A meso-substituted zinc-porphyrin embedded in a polydiacetylene web was prepared and tested for its potential in bulk heterojunction solar cells (BHJ-SCs). Light assisted formation of the polyenynes from diacetylenes coupled to the meso-position of the porphyrin were observed after UV-radiation, as evidenced by double and triple bond Raman-bands at 1446 and 2080 cm−1, respectively, and via UV absorption enhancement at 530–600 nm. Using cyclic voltammetry, Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO) energy levels were determined to be in an appropriate range for the photoactive materials in BHJ-SCs. Indeed, photoluminescence quenching indicated energy and/or charge transfer when the target material was used as a donor in combination with phenyl-C61-butyric acid methyl ester as acceptor in a blend. A photovoltaic effect of the BHJ-SCs was observed.
研究人员制备了嵌入聚二
乙炔网的中位取代
锌卟啉,并测试了其在体异质结太阳能电池(BHJ-SC)中的应用潜力。在紫外线照射后,观察到由二
乙炔与
卟啉的介位耦合形成的光辅助聚烯炔,分别在 1446 和 2080 cm-1 处的双键和三键拉曼带以及 530-600 nm 处的紫外线吸收增强证明了这一点。利用循环伏安法,最高占位分子轨道(HOMO)和最低未占位分子轨道(LUMO)能级被确定在 BHJ-SC 中光活性材料的适当范围内。事实上,当目标材料作为供体与苯基-C61-
丁酸甲酯作为受体混合使用时,光致发光淬灭表明了能量和/或电荷转移。BHJ-SCs 具有光伏效应。