Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers
Efficient inverted low-bandgap polymer solar cells with an aqueous solution processed low-temperature ZnO buffer layer have been investigated. The low-bandgap material PTB-7 is employed so that more solar light can be efficiently harvested, and the aqueous solution processed ZnO electron transport b...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2016/3675036 |
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| author | Chunfu Zhang Shangzheng Pang Ting Heng Hailong You Genquan Han Gang Lu Fengqin He Qubo Jiang Jincheng Zhang |
| author_facet | Chunfu Zhang Shangzheng Pang Ting Heng Hailong You Genquan Han Gang Lu Fengqin He Qubo Jiang Jincheng Zhang |
| author_sort | Chunfu Zhang |
| collection | DOAJ |
| description | Efficient inverted low-bandgap polymer solar cells with an aqueous solution processed low-temperature ZnO buffer layer have been investigated. The low-bandgap material PTB-7 is employed so that more solar light can be efficiently harvested, and the aqueous solution processed ZnO electron transport buffer layer is prepared at 150°C so that it can be compatible with the roll-to-roll process. Power conversion efficiency (PCE) of the inverted device reaches 7.12%, which is near the control conventional device. More importantly, the inverted device shows a better stability, keeping more than 90% of its original PCE after being stored for 625 hours, while PCE of the conventional device is only 75% of what it was. In addition, it is found that the ZnO thin film annealed in N2 can obviously increase PCE of the inverted device further to 7.26%. |
| format | Article |
| id | doaj-art-4c79b26fdfff44298efe605c782ca4e5 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-4c79b26fdfff44298efe605c782ca4e52025-08-20T03:36:14ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2016-01-01201610.1155/2016/36750363675036Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer LayersChunfu Zhang0Shangzheng Pang1Ting Heng2Hailong You3Genquan Han4Gang Lu5Fengqin He6Qubo Jiang7Jincheng Zhang8State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi’an 710071, ChinaState Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi’an 710071, ChinaState Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi’an 710071, ChinaState Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi’an 710071, ChinaState Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi’an 710071, ChinaHuanghe Hydropower Solar Industry Technology Co., Ltd., 369 South Yanta Road, Xi’an 710061, ChinaHuanghe Hydropower Solar Industry Technology Co., Ltd., 369 South Yanta Road, Xi’an 710061, ChinaGuilin University of Electronic Technology, No. 1 Jinji Road, Guilin 541004, ChinaState Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi’an 710071, ChinaEfficient inverted low-bandgap polymer solar cells with an aqueous solution processed low-temperature ZnO buffer layer have been investigated. The low-bandgap material PTB-7 is employed so that more solar light can be efficiently harvested, and the aqueous solution processed ZnO electron transport buffer layer is prepared at 150°C so that it can be compatible with the roll-to-roll process. Power conversion efficiency (PCE) of the inverted device reaches 7.12%, which is near the control conventional device. More importantly, the inverted device shows a better stability, keeping more than 90% of its original PCE after being stored for 625 hours, while PCE of the conventional device is only 75% of what it was. In addition, it is found that the ZnO thin film annealed in N2 can obviously increase PCE of the inverted device further to 7.26%.http://dx.doi.org/10.1155/2016/3675036 |
| spellingShingle | Chunfu Zhang Shangzheng Pang Ting Heng Hailong You Genquan Han Gang Lu Fengqin He Qubo Jiang Jincheng Zhang Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers International Journal of Photoenergy |
| title | Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers |
| title_full | Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers |
| title_fullStr | Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers |
| title_full_unstemmed | Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers |
| title_short | Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers |
| title_sort | stable inverted low bandgap polymer solar cells with aqueous solution processed low temperature zno buffer layers |
| url | http://dx.doi.org/10.1155/2016/3675036 |
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