Improved comprehensive performance of CsPbI2Br perovskite solar cells by modifying the photoactive layers with carbon nanodots
Introducing additives into perovskite layers is an effective method to enhance the power conversion efficiency (PCE) and operation stability of perovskite solar cells (PSCs). Herein, we reported an addition of carbon nanodots (CNDs) into the CsPbI2Br photoactive layer to boost performance of the rel...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | Journal of Materiomics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847821001258 |
| _version_ | 1797721480715304960 |
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| author | Yanzhou Wang Caidong Xie Xincheng Yao Qiulu Chen Weining Liu Yujun Fu Qiming Liu Junshuai Li Yali Li Deyan He |
| author_facet | Yanzhou Wang Caidong Xie Xincheng Yao Qiulu Chen Weining Liu Yujun Fu Qiming Liu Junshuai Li Yali Li Deyan He |
| author_sort | Yanzhou Wang |
| collection | DOAJ |
| description | Introducing additives into perovskite layers is an effective method to enhance the power conversion efficiency (PCE) and operation stability of perovskite solar cells (PSCs). Herein, we reported an addition of carbon nanodots (CNDs) into the CsPbI2Br photoactive layer to boost performance of the related PSCs. It is found that the trap density can be notably suppressed, and the crystallinity can be enhanced after introducing CNDs with an optimal quantity. The PSC with 1.0 wt% addition of CNDs delivers a notable improved average PCE of 13.77% (the highest PCE: 14.69%) from that of 12.14% for the control device without CND addition. Moreover, the CND-added CsPbI2Br PSCs exhibit superior stability, i.e., ∼86 % retention of the initial PCE after 160 h aging in air with the humidity of 20%–30%, to the control device. |
| first_indexed | 2024-03-12T09:33:53Z |
| format | Article |
| id | doaj.art-27e65a52240e488ca1728c4d499d0b28 |
| institution | Directory Open Access Journal |
| issn | 2352-8478 |
| language | English |
| last_indexed | 2024-03-12T09:33:53Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
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| series | Journal of Materiomics |
| spelling | doaj.art-27e65a52240e488ca1728c4d499d0b282023-09-02T13:49:04ZengElsevierJournal of Materiomics2352-84782022-03-0182358365Improved comprehensive performance of CsPbI2Br perovskite solar cells by modifying the photoactive layers with carbon nanodotsYanzhou Wang0Caidong Xie1Xincheng Yao2Qiulu Chen3Weining Liu4Yujun Fu5Qiming Liu6Junshuai Li7Yali Li8Deyan He9Key Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaKey Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaKey Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaKey Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaKey Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaKey Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaCorresponding author.; Key Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaCorresponding author.; Key Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaCorresponding author.; Key Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaKey Laboratory of Special Function Materials & Structure Design of the Ministry of Education, And School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, ChinaIntroducing additives into perovskite layers is an effective method to enhance the power conversion efficiency (PCE) and operation stability of perovskite solar cells (PSCs). Herein, we reported an addition of carbon nanodots (CNDs) into the CsPbI2Br photoactive layer to boost performance of the related PSCs. It is found that the trap density can be notably suppressed, and the crystallinity can be enhanced after introducing CNDs with an optimal quantity. The PSC with 1.0 wt% addition of CNDs delivers a notable improved average PCE of 13.77% (the highest PCE: 14.69%) from that of 12.14% for the control device without CND addition. Moreover, the CND-added CsPbI2Br PSCs exhibit superior stability, i.e., ∼86 % retention of the initial PCE after 160 h aging in air with the humidity of 20%–30%, to the control device.http://www.sciencedirect.com/science/article/pii/S2352847821001258CsPbI2Br perovskite Solar cellsCarbon nanodotsPower conversion efficiencyStability |
| spellingShingle | Yanzhou Wang Caidong Xie Xincheng Yao Qiulu Chen Weining Liu Yujun Fu Qiming Liu Junshuai Li Yali Li Deyan He Improved comprehensive performance of CsPbI2Br perovskite solar cells by modifying the photoactive layers with carbon nanodots Journal of Materiomics CsPbI2Br perovskite Solar cells Carbon nanodots Power conversion efficiency Stability |
| title | Improved comprehensive performance of CsPbI2Br perovskite solar cells by modifying the photoactive layers with carbon nanodots |
| title_full | Improved comprehensive performance of CsPbI2Br perovskite solar cells by modifying the photoactive layers with carbon nanodots |
| title_fullStr | Improved comprehensive performance of CsPbI2Br perovskite solar cells by modifying the photoactive layers with carbon nanodots |
| title_full_unstemmed | Improved comprehensive performance of CsPbI2Br perovskite solar cells by modifying the photoactive layers with carbon nanodots |
| title_short | Improved comprehensive performance of CsPbI2Br perovskite solar cells by modifying the photoactive layers with carbon nanodots |
| title_sort | improved comprehensive performance of cspbi2br perovskite solar cells by modifying the photoactive layers with carbon nanodots |
| topic | CsPbI2Br perovskite Solar cells Carbon nanodots Power conversion efficiency Stability |
| url | http://www.sciencedirect.com/science/article/pii/S2352847821001258 |
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