Band-edge alignment in ultra-narrow InAs1-xSbx photocathodes enabling selective solar-driven CO2-to-liquid conversion

Journal of CO2 Utilization 2026 Open access

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Authors: Hoki Son, Seungwan Woo, Eungbeom Yeon, Hyegyeong Hwang, Eunbee Jung, Daehwan Jung, Ho Won Jang, Won Jun Choi, Jinsung Kwak
DOI: 10.1016/j.jcou.2026.103314
Cited by: 2
References: 43

Abstract

Selective photoelectrochemical CO 2 reduction technologies typically rely on wide-bandgap semiconductors, which provide sufficient photovoltage but low solar utilization. In this study, we demonstrate that the absolute band-edge alignment, rather than the bandgap size, governs CO 2 reduction selectivity in the ultra-narrow-bandgap (

Fields of Study & Subjects

CO2 Reduction Techniques and Catalysts Advanced Photocatalysis Techniques TiO2 Photocatalysis and Solar Cells

Publication details

Journal / source
Journal of CO2 Utilization
Publisher
Elsevier BV
Volume
104
Pages
103314–103314
Publication date
8 January 2026
Language
EN