Two covalently linked triisopropylsilyl-ethynylated phenazinothiadiazoles were prepared through condensation of a spirocyclic and a bicyclic tetraketone with a 5,6-diaminobenzothiadiazole. The spirobisindene- and the ethanoanthracene-based linkers render the electron acceptors amorphous in thin films. The optoelectronic properties of the non-conjugated dimers are indistinguishable from that of the crystalline monomer. Bulk heterojunction solar cells were prepared with power conversion efficiencies peaking at 1.6%. The choice of linker neither influenced optical and electrochemical properties nor device performance.

中文翻译：

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本体异质结太阳能电池中的二聚苯并非噻二唑受体

通过将螺环和双环四酮与5,6-二氨基苯并噻二唑缩合来制备两个共价连接的三异丙基甲硅烷基-乙炔基化的苯并氮杂二唑。基于螺双茚和基于蒽蒽的接头使电子受体在薄膜中为非晶态。非共轭二聚体的光电子性质与结晶单体的光电子性质没有区别。制备体异质结太阳能电池，其功率转换效率峰值为1.6％。接头的选择既不影响光学和电化学性质，也不影响器件性能。