Single-walled carbon nanotube-CdS nanocomposites as light-harvesting assemblies: Photoinduced charge-transfer interactions

被引:446
作者
Robel, I
Bunker, BA
Kamat, PV [1 ]
机构
[1] Univ Notre Dame, Radiat Lab, Notre Dame, IN 46556 USA
[2] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA
[3] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA
[4] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
关键词
D O I
10.1002/adma.200500418
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Deposition of CdS nanoparticles on SWCNTs produces a photoactive composite that undergoes charge transfer interactions following excitation with visible light (see Figure). The transient bleaching recovery in approximately 200 ps confirms quick deactivation of excited CdS on the SWCNT surface. Visible excitation of the CdS-SWCNT film produces a photocurrent and thus provides evidence for the electron-transfer pathway in the composite.
引用
收藏
页码:2458 / +
页数:7
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