| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
우수논문(구두)_박사과정 |
| 제목 |
Morphology Control of Mesoporous WO3 and Insight into Charge Separation Behavior of WO3/BiVO4 Heterojunction for Solar Water Splitting |
| 초록 |
Globally, the WO3/BiVO4 has proven that it would be a promising approach for photoelectrochemical (PEC) water splitting activity due to its charge transfer and light absorption capability. Herein, we investigated the formation of different WO3 morphology through the utilization of amphiphilic graft copolymer template, which is controlled by tuning the interactions in the polymer/sol−gel hybrid. The PEC performance of the WO3 mesoporous photoanodes with various morphologies and the individual heterojunctions with BiVO4 (WO3/BiVO4) were characterized by measuring the photocurrents in the absence/presence of hole scavengers using light absorption spectroscopy and intensity-modulated photocurrent spectroscopy. The morphology of the WO3 photoanode directly influenced the charge separation efficiency within the WO3 layer and concomitant charge collection efficiency in the WO3/BiVO4 heterojunction. |
| 저자 |
이창수1, 김진규1, 황윤정2, 김종학1
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| 소속 |
1연세대, 2한국과학기술(연) |
| 키워드 |
WO3; BiVO4; graft copolymer; water splitting
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| E-Mail |
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