https://scholars.lib.ntu.edu.tw/handle/123456789/425101
標題: | Isoindigo-dicyanobithiophene-Based Copolymer for High Performance Polymer-Fullerene Solar Cells Reaching 1.06 v Open Circuit Voltage and 8.36% Power Conversion Efficiency | 作者: | Liao, Song Fu Chen, Chin Ti CHI-YANG CHAO |
公開日期: | 19-九月-2017 | 出版社: | AMER CHEMICAL SOC | 卷: | 6 | 期: | 9 | 起(迄)頁: | 969 | 來源出版物: | ACS Macro Letters | 摘要: | © 2017 American Chemical Society. To investigate the effect of substitution of cyano groups (CN) on D-π-A type conjugated copolymer in photophysical and photovoltaic properties, a non-CN-substituted P4TIH and a CN-substituted P4TIN isoindigo-based copolymers were synthesized and characterized. Having dicyano-substituted bithiophene as electron-donating segment and isoindigo as electron-accepting segment, P4TIN exhibits a deeper highest occupied molecular orbital energy level (HOMO) than that of the non-CN-substituted P4TIH. Benefiting from the improved solubility via copolymer side-chain substituent (2-decylteradecyl), inverted solar cells fabricated with a thick (∼200 nm) active layer (P4TIN:PC61BM, 1:2.0) have achieved a very high open circuit voltage of 1.06 V. High power conversion efficiency of 8.36% can be reached without thermal annealing treatment or processing solvent additives. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/425101 | ISSN: | 2161-1653 | DOI: | https://api.elsevier.com/content/abstract/scopus_id/85029700375 10.1021/acsmacrolett.7b00547 |
SDG/關鍵字: | Conversion efficiency; Molecular orbitals; Open circuit voltage; Organic polymers; Photovoltaic effects; Polymer solar cells; Timing circuits; Conjugated copolymers; Effect of substitution; High performance polymer; High power conversion; Highest occupied molecular orbital energy levels; Photovoltaic property; Power conversion efficiencies; Thermal annealing treatment; Solar cells |
顯示於: | 材料科學與工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。