| Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge | |
| Zheng, Huilin1,2; Wang, Jiuxing2,3; Chen, Weiye1,2; Gu, Chuantao2,3; Ren, Junzhen1,2; Qiu, Meng2; Yang, Renqiang2; Sun, Mingliang1,4 | |
| 2016 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY C
 |
| Volume | 4Issue:26Pages:6280-6286 |
| Abstract | Two novel donor-pi-acceptor (D-pi-A) type polymers based on indacenodithiophene (IDT) and thieno[3,4-c]pyrrole-4,6-dione (TPD) with thiophene (PIDT-t-TPD) or thieno[3,2-b]thiophene (PIDT-tt-TPD) as pi-bridges were designed and synthesized. The pi-conjugated backbone length in the repeating unit of the polymer chain was varied by different p-bridges. Both polymers exhibit planar molecular structures, similar broad optical band gaps (E-g(opt)) and low-lying highest occupied molecular orbital (HOMO) energy levels. However, PIDT-tt-TPD with the more extended pi-conjugated backbone shows higher hole mobility and better miscibility with (6,6)-phenyl-C-71-butyric acid methyl ester (PC71BM). Polymer solar cells (PSCs) based on PIDT-tt-TPD: PC71BM show the highest power conversion efficiency (PCE) of 5.23% with a short-circuit current density (J(SC)) of 11.22 mA cm(-2). Considering the limited absorption of PIDT-tt-TPD (400-650 nm), the J(SC) value is very impressive. In contrast, PIDT-t-TPD:PC71BM only shows a PCE of 2.47% with a low J(SC) of 5.52 mA cm(-2). The lower J(SC) value of PIDT-t-TPD is consistent with its limited external quantum efficiency (EQE) response (lower than 40%). The present results demonstrate that extending the length of a pi-conjugated backbone by an appropriate pi-bridge in the D-A polymer improves the photovoltaic performance of PSCs. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology ; Physical Sciences |
| DOI | 10.1039/c6tc01238h |
| WOS Keyword | ORGANIC SOLAR-CELLS ; OPEN-CIRCUIT VOLTAGE ; ACCEPTOR CONJUGATED POLYMERS ; POWER CONVERSION EFFICIENCY ; HIGH-PERFORMANCE ; SIDE-CHAINS ; SEMICONDUCTING POLYMERS ; COPOLYMERS ; TRANSISTORS ; BENZODITHIOPHENE |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Physics |
| Funding Organization | NSFC(21274134 ; State Key Laboratory of Luminescent Materials and Devices(2016-skllmd-01) ; Shandong Province Postdoc Foundation(201301007) ; 51573205) |
| WOS Subject | Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000379492900012 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qibebt.ac.cn/handle/337004/8394 |
| Collection | 先进有机功能材料研究组 |
| Affiliation | 1.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Biobased Mat, Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Zheng, Huilin,Wang, Jiuxing,Chen, Weiye,et al. Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge[J]. JOURNAL OF MATERIALS CHEMISTRY C,2016,4(26):6280-6286. |
| APA | Zheng, Huilin.,Wang, Jiuxing.,Chen, Weiye.,Gu, Chuantao.,Ren, Junzhen.,...&Sun, Mingliang.(2016).Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge.JOURNAL OF MATERIALS CHEMISTRY C,4(26),6280-6286. |
| MLA | Zheng, Huilin,et al."Efficiency enhancement in an indacenodithiophene and thieno[3,4-c]pyrrole-4,6-dione backbone photovoltaic polymer with an extended thieno[3,2-b]thiophene pi-bridge".JOURNAL OF MATERIALS CHEMISTRY C 4.26(2016):6280-6286. |
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