2011年8月
Efficient energy transfer from hole transporting materials to CdSe-core CdS/ZnCdS/ZnS-multishell quantum dots in type II aligned blend films
APPLIED PHYSICS LETTERS
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- 巻
- 99
- 号
- 9
- 開始ページ
- 093106-1-3
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1063/1.3633110
- 出版者・発行元
- AMER INST PHYSICS
We studied the energy transfer between CdSe core/shell quantum dots (QDs) and hole transporting materials (HTMs) in type II aligned inorganic/organic blend films by using steady-state and time-resolved photoluminescence (PL) spectroscopy. The lengthening and shortening in PL lifetimes of the QDs in HTMs under resonant excitation condition were explained by energy transfer and charge separation processes. Surprisingly, the maximum energy transfer efficiency from 4,4',4 ''-Tris (carbazol-9-yl)-triphenylamine (TcTa) to CdSe/CdS/ZnCdS/ZnS core/multishell QDs was determined to be 86% by calculating the excited state lifetime of the TcTa molecules participating in the energy transfer process. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3633110]
- リンク情報
- ID情報
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- DOI : 10.1063/1.3633110
- ISSN : 0003-6951
- Web of Science ID : WOS:000294489300062