Polymer solar cells with an inverted device configuration using polyhedral oligomeric silsesquioxane-[60]fullerene dyad as a novel electron acceptor
Polymer solar cells with an inverted device configuration using polyhedral oligomeric silsesquioxane-[60]fullerene dyad as a novel electron acceptor
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DOI：
10.1007/s11426-011-4422-8
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发表时间：
2012-02
期刊：
影响因子：
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通讯作者：
Wen‐Bin Zhang;Y. Tu;Hao-Jan Sun;K. Yue;X. Gong;Stephen Z. D. Cheng
中科院分区：
文献类型：
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作者：
Wen‐Bin Zhang;Y. Tu;Hao-Jan Sun;K. Yue;X. Gong;Stephen Z. D. Cheng
设计了一种多面体低聚倍半硅氧烷-[60]富勒烯(POSS-C60)作为新型电子受体，用于体异质结(BHJ)聚合物太阳电池(PSCs)。对poly[(4，4′-bis(2-ethylhexyl)dithieno[3，2-b:2′，3′-d]silole)-2，6-diyl-alt-(4，7-bis(2-thienyl)-2，1，3-benzothiadiazole)-5，5′-diyl]原始薄膜(SiPCPDTBT)和SiPCPDTBT：POSS-C60复合薄膜的时间分辨光诱导吸收的研究表明，SiPCPDTBT向POSS-C60的电子转移是有效的，但反向转移受到抑制。由SiPCPDTBT和POSS-C60混合制成的BHJ PSCs的功率转换效率(PCE)为1.50%。在相同的操作条件下，SiPCPDTBT与[6，6]-苯基-C61-丁酸甲酯混合制成的BHJ PSCs的PCEs为0.92%。这些结果表明POSS-C60是一种潜在的良好的BHJ PSCs的电子受体。
A polyhedral oligomeric silsesquioxane-[60]fullerene (POSS-C60) dyad was designed and used as a novel electron acceptor for bulk heterojunction (BHJ) polymer solar cells (PSCs) with an inverted device configuration. The studies of time-resolved photoinduced absorption of the pristine thin film of poly[(4,4′-bis(2-ethylhexyl)dithieno[3,2-b:2′,3′-d]silole)-2,6-diyl-alt-(4,7-bis (2-thienyl)-2,1,3-benzothiadiazole)-5,5′-diyl] (SiPCPDTBT) and the composite thin film of SiPCPDTBT:POSS-C60indicated efficient electron transfer from SiPCPDTBT to POSS-C60with inhibited back-transfer. BHJ PSCs made by SiPCPDTBT mixed with POSS-C60yielded the power conversion efficiencies (PCEs) of 1.50%. Under the same operational conditions, PCEs observed from BHJ PSCs made by SiPCPDTBT mixed with [6,6]-phenyl-C61-butyric acid methyl ester were 0.92%. These results demonstrated that POSS-C60is a potentially good electron acceptor for inverted BHJ PSCs.