| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_에너지저장·변환 |
| 제목 |
Fabrication of CuxS-covered Cu(In,Ga)(S,Se)2 photocathode for photocatalytic H2 evolution |
| 초록 |
CuxS-covered Cu(In,Ga)(S,Se)2 (CIGSSe) film was synthesized through cost-effective solution process. The chalcogenization consisting of simultaneous selenization and sulfurization followed by additional sulfurization using Cu-rich precursor film resulted in the naturally formed CuxS phase at the CIGSSe film surface. In addition, the formation of CuxS phase increased S content of CIGSSe film. The catalytic activity of CuxS for hydrogen evolution reaction from water was demonstrated in dark condition. Furthermore, increase in S content lowered valence band maximum of CIGSSe resulting in anodic shift of onset potential. The highest photocurrent density of 11 mA∙cm-2 at 0 VRHE under 1.5 AM illumination was achieved from a CIGSSe photocathode in an absence of any n-type overlayer and electrocatalyst. |
| 저자 |
김병우, 민병권, 이동기
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| 소속 |
한국과학기술(연) |
| 키워드 |
Cu(In; Ga)(S; Se)2; photocathode; solar-water splitting
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| E-Mail |
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