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Novel wide band gap polymers based on dithienobenzoxadiazole for polymer solar cells with high open circuit voltages over 1 V
Ding, Dakang1,2; Wang, Jiuxing2,4; Chen, Weiye1; Qiu, Meng2; Ren, Junzhen1; Zheng, Huilin1; Liu, Deyu2; Sun, Mingliang1,3; Yang, Renqiang2
2016
发表期刊RSC ADVANCES
卷号6期号:56页码:51419-51425
摘要A new monomer dithieno-[3',2': 3,4; 2 '',3 '': 5,6]benzo[1,2-c]xadiazole (fDTBO) is first used as an electron-deficient acceptor to build D-A copolymers in a photovoltaic field. Two polymers PBDTT-fDTBO and PBDTO-fDTBO consist of fDTBO with thienyl-substituted-benzodithiophene (BDTT) or alkoxy-substituted benzodithiophene (BDTO). Both polymers show a deep HOMO around -5.5 eV with a wide band gap of over 1.9 eV. The polymer solar cells (PSCs) based on two polymers both show over 1 V high open circuit voltage (V-oc) independent of polymer/PCBM ratios and solvent additives content in the PSCs active layer. The power conversion efficiency (PCE) based on PBDTT-fDTBO devices is 4.5% for single junction PSCs, and these polymers can be applied in tandem PSCs due to their wide band gap (up to 1.99 eV). This work demonstrates that the fDTBO unit is a promising building block to design wide band gap photovoltaic polymers with high V-oc.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra07951b
关键词[WOS]POWER CONVERSION EFFICIENCY ; CONJUGATED POLYMER ; HIGH-PERFORMANCE ; SIDE-CHAINS ; PHOTOVOLTAIC POLYMERS ; ORGANIC PHOTOVOLTAICS ; ENERGY-LOSSES ; BENZODITHIOPHENE ; COPOLYMER ; 4,7-DI-2-THIENYL-2,1,3-BENZOTHIADIAZOLE
收录类别SCI
语种英语
WOS研究方向Chemistry
项目资助者NSFC(21274134 ; State Key Laboratory of Luminescent Materials and Devices(2016-skllmd-01) ; 51573205)
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000377515200119
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/8236
专题先进有机功能材料研究组
作者单位1.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
3.S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Ding, Dakang,Wang, Jiuxing,Chen, Weiye,et al. Novel wide band gap polymers based on dithienobenzoxadiazole for polymer solar cells with high open circuit voltages over 1 V[J]. RSC ADVANCES,2016,6(56):51419-51425.
APA Ding, Dakang.,Wang, Jiuxing.,Chen, Weiye.,Qiu, Meng.,Ren, Junzhen.,...&Yang, Renqiang.(2016).Novel wide band gap polymers based on dithienobenzoxadiazole for polymer solar cells with high open circuit voltages over 1 V.RSC ADVANCES,6(56),51419-51425.
MLA Ding, Dakang,et al."Novel wide band gap polymers based on dithienobenzoxadiazole for polymer solar cells with high open circuit voltages over 1 V".RSC ADVANCES 6.56(2016):51419-51425.
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