화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션)
권호 20권 1호
발표분야 (국제협력)우수 외국인 연구자 세션
제목 Effect of improved TiO2/FTO interface and surface modification via cocatalyst for a highly efficient and stable 3D Ni(OH)2/CdS/ZnIn2S4/TiO2 heterojunction
초록 A simple and effective strategy was used to fundamentally improve the performance of a heterostructuredNi(OH)2/CdS/ZnIn2S4/TiO2 photoanode. TiO2 nanorods grown hydrothermally on fluorine-doped tin oxide (FTO) were annealed at 500°C. The annealing effect minimized the defects in TiO2 grain boundaries and also aids to enhance the interface between the FTO and TiO2 nanorods for efficient electron transport. The stepwise introduction of ZnIn2S4 and CdS on annealed TiO2 improved both the absorption in the visible spectrum range and electron/hole separation in CdS/ZnIn2S4/TiO2. Additionally, the Ni(OH)2 co-catalyst can acts as effective hole trapping sites and improved the stability of the photoelectrode through the timely consumption of the photogenerated charges, particularly the holes.
저자 MAHADIK MAHADEO ABASAHEB1, Pravin S. Shinde1, 이현휘2, 조민1, 장점석1
소속 1전북대, 2포항가속기 (연)
키워드 Annealed TiO2 nanorods; Ni(OH)2cocatalyst; CdS/ZnIn2S4/TiO2 heterostructure
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