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DOI | 10.1038/s41467-017-00229-9 |
Strain engineering in perovskite solar cells and its impacts on carrier dynamics | |
Zhu, Cheng1; Niu, Xiuxiu; Fu, Yuhao2,3; Li, Nengxu4; Hu, Chen5; Chen, Yihua4; He, Xin2,3; Na, Guangren2,3; Liu, Pengfei1; Zai, Huachao6; Ge, Yang7; Lu, Yue7; Ke, Xiaoxing7; Bai, Yang1; Yang, Shihe5,8; Chen, Pengwan9; Li, Yujing1; Sui, Manling7; Zhang, Lijun2,3; Zhou, Huanping4; Chen, Qi1 | |
2019-02-18 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2019 |
卷号 | 10 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The mixed halide perovskites have emerged as outstanding light absorbers for efficient solar cells. Unfortunately, it reveals inhomogeneity in these polycrystalline films due to composition separation, which leads to local lattice mismatches and emergent residual strains consequently. Thus far, the understanding of these residual strains and their effects on photovoltaic device performance is absent. Herein we study the evolution of residual strain over the films by depth-dependent grazing incident X-ray diffraction measurements. We identify the gradient distribution of in-plane strain component perpendicular to the substrate. Moreover, we reveal its impacts on the carrier dynamics over corresponding solar cells, which is stemmed from the strain induced energy bands bending of the perovskite absorber as indicated by first-principles calculations. Eventually, we modulate the status of residual strains in a controllable manner, which leads to enhanced PCEs up to 20.7% (certified) in devices via rational strain engineering. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000458864600018 |
WOS关键词 | ORGANIC-INORGANIC PEROVSKITES ; TOTAL-ENERGY CALCULATIONS ; STRESS GRADIENT ANALYSIS ; LEAD IODIDE PEROVSKITES ; HIGH-EFFICIENCY ; METHYLAMMONIUM ; SEMICONDUCTORS ; SEGREGATION ; TRIHALIDE ; TRANSPORT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203399 |
专题 | 资源环境科学 |
作者单位 | 1.Beijing Inst Technol, Sch Mat Sci & Engn, Adv Mat Expt Ctr, Beijing Key Lab Construct Tailorable Adv Funct Ma, Beijing 100081, Peoples R China; 2.Jilin Univ, Key Lab Automobile Mat MOE, State Key Lab Superhard Mat, Changchun 130012, Jilin, Peoples R China; 3.Jilin Univ, Sch Mat Sci & Engn, Changchun 130012, Jilin, Peoples R China; 4.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China; 5.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Clear Water Bay, Hong Kong, Peoples R China; 6.China Univ Petr, Coll Sci, Dept Mat Sci & Engn, Beijing 102249, Peoples R China; 7.Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China; 8.Peking Univ, Shenzhen Grad Sch, Sch Chem Biol & Biotechnol, Guangdong Key Lab Nano Micro Mat Res, Shenzhen 518055, Guangdong, Peoples R China; 9.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu, Cheng,Niu, Xiuxiu,Fu, Yuhao,et al. Strain engineering in perovskite solar cells and its impacts on carrier dynamics[J]. NATURE COMMUNICATIONS,2019,10. |
APA | Zhu, Cheng.,Niu, Xiuxiu.,Fu, Yuhao.,Li, Nengxu.,Hu, Chen.,...&Chen, Qi.(2019).Strain engineering in perovskite solar cells and its impacts on carrier dynamics.NATURE COMMUNICATIONS,10. |
MLA | Zhu, Cheng,et al."Strain engineering in perovskite solar cells and its impacts on carrier dynamics".NATURE COMMUNICATIONS 10(2019). |
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