兰州大学机构库
A reaction-and-assembly approach using monoamine zinc porphyrin for highly stable large-area perovskite solar cells
Li, Xiaochen1; Li, Chunling1; Wu, Yiying2; Cao, J(曹靖)1; Tang, Y(唐瑜)1
2020-04-21
Online publication date2020-04
Source PublicationScience China-Chemistry   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN1674-7291
EISSN1869-1870
Volume63Issue:6Pages:777-784
page numbers8
AbstractInhibiting the irreversible escape of organic cations and iodide species in perovskite films is crucial for the fabrication of efficient and stable perovskite solar cells (PSCs). Here, we develop a reaction-and-assembly approach using monoamine zinc porphyrin (ZnP) to modify methylammonium (MA(+)) lead iodide perovskite film. The amine group in ZnP reacts with MA(+) and I- ions to yield monoammonium zinc porphyrin (ZnP-H+I-). The resultant films show no escape of iodide when immersed in ether solutions. Measurements from space-charge limited currents and transient photoluminescence indicate the modified films have reduced density of defects. These results suggest the formed ZnP-H+I- is bound on the surface and grain boundary of perovskite film to retard migrations of ions. DFT calculations also show that the energy alignment between ZnP-H+ and perovskite facilitates the electron transfer and reduces charge recombination at the perovskite grains. Furthermore, post-treating the ZnP-doped film with ZnP again results in the formation of a one dimension zig-zag coordination polymer on the surface of the perovskite film. The single crystal structure of ZnP shows the polymer layer is formed through the coordination interaction between the Zn(II) metal center and a neighboring monoamine. The polymer facilitates the interfacial charge transfer, and reduces the escape of organic cations and iodide species in perovskite films, thereby keeping the excellent cell performance (20.0%) and further realizing the ion encapsulation. Finally, the modified PSCs retain over 90% of its original efficiency over 2,000 h at 85 degrees C or AM 1.5 G continuous illumination, or over 6,000 h in 45% humidity without encapsulation. This work affords a new strategy to achieve the efficient ions immobilization and encapsulation by in situ reaction and coordination assembly of mono-amine zinc porphyrin.
Keywordions immobilization reaction-and-assembly monoamine porphyrin perovskite solar cells
PublisherSCIENCE PRESS
DOI10.1007/s11426-020-9710-7
Indexed BySCIE
Language英语
Funding ProjectNational Natural Science Foundation of China[21801104][21871121][21431002] ; Young Elite Scientists Sponsorship Program by China Association for Science and Technology[2018QNRC001] ; Fundamental Research Funds for the Central Universities of China[lzujbky-2019-sp01][lzujbky-2019-kb12] ; Special Fund Project of Guiding Scientific and Technological Innovation Development of Gansu Province[2019ZX-04] ; US Department of Energy[DE-FG02-07ER46427]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000528307100004
PublisherSCIENCE PRESS
Original Document TypeArticle ; Early Access
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/369000
Collection兰州大学
化学化工学院
Corresponding AuthorCao, Jing
Affiliation
1.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China
2.Ohio State Univ, Dept Chem & Biochem, Columbus, OH 43210 USA
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
First Signature AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Li, Xiaochen,Li, Chunling,Wu, Yiying,et al. A reaction-and-assembly approach using monoamine zinc porphyrin for highly stable large-area perovskite solar cells[J]. Science China-Chemistry,2020,63(6):777-784.
APA Li, Xiaochen,Li, Chunling,Wu, Yiying,Cao, Jing,&Tang, Yu.(2020).A reaction-and-assembly approach using monoamine zinc porphyrin for highly stable large-area perovskite solar cells.Science China-Chemistry,63(6),777-784.
MLA Li, Xiaochen,et al."A reaction-and-assembly approach using monoamine zinc porphyrin for highly stable large-area perovskite solar cells".Science China-Chemistry 63.6(2020):777-784.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Li, Xiaochen]'s Articles
[Li, Chunling]'s Articles
[Wu, Yiying]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Xiaochen]'s Articles
[Li, Chunling]'s Articles
[Wu, Yiying]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Xiaochen]'s Articles
[Li, Chunling]'s Articles
[Wu, Yiying]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Li-2020-A reaction-and-assembly approach using.pdf
Format: Adobe PDF
No comment.
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.