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DOI | 10.1126/science.aap8671 |
Light-induced lattice expansion leads to high-efficiency perovskite solar cells | |
Tsai, Hsinhan1,2; Asadpour, Reza3; Blancon, Jean-Christophe1; Stoumpos, Constantinos C.4,5; Durand, Olivier6; Strzalka, Joseph W.7; Chen, Bo8; Verduzco, Rafael2,9; Ajayan, Pulickel M.2; Tretiak, Sergei10; Even, Jack6; Alam, Muhammad Ashraf3; Kanatzidis, Mercouri G.4,5; Nie, Wanyi1; Mohite, Aditya D.1,9 | |
2018-04-06 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 360期号:6384页码:67-70 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France |
英文摘要 | Light-induced structural dynamics plays a vital role in the physical properties, device performance, and stability of hybrid perovskite based optoelectronic devices. We report that continuous light illumination leads to a uniform lattice expansion in hybrid perovskite thin films, which is critical for obtaining high-efficiency photovoltaic devices. Correlated, in situ structural and device characterizations reveal that light-induced lattice expansion benefits the performances of a mixed-cation pure-halide planar device, boosting the power conversion efficiency from 18.5 to 20.5%.The lattice expansion leads to the relaxation of local lattice strain, which lowers the energetic barriers at the perovskite-contact interfaces, thus improving the open circuit voltage and fill factor. The light-induced lattice expansion did not compromise the stability of these high-efficiency photovoltaic devices under continuous operation at full-spectrum 1-sun (100 milliwatts per square centimeter) illumination for more than 1500 hours. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429263100047 |
WOS关键词 | HALIDE PEROVSKITES ; HYSTERESIS ; MICROSTRUCTURE ; PHOTOCURRENT ; PHONONS |
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/198345 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.LANL, Div Mat Phys & Applicat, Los Alamos, NM 87545 USA; 2.Rice Univ, Dept Mat Sci & Nanoengn, Houston, TX 77005 USA; 3.Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA; 4.Northwestern Univ, Dept Chem, Evanston, IL 60208 USA; 5.Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA; 6.Univ Rennes, CNRS, Inst Natl Sci Appl INSA Rennes, Inst FOTON Fonct Opt Technol Informat,UMR 6082, F-35000 Rennes, France; 7.Argonne Natl Lab, Div X Ray Sci, Argonne, IL 60439 USA; 8.Rice Univ, Smalley Curl Inst, Houston, TX 77005 USA; 9.Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77005 USA; 10.LANL, Div Theoret Chem & Mol Phys, Los Alamos, NM 87545 USA |
推荐引用方式 GB/T 7714 | Tsai, Hsinhan,Asadpour, Reza,Blancon, Jean-Christophe,et al. Light-induced lattice expansion leads to high-efficiency perovskite solar cells[J]. SCIENCE,2018,360(6384):67-70. |
APA | Tsai, Hsinhan.,Asadpour, Reza.,Blancon, Jean-Christophe.,Stoumpos, Constantinos C..,Durand, Olivier.,...&Mohite, Aditya D..(2018).Light-induced lattice expansion leads to high-efficiency perovskite solar cells.SCIENCE,360(6384),67-70. |
MLA | Tsai, Hsinhan,et al."Light-induced lattice expansion leads to high-efficiency perovskite solar cells".SCIENCE 360.6384(2018):67-70. |
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