摘要
研究苯基取代的聚苯撑乙烯共聚物 Ph PPV和盘状液晶分子 HBC-Ph C1 2掺杂不同比例的酰亚胺分子 PDI体系的稳态光电流行为 .结果表明 ,PDI含量在 0 .1 %～ 1 0 %范围时 ,光生载流子的量子效率与体系的种类和掺杂剂含量无关 ;PDI含量 >1 0 %时 ,与未掺杂时相比 ,光生载流子的产率增加 2～ 3个数量级 .
Stationary photocurrrent in phenyl substituted polyphenylenevinylene (PhPPV) and hexabenzocoronene(HBC) doped by perylenediimide(PDI) in a broad range of PDI mass fractions was investigated by steady state photocurrent measurements and using thin films in a light-emitting devices sandwich structure. It is shown that at and above the moderate mass fractions the yield of the charge photogeneration carriers is almost independent of the system and the mass fractions of dopant. As PDI mass fractions >10%,the photogeneration quantum yield increases by two to three orders of magnitude by comparing with the pure system. [WT5HZ]
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第6期1128-1131,共4页
Chemical Journal of Chinese Universities
基金
国家重点基础研究发展规划项目 (批准号 :2 0 0 2 CB613 40 1)
国家自然科学基金 (批准号 :2 0 0 740 13 )资助
关键词
掺杂体系
光生载流子
光电流
Doped system
Photogeneration carriers
Photocurrent
