Investigations of the Conjugated Polymers Based on Dithienogermole (DTG) Units for Photovoltaic Applications
文献类型：期刊论文
| 作者 | Wang, Qi1,2; Zhang, Shaoqing1,2; Ye, Long2; Cui, Yong1,2; Fan, Huili1; Hou, Jianhui1,2 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2014-08-26 |
| 卷号 | 47期号:16页码:5558-5565 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma500831z |
| 英文摘要 | Conjugated polymers based on the dithienogermole (DTG) units showed promising properties for the applications in polymer solar cells (PSCs), so that the investigations of the natures and photovoltaic properties of the DTG-based polymers with varied backbone structures would be of great interest. In this work, four DTG-based polymers named as PDTG-BDD, PDTG-IID, PDTG-BT, and PDTG-DPP were synthesized and characterized. The results indicate that the DTG-based polymers show varied absorption bands and molecular energy levels. In X-ray diffraction measurements, these polymers show different laminar packing and pi-pi stacking distances in solid films. The PSC devices based on the four DTG-based polymers were fabricated, and their photovoltaic properties were characterized. The results show that different device fabrication conditions are needed to get optimal photovoltaic performance of these four polymers. The device of PDTG-BDD shows a PCE of 6.3% with a high V-oc 0.935 V, a FF of 65.0%, and a J(sc) of 10.3 mA/cm(2), which is the highest one in these four polymers; the devices of PDTG-DPP showed a miserably low J(sc) of 3.19 mA/cm(2) due to the unfavorable morphologies of the polymer:PC71BM blend. Overall, the comparisons among these four polymers provide fundamental information for understanding the correlations among molecular structures and photovoltaic properties of the DTG-based polymers, and how to control or modulate the bandgaps, molecular energy levels, and morphologies of the DTG-polymers will be the key to fully explore their potentials as photovoltaic materials. |
| 语种 | 英语 |
| WOS记录号 | WOS:000340992700014 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53237]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fan, Huili |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Qi,Zhang, Shaoqing,Ye, Long,et al. Investigations of the Conjugated Polymers Based on Dithienogermole (DTG) Units for Photovoltaic Applications[J]. MACROMOLECULES,2014,47(16):5558-5565. |
| APA | Wang, Qi,Zhang, Shaoqing,Ye, Long,Cui, Yong,Fan, Huili,&Hou, Jianhui.(2014).Investigations of the Conjugated Polymers Based on Dithienogermole (DTG) Units for Photovoltaic Applications.MACROMOLECULES,47(16),5558-5565. |
| MLA | Wang, Qi,et al."Investigations of the Conjugated Polymers Based on Dithienogermole (DTG) Units for Photovoltaic Applications".MACROMOLECULES 47.16(2014):5558-5565. |
入库方式： OAI收割
来源：化学研究所
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