absorber Photoanode Structure |
Authors |
Kosar, S.
Pihosh, Y. Turkevych, I. Mawatari, K. Uemura, J. Kazoe, Y. Makita, K. Sugaya, T. Matsui, T. Fujita, D. Tosa, M. Struk, Y.M. Kondo, M. Kitamori, T. |
ORCID | |
Keywords |
Photocatalysis Photovoltaics Renewable energy Nanorods Heterojunction |
Type | Conference Papers |
Date of Issue | 2015 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/42632 |
Publisher | Sumy State University |
License | Copyright not evaluated |
Citation | Water Splitting Photovoltaic-Photoelectrochemical GaAs/InGaAsP - WO3/BiVO4 Tandem Cell with Extremely Thin Absorber Photoanode Structure [Текст] / S. Kosar, Yu. Pihosh, I. Turkevych et al. // Nanomaterials: Applications & Properties (NAP-2015) : Proceedings of the International Conference. — Sumy : Sumy State University, 2015. — V.4, No1. — 01NTF01. |
Abstract |
We demonstrate highly efficient solar hydrogen generation via water splitting by photovoltaicphotoelectrochemical (PV-PEC) tandem device based on GaAs/InGaAsP (PV cell) and WO3/BiVO4 core/shell nanorods (PEC cell). We utilized extremely thin absorber (ETA) concept to design the WO3/BiVO4 core/shell heterojunction nanorods and obtained the highest efficiencies of photo-induced charge carriers generation,
separation and transfer that are possible for the WO3/BiVO4 material combination. The PV-PEC tandem shows stable water splitting photocurrent of 6.56 mA cm-2 under standard AM1.5G solar light that corresponds to the record solar-to-hydrogen (STH) conversion efficiency of 8.1%. |
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