Wafer-scale transferable molybdenum disulfide thin-film catalysts for photoelectrochemical hydrogen production

Ki Chang Kwon, Seokhoon Choi, Kootak Hong, Cheon Woo Moon, Young Seok Shim, Do Hong Kim, Taemin Kim, Woonbae Sohn, Jong Myeong Jeon, Chul Ho Lee, Ki Tae Nam, Seungwu Han, Soo Young Kim, Ho Won Jang

Research output: Contribution to journalArticlepeer-review

125 Citations (Scopus)

Abstract

We demonstrate that wafer-scale, transferable, and transparent thin-film catalysts based on MoS2, which consists of cheap and earth abundant elements, can provide a low onset potential of 1 mA cm-2 at 0.17 V versus a reversible hydrogen electrode and the high photocurrent density of 24.6 mA cm-2 at 0 V for a p-type Si photocathode. c-Domains with vertically stacked (100) planes in the transferable 2H-MoS2 thin films, which are grown via a thermolysis method, act as active sites for the hydrogen evolution reaction, and photogenerated electrons are efficiently transported through the n-MoS2/p-Si heterojunction.

Original languageEnglish
Pages (from-to)2240-2248
Number of pages9
JournalEnergy and Environmental Science
Volume9
Issue number7
DOIs
Publication statusPublished - 2016 Jul

ASJC Scopus subject areas

  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Pollution

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