Evaluation of electroless pt deposition and electron beam Pt evaporation on p-GaAs as a photocathode for hydrogen evolution

Keorock Choi, Kyunghwan Kim, In Kyu Moon, Ilwhan Oh, Jungwoo Oh

Research output: Contribution to journalArticle

3 Citations (Scopus)


This study examines the changes in the photoelectrochemical (PEC) properties with Pt morphology after wet (electroless Pt deposition) and dry (e-beam Pt evaporation) deposition of Pt on p-GaAs. The Pt morphology and composition of the p-GaAs surface differed depending on the Pt deposition method, which in turn affected the optical and PEC properties of Pt on the GaAs electrode. Thus, the findings of this study can help us gain a clearer understanding of the manner in which these changes affect the operation of a GaAs PEC water-splitting electrode.

Original languageEnglish
Pages (from-to)770-776
Number of pages7
JournalACS Applied Energy Materials
Issue number1
Publication statusPublished - 2019 Jan 28


All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Chemical Engineering (miscellaneous)
  • Electrochemistry
  • Materials Chemistry
  • Electrical and Electronic Engineering

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