Constructing of superhydrophobic and intact crystal terminal: Interface sealing strategy for stable perovskite solar cells with efficiency over 23%
文献类型：期刊论文
| 作者 | Xu, Shendong2,3; Zhang, Liying2,3; Liu, Boyuan2,3; Liang, Zheng2,3; Xu, Huifen2,3; Zhang, Hui1,3 ; Ye, Jiajiu3; Ma, Haibin1; Liu, Guozhen3; Pan, Xu3
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
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| 出版日期 | 2023-02-01 |
| 卷号 | 453 |
| ISSN号 | 1385-8947 |
| 关键词 | Perovskite solar cells Crystal terminal Terminal sealing Superhydrophobic Pseudo -halide |
| DOI | 10.1016/j.cej.2022.139808 |
| 通讯作者 | Liu, Guozhen(gzliu@issp.ac.cn) |
| 英文摘要 | The numerous nonstoichiometric imperfections on the perovskite crystal terminal are usually resulting in unwished nonradiative recombination as well as high risk of lead leakage. Herein, the terminal sealing strategy by using pseudo-halide ammonium salts was developed to seal lattice defects via ion-exchange reaction and interact with uncoordinated Pb2+ at the terminal of the perovskite films. The superhydrophobic ammonium cations can bond to undercoordinated Pb2+ and I-/Br- on crystal terminal, impeding erosion from the environment. Furthermore, the terminal sealing layer modulated the energy level alignment between perovskite and holes transport layer to promote efficient extraction of the hole. The optimal device attained a power conversion efficiency (PCE) over 23% without obvious hysteresis. The unencapsulated devices maintained 90% of the original PCE after operation at 60 +/- 10% RH for 1200 h and exhibited a 20% loss in PCE after 500 h light soaking aging. More importantly, immersion operation further showed their superior structure stability against water. This work provides a unique perspective towards reconstructing the imperfect lattice defects and reducing lead leakage venture of perovskite crystal terminals. |
| WOS关键词 | IMMOBILIZATION ; PERFORMANCE ; STABILITY ; SALT |
| 资助项目 | National Key R&D Pro-gram of China ; Natural Science Foundation of Anhui Province ; China Postdoctoral Science Foundation ; [2021YFB3800102] ; [2108085J34] ; [2108085QE190] ; [2021M693213] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000876988200004 |
| 资助机构 | National Key R&D Pro-gram of China ; Natural Science Foundation of Anhui Province ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/130021]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Liu, Guozhen |
| 作者单位 | 1.Weifang Univ, Coll Chem Chem & Environm Engn, Weifang 261061, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Shendong,Zhang, Liying,Liu, Boyuan,et al. Constructing of superhydrophobic and intact crystal terminal: Interface sealing strategy for stable perovskite solar cells with efficiency over 23%[J]. CHEMICAL ENGINEERING JOURNAL,2023,453. |
| APA | Xu, Shendong.,Zhang, Liying.,Liu, Boyuan.,Liang, Zheng.,Xu, Huifen.,...&Pan, Xu.(2023).Constructing of superhydrophobic and intact crystal terminal: Interface sealing strategy for stable perovskite solar cells with efficiency over 23%.CHEMICAL ENGINEERING JOURNAL,453. |
| MLA | Xu, Shendong,et al."Constructing of superhydrophobic and intact crystal terminal: Interface sealing strategy for stable perovskite solar cells with efficiency over 23%".CHEMICAL ENGINEERING JOURNAL 453(2023). |
入库方式： OAI收割
来源：合肥物质科学研究院
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