Preparation of a CuGaSe2 single crystal and its photocathodic properties
Bibliographic Information
- Other Title
-
- Preparation of a CuGaSe<sub>2</sub>single crystal and its photocathodic properties
Description
Chalcopyrite CuGaSe2 single crystals were successfully synthesized by the flux method using a home-made Bridgman-type furnace. The grown crystals were nearly stoichiometric with a Se-poor composition. Although a wafer form of the thus-obtained single crystal showed poor p-type electrical properties due to such unfavorable off-stoichiometry, these properties were found to be improved by applying a post-annealing treatment under Se vapor conditions. As a result, an electrode derived from the Se-treated single crystalline wafer showed appreciable p-type photocurrents. After deposition of a CdS ultrathin layer and a nanoparticulate Pt catalyst on the surface of the electrode, appreciable photoelectrochemical H2 evolution was observed over the modified electrode under photoirradiation by simulated sunlight with application of a bias potential of 0 VRHE.
Journal
-
- RSC Advances
-
RSC Advances 10 (66), 40310-40315, 2020
Royal Society of Chemistry (RSC)
- Tweet
Details 詳細情報について
-
- CRID
- 1050287684992327552
-
- NII Article ID
- 120006936343
-
- ISSN
- 20462069
-
- HANDLE
- 2433/259366
-
- Text Lang
- en
-
- Article Type
- journal article
-
- Data Source
-
- IRDB
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE