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  • 02월 23일 15시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Photoreactivity Optimization of Ru-Complex-Sensitized TiO2 By Band-Gap Control of the Bipyridyl Ligand System: Synthesis, Characterization, their Water-Splitting Hydrogen Generation, and Dye-Sensitized Solar Cells (DSSCs) Application

등록일
2009년 2월 12일 15시 22분 42초
접수번호
1293
발표코드
37P168포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅲ>
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
한중규, 전지송1, 이수현, 민경태1, 손호진1, 고재중1, 강상욱1
고려대학교 신소재화학과, Korea
1고려대학교 소재화학과, Korea
Band-gap tunable Ru complexes of the type Ru(NCS)2L(N^N-ArX), where the ligand consist of an 2,2`-bipyridine connected at the 4,4`-position by a 4-substituted aryl functional group with X = NMe2, OMe, H, Cl, F, and CN, were prepared. The corresponding photophysical study with respect to electron-donating and withdrawing groups of the substituents showed a direct correlation between the highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO) band gaps and electronic alterations at the ligand sites. A systematic study to optimize the injection of photoexcited electrons from Ru-sensitizer to TiO2 semiconductor has been carried out throughout the tuning of LUMO level of Ru-sensitizer. Indeed, large difference in photocatalytic reactivity for hydrogen generation and photovoltaic performance of DSSCs wew observed among this series.

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