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다차원 탄소재료 연구단
다차원 탄소재료 연구단
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MoSx supported hematite with enhanced photoelectrochemical performance

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Title
MoSx supported hematite with enhanced photoelectrochemical performance
Author(s)
Ahn, H.-J.; Yoon, K.-Y.; Kwak, M.-J.; Lee, J.-S.; Thiyagarajan, P.; Ji-Hyun Jang
Publication Date
2015-11
Journal
JOURNAL OF MATERIALS CHEMISTRY A, v.3, no.43, pp.21444 - 21450
Publisher
ROYAL SOC CHEMISTRYROYAL SOC CHEMISTRY
Abstract
By creating a p-n heterojunction of molybdenum sulfide (MoSx)/Ti-doped Fe2O3 (Ti-Fe2O3), we successfully addressed electron-hole transfer problems of hematite and thus achieved the enhanced photoelectrochemical (PEC) performance. MoSx/Ti-Fe2O3 with a thin MoSx layer on the surface of Ti-Fe2O3 fabricated a p-n junction that provided facile charge transfer pathways due to an internal electric field between Ti-Fe2O3 and MoSx, and achieved suppressed charge recombination. The optimized MoSx/Ti-Fe2O3 sample showed a 240% increased photocurrent density (3.03 mA cm-2) over pristine Fe2O3 at RHE 1.50 V. All our data including IPCE, PL, and EIS clearly confirmed the improved PEC performance of MoSx/Ti-Fe2O3 achieved by the formation of a p-n junction with a facile electron-hole transport pathway. This journal is © The Royal Society of Chemistry
URI
https://pr.ibs.re.kr/handle/8788114/2270
ISSN
2050-7488
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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