Synthesis and characterization of thieno-isoindigo derivative-based near-infrared conjugated polymer for ambipolar field-effect transistors and photothermal conversion
作者:Guobing Zhang、Yanrong Dai、Dong Wang、Yu Liu、Hongbo Lu、Longzhen Qiu、Kilwon Cho
DOI:10.1016/j.dyepig.2017.07.073
日期:2017.12
designed and synthesized. A donor−acceptor conjugated polymer (PBTPDI-TT) was also synthesized with this new unit as the acceptor and thieno[3,2-b]thiophene as the donor. The microstructure, photophysical, electrochemical, field-effect properties and photothermal performances were investigated. The polymer showed a broad absorption spectrum that spanned across the near-infrared (NIR) region (780–1300 nm)
一种新的硫杂-异靛蓝衍生物,(3 E,7 E)-3,7-双(4-(2-癸基十四烷基)-4 H-硫杂[3,2 - b ]吡咯-5,6-二酮)-5设计合成了7,7-二氢吡咯并[2,3- f ]吲哚-2,6(1 H,3 H)-二酮(BTPDI)。还合成了一个供体-受体共轭聚合物(PBTPDI-TT),该新单元作为受体和噻吩并[3,2- b]噻吩作为供体。研究了其微观结构,光物理,电化学,场效应性质和光热性能。该聚合物在近红外(NIR)区域(780-1300 nm)处显示出较宽的吸收光谱,具有非常低的带隙(〜0.95 eV),很深的最低未占据分子轨道和合适的最高占据分子轨道能级。结果,基于聚合物的有机场效应晶体管显示出高度平衡的空穴和电子传输特性,空穴迁移率为0.027 cm 2 V -1 s -1和电子迁移率为0.022 cm 2 V -1 s -1。该聚合物纳米粒子在近红外(980 nm)