Photovoltaic and photoconductive properties of styrene–nonyl-methacrylate copolymer and poly(N-epoxypropylcarbazole) film composites doped with the tetranuclear metal complex Cu₄L₄(OCH₃)₄ (L^– = N,N′-dibenzyl-N″-trichloroacetyltriamidophosphate) and a sensitizer, i.e., an organic compound with intramolecular charge transfer, were investigated. It was found that these composites had hole-type photoconductivity in the visible spectral range. The internal photoelectric effect was determined by the photogeneration of charge carriers from the metal complex and sensitizer. The kinetics of formation and relaxation of photogenerated charge carriers were studied using ESR. It was concluded that metal-complex molecules in the polymer composite increased the efficiency of photogeneration of nonequilibrium charge carriers and affected the composite photovoltaic properties.

中文翻译：

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四核铜配合物的聚合物复合材料的光伏性能

掺有四核金属配合物Cu ₄ L ₄（OCH ₃）₄（L ^–的苯乙烯-甲基丙烯酸壬基酯共聚物和聚（N-环氧丙基咔唑）薄膜复合材料的光电性能＝ N，N′-二苄基-N″-三氯乙酰基三酰胺磷酸）和敏化剂，即具有分子内电荷转移的有机化合物。发现这些复合材料在可见光谱范围内具有空穴型光电导性。内部光电效应取决于金属络合物和敏化剂中载流子的光生。使用ESR研究了光生载流子形成和弛豫的动力学。结论是，聚合物复合物中的金属络合物分子提高了非平衡电荷载体的光生效率并影响了复合物的光伏性能。