Efficient Organic Solar Cells with Extremely High Open-Circuit Voltages and Low Voltage Losses by Suppressing Nonradiative Recombination Losses
文献类型：期刊论文
| 作者 | Liu, Xi1; Du, Xiaoyan2; Wang, Junyi1; Duan, Chunhui1; Tang, Xiaofeng2; Heumueller, Thomas2; Liu, Guogang3; Li, Yan3; Wang, Zhaohui3; Wang, Jing4 |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2018-09-14 |
| 卷号 | 8期号:26 |
| ISSN号 | 1614-6832 |
| 关键词 | Nonfullerene Acceptors Nonradiative Recombination Losses Open-circuit Voltages Organic Solar Cells Voltage Losses |
| DOI | 10.1002/aenm.201801699 |
| 英文摘要 | One of the most important factors that limits the efficiencies of bulk-heterojunction organic solar cells (OSCs) is the modest open-circuit voltage (V-oc) due to their large voltage loss (V-loss) caused by significant nonradiative recombination loss. To boost the performance of OSCs toward their theoretical limit, developing high-performance donor: acceptor systems featuring low V-loss with suppressed nonradiative recombination losses (<0.30 V) is desired. Herein, high performance OSCs based on a polymer donor benzodithiophene-difluorobenzoxadiazole-2-decyltetradecyl (BDT-ffBX-DT) and perylenediimide-based acceptors (PDI dimer with spirofluorene linker (SFPDI), PDI4, and PDI6) are reported which offer a high power conversion efficiency (PCE) of 7.5%, 56% external quantum efficiency associated with very high V-oc (>1.10 V) and low V-loss (<0.60 V). A high V-oc up to 1.23 V is achieved, which is among the highest values reported for OSCs with a PCE beyond 6%, to date. These attractive results are benefit from the suppressed nonradiative recombination voltage loss, which is as low as 0.20 V. This value is the lowest value for OSCs so far and is comparable to high performance crystalline silicon and perovskite solar cells. These results show that OSCs have the potential to achieve comparable V-oc and voltage loss as inorganic photovoltaic technologies. |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000444537800025 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/43079]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Duan, Chunhui; Liu, Feng; Li, Ning; Huang, Fei |
| 作者单位 | 1.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Inst Polymer Optoelect Mat & Devices, Wushan Rd 381, Guangzhou 510640, Guangdong, Peoples R China 2.Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol, Martensstr 7, D-91058 Erlangen, Germany 3.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 4.Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China 5.Bavarian Ctr Appl Energy Res ZAE Bayern, Immerwahrstr 2, D-91058 Erlangen, Germany |
| 推荐引用方式 GB/T 7714 | Liu, Xi,Du, Xiaoyan,Wang, Junyi,et al. Efficient Organic Solar Cells with Extremely High Open-Circuit Voltages and Low Voltage Losses by Suppressing Nonradiative Recombination Losses[J]. ADVANCED ENERGY MATERIALS,2018,8(26). |
| APA | Liu, Xi.,Du, Xiaoyan.,Wang, Junyi.,Duan, Chunhui.,Tang, Xiaofeng.,...&Cao, Yong.(2018).Efficient Organic Solar Cells with Extremely High Open-Circuit Voltages and Low Voltage Losses by Suppressing Nonradiative Recombination Losses.ADVANCED ENERGY MATERIALS,8(26). |
| MLA | Liu, Xi,et al."Efficient Organic Solar Cells with Extremely High Open-Circuit Voltages and Low Voltage Losses by Suppressing Nonradiative Recombination Losses".ADVANCED ENERGY MATERIALS 8.26(2018). |
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来源：化学研究所
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