Forster energy transfer from blue-emitting polymers to colloidal CdSe/ZnS core shell quantum dots

被引:130
作者
Anni, M
Manna, L
Cingolani, R
Valerini, D
Cretí, A
Lomascolo, M
机构
[1] Univ Lecce, Dipartimento Ingn Innovaz, INFM, NNL, I-73100 Lecce, Italy
[2] Ist Microelecttron & Microsistemi, I-73100 Lecce, Italy
[3] ISUFI, I-73100 Lecce, Italy
关键词
D O I
10.1063/1.1814795
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have studied the interactions in the solid phase between a blue-light-emitting organic conjugated polymer {poly[(9,9-dihexylfluorenyl-2,7-diyl)-alt-co-(9,ethyl-3,6-carbazole)]} and colloidal CdSe/ZnS core shell quantum dots. We demonstrate by time resolved photoluminescence measurements that efficient Forster energy transfer takes place from the polymer acting as the donor and the CdSe/ZnS dots, acting as the acceptors. A Forster radius of about 80+/-15 Angstrom is extracted from the analysis of the relaxation dynamics based on the solution of the donor-acceptor coupled rate equations. This value is in good agreement with the value extracted from the steady state spectra and indicates that efficient energy tranfer from a polymeric host to a nanocrystal guest can occur. Our results are relevant to the application of hybrid organic/inorganic systems to light-emitting devices. (C) 2004 American Institute of Physics.
引用
收藏
页码:4169 / 4171
页数:3
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