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High Extinction Coefficient Thieno[3,4-b]thiophene-Based Copolymer for Efficient Fullerene-Free Solar Cells with Large Current Density
Bao, XC; Zhang, YC; Wang, JY; Zhu, DQ; Yang, CP; Li, YH; Yang, CM; Xu, JT; Yang, RQ
2017
Source PublicationCHEMISTRY OF MATERIALS
ISSN0897-4756
Volume29Issue:16Pages:6766-6771
Subtype期刊论文
AbstractA thieno[3,4-b]thibphene-based donor polymer PTBTz-2 was employed to construct fullerene-free solar cell with the classical acceptor ITIC. Interestingly, due to the high extinction coefficients and wide absorption for these two materials, the active layer can harvest a larger fraction of the coverage solar spectrum even in ultrathin film. Furthermore, the simultaneous advantages of appropriate cascade energy level, well-balanced hole/electron mobility (mu(h)/mu(e) = 1.16), and low charge accumulation and recombination, make the PTBTz-2/ITIC-based solar cells exhibit an excellent power conversion efficiency of 10.92% with large short circuit current density of 20.34 mA cm(-2). The results indicate that fine-tailored thieno [3,4-b]thiophene-based polymers would be another type of promising donor materials, except for widely reported efficient benzo[d][1,2,3]triazole (BTA)- or benzo[1,2-c:4,5-c']-dithiophene-4,8-dione (BDD)-based polymers, and would enrich the reservoir of high-performance light-harvesting conjugated polymers.
KeywordOpen-circuit Voltage High-performance Conversion Efficiency Photovoltaic Polymers Molecular Acceptors Electron-acceptors Donor Thiazole 12-percent Cathode
DOI10.1021/acs.chemmater.7b01650
WOS KeywordOPEN-CIRCUIT VOLTAGE ; HIGH-PERFORMANCE ; CONVERSION EFFICIENCY ; PHOTOVOLTAIC POLYMERS ; MOLECULAR ACCEPTORS ; ELECTRON-ACCEPTORS ; DONOR ; THIAZOLE ; 12-PERCENT ; CATHODE
Indexed BySCI
Language英语
WOS IDWOS:000408519800024
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28676
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Bao, XC,Zhang, YC,Wang, JY,et al. High Extinction Coefficient Thieno[3,4-b]thiophene-Based Copolymer for Efficient Fullerene-Free Solar Cells with Large Current Density[J]. CHEMISTRY OF MATERIALS,2017,29(16):6766-6771.
APA Bao, XC.,Zhang, YC.,Wang, JY.,Zhu, DQ.,Yang, CP.,...&Yang, RQ.(2017).High Extinction Coefficient Thieno[3,4-b]thiophene-Based Copolymer for Efficient Fullerene-Free Solar Cells with Large Current Density.CHEMISTRY OF MATERIALS,29(16),6766-6771.
MLA Bao, XC,et al."High Extinction Coefficient Thieno[3,4-b]thiophene-Based Copolymer for Efficient Fullerene-Free Solar Cells with Large Current Density".CHEMISTRY OF MATERIALS 29.16(2017):6766-6771.
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