Medium Band Gap Conjugated Polymers from Thienoacene Derivatives and Pentacyclic Aromatic Lactam as Promising Alternatives of Poly(3- hexylthiophene) in Photovoltaic Application
Medium Band Gap Conjugated Polymers from Thienoacene Derivatives and Pentacyclic Aromatic Lactam as Promising Alternatives of Poly(3- hexylthiophene) in Photovoltaic Application
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噻吩并苯衍生物和五环芳香内酰胺的中带隙共轭聚合物作为聚（3-己基噻吩）在光伏应用中的有前景的替代品
DOI：
10.1002/pola.28874
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通讯作者：
Xia Yangjun
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作者：
Gao Peili;Tong JUnfeng;Guo Pengzhi;Li Jianfeng;Wang Ningning;Li Cheng;Ma Xuying;Zhang Peng;Wang Chenglong;Xia Yangjun
两个交替的中等带隙共轭聚合物。（PBDT-TPTI和PDTBDT-TPTI）衍生自4，8-双（4，5-二辛基噻吩-2-基）苯并[1，2-B：4，5-b 0]二噻吩（BDT-T）或5，10-双（4，5-二癸基噻吩-2-基）二噻吩并[2，3-d：20，30-d 0]苯并[1，2-B：4，5-b 0]二噻吩（DTBDT-T）与N，N-双十二烷基噻吩并[20，30：5，6]吡啶并[3，4-g]噻吩并[3，2-c]-异喹啉-5，11-二酮（TPTI）的合成和表征。对共聚物的光稳定性的比较研究表明，PDTBDT-TPTI膜具有与P3 HT相当的光稳定性。同时，以聚[（9，9-双（30-.（N，N-二甲基氨基）丙基）-2，7-芴）-alt-2，7-（9，9-二辛基芴）]用作阴极改性中间层，在300 ~ 650 nm的光电流响应范围内，P3 HT/P3 H2 O2的光电转换效率分别为5.98%和6.05%，而最佳的反相PVC的光电转换效率为4.48%。PC 71 BM在AM 1.5 G 100 mW/cm 2下。当ITIC用作电子受体材料时，PBDT-TPTI和PDTBDT-TPTI制备的i-PVC的光电转换效率分别提高到7.58%和6.91%，而P3 HT制备的i-PVC的光电转换效率仅为0.02%。结果表明，PBDT-TPTI和.PDTBDT-TPTI可作为显著的. P3 HT在光伏应用中的有前途的替代物。
Two alternating medium band gap conjugated polymers.(PBDT-TPTI and PDTBDT-TPTI) derived from 4,8-bis(4,5-.dioctylthien-2-yl)benzo[1,2-b:4,5-b0]dithiophene (BDT-T) or 5,10-.bis(4,5-didecylthien-2-yl)dithieno[2,3-d:20,30-d0]benzo[1,2-b:4,5-b0].dithiophene (DTBDT-T) with pentacyclic aromatic lactam of.N,N-didodecylthieno[20,30:5,6]pyrido[3,4-g]thieno[3,2-c]-iso-quinoline-.5,11-dione (TPTI), are synthesized and characterized. The.comparative investigation of the photostabilities of the copolymers.revealed that the PDTBDT-TPTI film exhibited the comparable.photostability in relative to P3HT. Meanwhile, the inverted.photovoltaic cells (i-PVCs) from the blend films of PBDT-TPTI.and/or PDTBDT-TPTI with PC71BM, in which poly[(9,9-bis(30-.(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)].were used as cathode modifying interlayer, presented higher.power conversion efficiencies (PCEs) of 5.98% and 6.05% with.photocurrent response ranging from 300 nm to 650 nm in.contrast with the PCEs of 4.48% for the optimal inverted PVCs.from P3HT/PC71BM under AM 1.5 G 100 mW/cm2. The PCEs of.the i-PVCs from PBDT-TPTI and PDTBDT-TPTI were improved to.7.58% and 6.91% in contrast to that of 0.02% for the P3HT-based.i-PVCs, and the photocurrent responses of the devices were.extended to 300–792 nm, when the ITIC was used as electron.acceptor materials. The results indicate that the PBDT-TPTI and.PDTBDT-TPTI can be used as the promising alternatives of notable.P3HT in the photovoltaic application.