Organic host-guest systems for blue emission

被引：8
|
作者：
Bongiovanni, G
Botta, C
Communal, JE
Cordella, F
Magistrelli, L
Mura, A
Patrinoiu, G
Picouet, P
Di-Silvestro, G
机构：
[1] CNR, Ist Studio Macromol, I-20133 Milan, Italy
[2] Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, Ca, Italy
[3] Univ Milan, Dipartimento Chim Organ & Ind, I-20133 Milan, Italy
来源：
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2003年 / 23卷 / 6-8期
关键词：
host-guest systems; energy transfer; time-resolved photoluminescence;
D O I：
10.1016/j.msec.2003.09.098
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The photoluminescence (PL) quantum yields (QYs) and lifetimes of the 1,6-diphenyl-1,3,5-hexatriene (DPH) blue emitter and of the acceptor-donor system, DPH and p-terphenyl (P3), are investigated embedded in the nanochannels of a perhydrotriphenylene (PHTP) matrix. In the co-inclusion system, light emission takes place from DPH, due to the efficient resonant energy transfer (RET) from the P3 donor molecules. The host matrix stabilizes the guest molecules against photooxidation degradation. The largest quantum yield, up to 100%, has been found in the co-inclusion compound (IC), where excitations are localized at the emissive acceptor sites. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：909 / 912
页数：4
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