Photoinduced enhancement of luminescence intensity in poly (vinyl alcohol)-poly(3-thiopheneacetic acid) (PVA-PTAA) blends

被引：0
|
作者：
Souza, JM
Gobato, YG
Vercik, A
Pereira, EC [1 ]
机构：
[1] UFSCar, DQ, LIEC, CMDMC, BR-13565905 Sao Carlos, SP, Brazil
[2] UFSCar, DF, BR-13565905 Sao Carlos, SP, Brazil
[3] UFSC, BR-13565905 Sao Carlos, SP, Brazil
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2002年 / 374卷
关键词：
poly(3-thiopheneacetic acid); luminescence; blends; poly(vinyl alcohol);
D O I：
10.1080/10587250210469
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The photoluminescence (PL) behaviour of PVA-PTAA blends of different composition is investigated. It is observed that the interchain interaction have an important effect in this system leading to an unexpected decrease in the PL intensity as the PTAA content increase. An enhancement of the PL intensity as function of the time was also detected for all samples which were irradiated by laser. Using laser intensitiy of 18 W/cm(2) it was observed an increase of 93% in PVA-PTAA 1 wt% blend. Using this methodology it was possible to build an emission pattern.
引用
收藏
页码：537 / 542
页数：6
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