Fluorinated Benzoselenadiazole-Based Low-Band-Gap Polymers for High Efficiency Inverted Single and Tandem Organic Photovoltaic Cells
文献类型：期刊论文
| 作者 | Kim, Ji-Hoon1,2; Shin, Seung Ah1,2; Park, Jong Baek1,2; Song, Chang Eun3; Shin, Won Suk5; Yang, Hoichang4; Li, Yongfang6,7; Hwang, Do-Hoon1,2 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2014-03-11 |
| 卷号 | 47期号:5页码:1613-1622 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma4026493 |
| 英文摘要 | We designed and synthesized two low-band-gap conjugated copolymers with alternating difluorinated benzoselenadiazole (DFDTBSe) and ethylhexyloxy (EH)- or octyldodecyloxy (OD)-substituted benzo[1,2-b:4,5-b']-dithiophene (BDT) building blocks. PEHBDT-DFDTBSe and PODBDT-DFDTBSe have optical band gap energies of 1.66 and 1.69 eV, respectively, and HOMO energy levels of -5.44 and -5.43 eV, respectively. The different alkyloxy side chains in the polymers affect the molecular packing and ordering in active-layer films blended with [6,6]-phenyl-C-71 butyric acid methyl ester (PC71BM). The PEHBDT-DFDTBSe:PC71BM film comprises predominantly "face-on" crystal structures with short pi-pi stacking distances (3.69 angstrom) while PODBDT-DFDTBSe:PC71BM has mostly "edge-on" structures according to two-dimensional grazing-incidence X-ray diffraction analysis. Bulk heterojunction solar cells were fabricated with an inverted structure of ITO/ethoxylated polyethylenimine/polymer:PC71BM/MoO3/Ag. The device fabricated using the PEHBDT-DFDTBSe:PC71BM active layer shows a maximum power conversion efficiency (PCE) of up to 5.74%, which is the highest value reported for OPVs containing benzoselenadiazole and BDT-derivative polymers. A tandem solar cell was also fabricated using PEHBDT-DFDTBSe:PC71BM and poly(3-hexylthiophene):indene-C-60-bisadduct as the top and bottom cell components, respectively; its maximum PCE was 7.15%. |
| 语种 | 英语 |
| WOS记录号 | WOS:000338806900012 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/50801]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Hwang, Do-Hoon |
| 作者单位 | 1.Pusan Natl Univ, Dept Chem, Pusan 609735, South Korea 2.Pusan Natl Univ, Chem Inst Funct Mat, Pusan 609735, South Korea 3.Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea 4.Inha Univ, Optoelect Hybrids Res Ctr, Dept Adv Fiber Engn, Inchon 402751, South Korea 5.Korea Res Inst Chem Technol, Taejon 305343, South Korea 6.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 7.Chinese Acad Sci, Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kim, Ji-Hoon,Shin, Seung Ah,Park, Jong Baek,et al. Fluorinated Benzoselenadiazole-Based Low-Band-Gap Polymers for High Efficiency Inverted Single and Tandem Organic Photovoltaic Cells[J]. MACROMOLECULES,2014,47(5):1613-1622. |
| APA | Kim, Ji-Hoon.,Shin, Seung Ah.,Park, Jong Baek.,Song, Chang Eun.,Shin, Won Suk.,...&Hwang, Do-Hoon.(2014).Fluorinated Benzoselenadiazole-Based Low-Band-Gap Polymers for High Efficiency Inverted Single and Tandem Organic Photovoltaic Cells.MACROMOLECULES,47(5),1613-1622. |
| MLA | Kim, Ji-Hoon,et al."Fluorinated Benzoselenadiazole-Based Low-Band-Gap Polymers for High Efficiency Inverted Single and Tandem Organic Photovoltaic Cells".MACROMOLECULES 47.5(2014):1613-1622. |
入库方式： OAI收割
来源：化学研究所
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