Efficient and stable perovskite solar cells thanks to dual functions of oleyl amine-coated PbSO4(PbO)(4) quantum dots: Defect passivation and moisture/oxygen blocking
文献类型：期刊论文
| 作者 | Chen, Chong2; Li, Fumin2; Zhu, Liangxin2; Shen, Zhitao2; Weng, Yujuan2; Lou, Qiang2; Tan, Furui2; Yue, Gentian2; Huang, Qingsong3; Wang, Mingtai1
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| 刊名 | NANO ENERGY
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 68 |
| ISSN号 | 2211-2855 |
| 关键词 | Perovskite solar cells PbSO4(PbO)(4) quantum-dots Passivate Efficiency Stability |
| DOI | 10.1016/j.nanoen.2019.104313 |
| 通讯作者 | Chen, Chong(chongchen@henu.edu.cn) ; Huang, Qingsong(qshuang@scu.edu.cn) ; Wang, Mingtai(mtwang@ipp.ac.cn) |
| 英文摘要 | The defects in perovskite crystals and the penetration of moisture/oxygen into the perovskite layer are major problems for perovskite solar cells (PSCs) to achieve long-term stability and high power conversion efficiency (PCE). However, there is still a lack of multifunctional passivation materials to solve these problems. Herein, for the first time, we report oleyl amine-coated PbSO4(PbO)(4) quantum-dots (QDs), as a passivation material with dual functions to simultaneously passivate the surface defects and block the penetration of moisture/oxygen into the perovskite layer for stable and efficient PSCs. The PbSO4(PbO)(4) QDs significantly reduce the defect density of the as-prepared CH3NH3PbI3 films by passivating under-coordinated Pb ions and I anions and effectively enhance charge extraction efficiency at the TiO2/CH3NH3PbI3 and CH3NH3PbI3/spiro-OMeTAD interfaces. Moreover, the hydrogen bond between H atoms of the OA and I atoms of the perovskite and the interface electric field at CH3NH3PbI3/OA interface also contribute to the improvement of efficiency and stability of PSCs. Finally, higher PCE (20.02%) is achieved by the PSCs with OA-coated PbSO4(PbO)(4) QDs compared to that (16.86%) of the PSCs without OA-coated PbSO4(PbO)(4), corresponding to a 18.7% enhancement. Moreover, the PSCs with OA-coated PbSO4(PbO)(4) QDs maintain 90% of initial efficiency after operation for 280 h, indicating better stability than the PSCs without PbSO4(PbO)(4) QDs. |
| WOS关键词 | HALIDE PEROVSKITES ; HIGHLY EFFICIENT ; GRAIN-BOUNDARIES ; CH3NH3PBI3 ; TEMPERATURE ; PERFORMANCE ; GROWTH ; FILMS ; DEGRADATION ; STABILITY |
| 资助项目 | National Science Foundation for Young Scientists of China[61704048] ; National Science Foundation for Young Scientists of China[F030406] ; National Natural Science Foundation of China-Talent Training Fund of Henan[U1404616] ; National Natural Science Foundation of China[91333121] ; National Natural Science Foundation of China[51472170] ; National Natural Science Foundation of China[11474286] ; National Natural Science Foundation of China[51771125] ; Program for Science &Technology Innovation Talents in Universities of Henan Province[19HASTIT049] ; Seed Fund of Young Scientific Research Talents of Henan University[CX0000A40540] ; Natural Science Foundation of Henan Province[162300410021] ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology[2016FXZY003] ; Science and Technology Project of Auhui Province[1604a0902148] ; Key Research Project of Henan Provincial Higher Education[19A140007] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000513811800029 |
| 资助机构 | National Science Foundation for Young Scientists of China ; National Natural Science Foundation of China-Talent Training Fund of Henan ; National Natural Science Foundation of China ; Program for Science &Technology Innovation Talents in Universities of Henan Province ; Seed Fund of Young Scientific Research Talents of Henan University ; Natural Science Foundation of Henan Province ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; Science and Technology Project of Auhui Province ; Key Research Project of Henan Provincial Higher Education |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103911]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Chen, Chong; Huang, Qingsong; Wang, Mingtai |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Technol, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Henan Univ, Henan Key Lab Photovolta Mat, Kaifeng 475004, Peoples R China 3.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Chong,Li, Fumin,Zhu, Liangxin,et al. Efficient and stable perovskite solar cells thanks to dual functions of oleyl amine-coated PbSO4(PbO)(4) quantum dots: Defect passivation and moisture/oxygen blocking[J]. NANO ENERGY,2020,68. |
| APA | Chen, Chong.,Li, Fumin.,Zhu, Liangxin.,Shen, Zhitao.,Weng, Yujuan.,...&Wang, Mingtai.(2020).Efficient and stable perovskite solar cells thanks to dual functions of oleyl amine-coated PbSO4(PbO)(4) quantum dots: Defect passivation and moisture/oxygen blocking.NANO ENERGY,68. |
| MLA | Chen, Chong,et al."Efficient and stable perovskite solar cells thanks to dual functions of oleyl amine-coated PbSO4(PbO)(4) quantum dots: Defect passivation and moisture/oxygen blocking".NANO ENERGY 68(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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