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Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

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Benchmark performance of low-cost Sb2Se3 photocathodes for unassisted solar overall water splitting

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dc.contributor.author Yang, Wooseok ko
dc.contributor.author Kim, Jin Hyun ko
dc.contributor.author Hutter, Oliver S. ko
dc.contributor.author Phillips, Laurie J. ko
dc.contributor.author Tan, Jeiwan ko
dc.contributor.author Park, Jaemin ko
dc.contributor.author Lee, Hyungsoo ko
dc.contributor.author Major, Jonathan D. ko
dc.contributor.author Lee, Jae Sung ko
dc.contributor.author Moon, Jooho ko
dc.date.available 2020-04-09T10:27:52Z -
dc.date.created 2020-04-02 ko
dc.date.issued 2020-02 ko
dc.identifier.citation NATURE COMMUNICATIONS, v.11, no.1, pp.861 ko
dc.identifier.issn 2041-1723 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/31886 -
dc.description.abstract Determining cost-effective semiconductors exhibiting desirable properties for commercial photoelectrochemical water splitting remains a challenge. Herein, we report a Sb2Se3 semiconductor that satisfies most requirements for an ideal high-performance photoelectrode, including a small band gap and favourable cost, optoelectronic properties, processability, and photocorrosion stability. Strong anisotropy, a major issue for Sb2Se3, is resolved by suppressing growth kinetics via close space sublimation to obtain high-quality compact thin films with favourable crystallographic orientation. The Sb2Se3 photocathode exhibits a high photocurrent density of almost 30mAcm(-2) at 0V against the reversible hydrogen electrode, the highest value so far. We demonstrate unassisted solar overall water splitting by combining the optimised Sb2Se3 photocathode with a BiVO4 photoanode, achieving a solar-to-hydrogen efficiency of 1.5% with stability over 10h under simulated 1 sun conditions employing a broad range of solar fluxes. Low-cost Sb2Se3 can thus be an attractive breakthrough material for commercial solar fuel production. While photoelectrochemical water splitting offers an integrated means to convert sunlight to a renewable fuel, cost-effective light-absorbers are rare. Here, authors report Sb2Se3 photocathodes for high-performance photoelectrochemical water splitting devices. ko
dc.language 영어 ko
dc.publisher NATURE PUBLISHING GROUP ko
dc.title Benchmark performance of low-cost Sb2Se3 photocathodes for unassisted solar overall water splitting ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85079339788 ko
dc.identifier.wosid 000514928000002 ko
dc.type.rims ART ko
dc.identifier.doi 10.1038/s41467-020-14704-3 ko
dc.identifier.url https://www.nature.com/articles/s41467-020-14704-3 ko
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