合成了一种新的含6,12-二氢二茚并[1,2-b; 1',2'-e]吡嗪供体和苯并三唑受体的供体-受体(DA)共聚物(PIPY-DTBTA),并对其进行了表征。应用在有机场效应晶体管(OFET),聚合物太阳能电池(PSC)和聚合物发光二极管(PLED)中。该聚合物具有高分子量,出色的成膜能力,深的HOMO能级和良好的溶液加工性。基于该聚合物的溶液处理的薄膜OFET显示出良好的p型特性,具有高达0.0521cm 2 V -1 s -1的高空穴迁移率。包含该聚合物和PC 61的本体异质结PSCBM的功率转换效率(PCE)为0.77%。基于PIPY-DTBTA的单层PLED在6 V的开启电压下发出黄红色的光,最大亮度为385 cd m -2。
New blue-violet emitters based on an indenopyrazine core for OLEDs: Effects of the position of m-terphenyl side group substitution on optical and electroluminescence properties
作者:Youngil Park、Sookang Kim、Ji-Hoon Lee、Dong Hyun Jung、Chung-Chih Wu、Jongwook Park
DOI:10.1016/j.orgel.2010.01.030
日期:2010.5
m-terphenyl side groups in the ortho, meta, or para positions. There are larger blue shifts in the UV–visible absorption and PL spectra of the synthesized ortho- and para-substituted derivatives than in those of the meta-substituted derivative. Molecular calculations verified that these differences are due to the variation in the π-conjugation length of the derivatives with the position at which the