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Eliminating Hysteresis of Perovskite Solar Cells with Hollow TiO2 Mesoporous Electron Transport Layer
Han Wensheng1,3; Wang Yongling1,2; Wan Jiawei1,2; Wang Dan1,2
2022-02-01
Source PublicationCHEMICAL RESEARCH IN CHINESE UNIVERSITIES
ISSN1005-9040
Volume38Issue:1Pages:117-122
AbstractCurrent density-voltage(J-V) hysteresis issue caused by unbalanced charge transport has greatly limited the improvement of power conversion efficiency(PCE) of halide perovskite solar cells(PSCs). Herein, hollow TiO2 mesoporous electron transport layer(ETL) was used to fabricate PSCs. The structure-dependent charge collection as well as its effect on PCE and hysteresis impactor(HI) of PSC were investigated. The results demonstrate that TiO2 hollow spheres in a size of around 50 nm (HS-50) can form a high quality perovskite/ETL interface with a less trap density. Moreover, the hollow TiO2 with the thin shell can help promote the extraction of electrons from perovskite layer to ETL, so as to reduce the charge accumulation and recombination at the perovskite/ETL interface and alleviate the hysteresis behavior. As a result, PSCs with HS-50 TiO2 delivered a champion PCE of 16.81% with a small HI of 0.0297, indicating a better performance than the commercial P25(PCE of 15.87%, HI of 0.2571).
KeywordHollow structure Titanium dioxide Hysteresis Halide perovskite solar cell Charge collection
DOI10.1007/s40242-022-1401-x
Language英语
WOS KeywordHALIDE PEROVSKITES ; V HYSTERESIS ; STABILITY
Funding ProjectKey Projects in the National Science & Technology Pillar Program in the Eleventh Five-Year Plan Period, China[2008BAC43B01] ; Fundamental Research Funds for the Central Universities, China[2017XS058]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationKey Projects in the National Science & Technology Pillar Program in the Eleventh Five-Year Plan Period, China ; Fundamental Research Funds for the Central Universities, China
WOS IDWOS:000745758000003
PublisherHIGHER EDUCATION PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51794
Collection中国科学院过程工程研究所
Corresponding AuthorWan Jiawei; Wang Dan
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Gunma Univ, Grad Sch Sci & Technol, 1-5-1 Tenjin Cho, Gunma 3768515, Japan
Recommended Citation
GB/T 7714
Han Wensheng,Wang Yongling,Wan Jiawei,et al. Eliminating Hysteresis of Perovskite Solar Cells with Hollow TiO2 Mesoporous Electron Transport Layer[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2022,38(1):117-122.
APA Han Wensheng,Wang Yongling,Wan Jiawei,&Wang Dan.(2022).Eliminating Hysteresis of Perovskite Solar Cells with Hollow TiO2 Mesoporous Electron Transport Layer.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,38(1),117-122.
MLA Han Wensheng,et al."Eliminating Hysteresis of Perovskite Solar Cells with Hollow TiO2 Mesoporous Electron Transport Layer".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 38.1(2022):117-122.
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