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 journalArticlepeer-review

4 Citations (Scopus)

Abstract

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
Volume2
Issue number1
DOIs
Publication statusPublished - 2019 Jan 28

Bibliographical note

Funding Information:
This research was supported by the Ministry of Science and ICT (MSIT), Korea, under the ICT Consilience Creative Program (IITP-2018-2017-0-01015) supervised by the Institute for Information and Communications Technology Promotion (IITP). This research was also supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education (NRF-2018R1D1A1B07045703). I.O. acknowledges the support from the National Research Foundation (NRF) of Korea (NRF-2016R1A2B4011046).

Publisher Copyright:
© 2018 American Chemical Society.

All Science Journal Classification (ASJC) codes

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

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