Recent Advances on Small Band Gap Semiconductor Materials (≤2.1 eV) for Solar Water Splitting

The conversion of solar energy into renewable H<sub>2</sub> fuel via photoelectrochemical and photocatalytic water splitting approaches has attracted considerable attention due to its potential to solve significant energy and environmental issues. To achieve reasonable energy conversion...

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Main Authors: Hefeng Zhang, Jiaqi Liu, Ting Xu, Wenqian Ji, Xu Zong
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Catalysts
Subjects:
Online Access:https://www.mdpi.com/2073-4344/13/4/728
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author Hefeng Zhang
Jiaqi Liu
Ting Xu
Wenqian Ji
Xu Zong
author_facet Hefeng Zhang
Jiaqi Liu
Ting Xu
Wenqian Ji
Xu Zong
author_sort Hefeng Zhang
collection DOAJ
description The conversion of solar energy into renewable H<sub>2</sub> fuel via photoelectrochemical and photocatalytic water splitting approaches has attracted considerable attention due to its potential to solve significant energy and environmental issues. To achieve reasonable energy conversion efficiency of 10%, which is amenable to the economic feasibility of this technology, semiconductor materials, which are the main carrier for solar H<sub>2</sub> production, must fulfill several important criteria. One of the most important criteria is the band gap of the semiconductor material, which should be low enough to allow the efficient absorption of incident light. This is because the band gap of semiconductor material fundamentally determines the upper limit of the theoretical energy conversion efficiency of the solar conversion system. In this work, recent advances in utilizing semiconductor material with a band gap smaller than 2.1 eV instead of the simply-defined visible-light-responsive semiconductor materials toward solar H<sub>2</sub> production from water splitting was reviewed.
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spelling doaj.art-18886a5ba0194b5f9f16defae48f3ac52023-11-17T18:41:44ZengMDPI AGCatalysts2073-43442023-04-0113472810.3390/catal13040728Recent Advances on Small Band Gap Semiconductor Materials (≤2.1 eV) for Solar Water SplittingHefeng Zhang0Jiaqi Liu1Ting Xu2Wenqian Ji3Xu Zong4Marine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, ChinaThe conversion of solar energy into renewable H<sub>2</sub> fuel via photoelectrochemical and photocatalytic water splitting approaches has attracted considerable attention due to its potential to solve significant energy and environmental issues. To achieve reasonable energy conversion efficiency of 10%, which is amenable to the economic feasibility of this technology, semiconductor materials, which are the main carrier for solar H<sub>2</sub> production, must fulfill several important criteria. One of the most important criteria is the band gap of the semiconductor material, which should be low enough to allow the efficient absorption of incident light. This is because the band gap of semiconductor material fundamentally determines the upper limit of the theoretical energy conversion efficiency of the solar conversion system. In this work, recent advances in utilizing semiconductor material with a band gap smaller than 2.1 eV instead of the simply-defined visible-light-responsive semiconductor materials toward solar H<sub>2</sub> production from water splitting was reviewed.https://www.mdpi.com/2073-4344/13/4/728solar energysemiconductorband gaphydrogenwater splitting
spellingShingle Hefeng Zhang
Jiaqi Liu
Ting Xu
Wenqian Ji
Xu Zong
Recent Advances on Small Band Gap Semiconductor Materials (≤2.1 eV) for Solar Water Splitting
Catalysts
solar energy
semiconductor
band gap
hydrogen
water splitting
title Recent Advances on Small Band Gap Semiconductor Materials (≤2.1 eV) for Solar Water Splitting
title_full Recent Advances on Small Band Gap Semiconductor Materials (≤2.1 eV) for Solar Water Splitting
title_fullStr Recent Advances on Small Band Gap Semiconductor Materials (≤2.1 eV) for Solar Water Splitting
title_full_unstemmed Recent Advances on Small Band Gap Semiconductor Materials (≤2.1 eV) for Solar Water Splitting
title_short Recent Advances on Small Band Gap Semiconductor Materials (≤2.1 eV) for Solar Water Splitting
title_sort recent advances on small band gap semiconductor materials ≤2 1 ev for solar water splitting
topic solar energy
semiconductor
band gap
hydrogen
water splitting
url https://www.mdpi.com/2073-4344/13/4/728
work_keys_str_mv AT hefengzhang recentadvancesonsmallbandgapsemiconductormaterials21evforsolarwatersplitting
AT jiaqiliu recentadvancesonsmallbandgapsemiconductormaterials21evforsolarwatersplitting
AT tingxu recentadvancesonsmallbandgapsemiconductormaterials21evforsolarwatersplitting
AT wenqianji recentadvancesonsmallbandgapsemiconductormaterials21evforsolarwatersplitting
AT xuzong recentadvancesonsmallbandgapsemiconductormaterials21evforsolarwatersplitting