Effect of a Polymeric Protective Coating on Optical and Electrical Properties of Poly(p-phenylene vinylene) Derivatives

被引：0
|
作者：
Goncalves, V. C. [1 ]
Olivati, C. A. [2 ]
Carvalho, A. J. F. [3 ]
Balogh, D. T. [1 ]
机构：
[1] Univ Sao Paulo, IFSC, BR-13566590 Sao Carlos, SP, Brazil
[2] Unesp Presidente Prudente, FCT, BR-19060900 Presidente Prudente, SP, Brazil
[3] Univ Sao Paulo, EESC, Dept Engn Mat, BR-13566590 Sao Carlos, SP, Brazil
来源：
JOURNAL OF NANOMATERIALS | 2013年 / 2013卷
基金：
巴西圣保罗研究基金会;
关键词：
LIGHT-EMITTING DEVICES; PHOTOOXIDATION; PPV; DEGRADATION; STABILITY; FILMS; LAYER;
D O I：
10.1155/2013/160464
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The resistance to photodegradation of poly[(2-methoxy-5-n-hexyloxy)-p-phenylene vinylene] (OC1OC6-PPV) films was significantly enhanced by the use of poly(vinyl alcohol) 99% hydrolyzed as protective coating. The deposition of poly(vinyl alcohol) onto OC1OC6-PPV films did not affect the absorption and the emission spectra of the luminescent polymer. The protected film showed 5% drop on the absorbance at 500 nm after 270 hours of light exposure while the unprotected film completely degraded in the same conditions. The conductivity of the protected film remained stable (around 7 x 10(-10) S/m) while the value for the unprotected one dropped around two orders of magnitude after 100 hours of light exposure.
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页数：5
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