| Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer | |
| Ding, Dakang1,2; Chen, Weiye1; Wang, Jiuxing2; Qiu, Meng2; Zheng, Huilin1; Ren, Junzhen1; Fan, Meijie1; Sun, Mingliang1,3; Yang, Renqiang2 | |
| 2016-10-07 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY C
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| Volume | 4Issue:37Pages:8716-8723 |
| Abstract | A novel monomer alkoxybiphenyl-substituted benzodithiophene (BDTBP) was synthesized and used as the donor to construct a donor-acceptor copolymer PBDTBP-DTffBT with 4,7-di(4-(2-ethylhexyl)-2-thienyl)-5,6-difluoro-2,1,3-benzothiadiazole (DTffBT) as the acceptor unit. Compared with the corresponding polymer PBDTP-DTffBT based on alkoxyphenyl-substituted BDT, PBDTBP-DTffBT exhibits a red-shifted UV-vis absorption spectra due to its extended pi-conjugation structure. The maximum power conversion efficiency (PCE) of PBDTBP-DTffBT based polymer solar cells (PSCs) is 6.70% with V-oc = 0.85 V, J(sc) = 12.72 mA cm(-2) and FF = 62.14%, and the hole mobility is 3.45 x 10(-4) cm(2) V-1 s(-1) while the maximum PCE of PSCs based on PBDTP-DTffBT is only 4.91% and the hole mobility is 1.70 x 10(-5) cm(2) V-1 s(-1). These findings demonstrate that BDTBP unit is a promising building block for constructing a copolymer with high hole mobility, and extending the pi-conjugation length on the alkoxyphenyl-substituted BDT is helpful to improve the photovoltaic properties. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology ; Physical Sciences |
| DOI | 10.1039/c6tc03346f |
| WOS Keyword | POWER CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGE ; DONOR-ACCEPTOR COPOLYMERS ; ORGANIC SOLAR-CELLS ; LOW-BANDGAP POLYMER ; SIDE-CHAINS ; SINGLE-JUNCTION ; HIGH-PERFORMANCE ; SUBSTITUENTS ; CATHODE |
| 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) ; 51573205) |
| WOS Subject | Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000385477300015 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qibebt.ac.cn/handle/337004/9058 |
| 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, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 3.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Ding, Dakang,Chen, Weiye,Wang, Jiuxing,et al. Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer[J]. JOURNAL OF MATERIALS CHEMISTRY C,2016,4(37):8716-8723. |
| APA | Ding, Dakang.,Chen, Weiye.,Wang, Jiuxing.,Qiu, Meng.,Zheng, Huilin.,...&Yang, Renqiang.(2016).Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer.JOURNAL OF MATERIALS CHEMISTRY C,4(37),8716-8723. |
| MLA | Ding, Dakang,et al."Extending two-dimensional pi-conjugation length by introducing the alkoxybiphenyl unit for efficient benzodithiophene based photovoltaic polymer".JOURNAL OF MATERIALS CHEMISTRY C 4.37(2016):8716-8723. |
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