CAJ | 학술논문

研究了不同组成PVK和P6共混材料薄膜的光吸收特性和光致发光特性．用不同比例PVK∶P6共混材料为发光层和Alq3为电子传输层合成双层结构的蓝光器件，测量器件的电致发光谱、电流-电压特性和亮度-电压特性．结果表明，共混材料的光致发光强度比PVK和P6都有明显的增强，且随PVK浓度的增加而增强；器件电致发光强度随PVK浓度的增加而增强；不同PVK掺杂浓度对电致发光器件的开启特性没有明显影响，发光亮度随PVK掺杂浓度的增加而增大．
연구료불동조성PVK화P6공혼재료박막적광흡수특성화광치발광특성．용불동비례PVK∶P6공혼재료위발광층화Alq3위전자전수층합성쌍층결구적람광기건，측량기건적전치발광보、전류-전압특성화량도-전압특성．결과표명，공혼재료적광치발광강도비PVK화P6도유명현적증강，차수PVK농도적증가이증강；기건전치발광강도수PVK농도적증가이증강；불동PVK참잡농도대전치발광기건적개계특성몰유명현영향，발광량도수PVK참잡농도적증가이증대．
The optical absorption properties and photoluminescence properties of different PVK∶P6 polymer blend films are reported．Several kinds of bilayer blue-emission electroluminescent devices are fabricated with Alq3 as electron transport layer and different PVK∶P6 polymer blends as light-emitting layer，and the electroluminescence spectra，current-voltage characteristics and luminance-voltage characteristics of the devices are investigated．The results show distinct enhancement of the fluorescence intensity of polymer blends compared with that of the pure PVK or P6．The electroluminescence intensity and the luminance has proved to increase with the dopant PVK concentration，which has no effect on the threshold voltage．