GSTDTAP  > 地球科学
DOI10.1126/science.aax3294
Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts
Yang, Shuang1,2; Chen, Shangshang1; Mosconi, Edoardo3; Fang, Yanjun1,2; Xiao, Xun1; Wang, Congcong4; Zhou, Yu1; Yu, Zhenhua1; Zhao, Jingjing1,2; Gao, Yongli4; De Angelis, Filippo3,5,6; Huang, Jinsong1,2
2019-08-02
发表期刊SCIENCE
ISSN0036-8075
EISSN1095-9203
出版年2019
卷号365期号:6452页码:473-+
文章类型Article
语种英语
国家USA; Italy
英文摘要

We show that converting the surfaces of lead halide perovskite to water-insoluble lead (II) oxysalt through reaction with sulfate or phosphate ions can effectively stabilize the perovskite surface and bulk material. These capping lead oxysalt thin layers enhance the water resistance of the perovskite films by forming strong chemical bonds. The wide-bandgap lead oxysalt layers also reduce the defect density on the perovskite surfaces by passivating undercoordinated surface lead centers, which are defect-nucleating sites. Formation of the lead oxysalt layer increases the carrier recombination lifetime and boosts the efficiency of the solar cells to 21.1%. Encapsulated devices stabilized by the lead oxysalt layers maintain 96.8% of their initial efficiency after operation at maximum power point under simulated air mass (AM) 1.5 G irradiation for 1200 hours at 65 degrees C.


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:000485768400042
WOS关键词ION MIGRATION ; DEGRADATION ; PERFORMANCE ; LIGHT ; PASSIVATION ; HYSTERESIS ; TRIHALIDE ; IMPACT
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
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/201990
专题地球科学
资源环境科学
气候变化
作者单位1.Univ N Carolina, Dept Appl Phys Sci, Chapel Hill, NC 27599 USA;
2.Univ Nebraska, Dept Mech & Mat Engn, Lincoln, NE 68588 USA;
3.CNR, ISTM, Computat Lab Hybrid Organ Photovolta CLHYO, Perugia, Italy;
4.Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA;
5.Univ Perugia, Dept Chem Biol & Biotechnol, Via Elce Sotto 8, I-06123 Perugia, Italy;
6.Ist Italiano Tecnol, D3 Computat, Genoa, Italy
推荐引用方式
GB/T 7714
Yang, Shuang,Chen, Shangshang,Mosconi, Edoardo,et al. Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts[J]. SCIENCE,2019,365(6452):473-+.
APA Yang, Shuang.,Chen, Shangshang.,Mosconi, Edoardo.,Fang, Yanjun.,Xiao, Xun.,...&Huang, Jinsong.(2019).Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts.SCIENCE,365(6452),473-+.
MLA Yang, Shuang,et al."Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts".SCIENCE 365.6452(2019):473-+.
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