UM  > INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Affiliated with RCfalse
Investigation on the role of amines in the liquefaction and recrystallization process of MAPbI3perovskite
Xi Yuan Feng1,2; Kar Wei Ng1,3; Shuang Peng Wang1,3; Wen Zhou Chen1; Zhen Zhong Zhang4; Wei Chen2; Yun Yang Zhao1; Bao Tu1,2; Zi Kang Tang1,3; Hui Pan1,3; Zhu Bing He2
2020-06-22
Source PublicationJournal of Materials Chemistry A
ISSN2050-7488
Volume8Issue:27Pages:13585-13593
Other Abstract

The amine-induced very fast liquefaction and recrystallization (L&R) process on organic–inorganic hybrid perovskites has been demonstrated to be an effective way to improve the quality of the as-deposited MAPbI3 films and increase the feasibility of preparing large area perovskite solar cells (PSCs). Despite the effectiveness, the reaction mechanism of the L&R process is yet to be well understood. In this work, we investigate the fundamental influences of amines on the structural change of MAPbI3 perovskite by studying the reaction between ammonia and a bulk MAPbI3 crystal. By employing various techniques including in situ X-ray diffraction, Raman spectroscopy and Fourier transform infrared spectroscopy, we find that NH3 effectively substitutes iodine in the perovskite crystal lattice, transforming the 3-dimensional (3D) lattice into a MAPb(NH3)nI3 coordination complex-based system. The resulting coordination complex octahedral structures are only held together by weak forces of attraction, leading to the experimentally observed L&R process. First-principles calculations further confirm the feasibility of such L&R at room temperature. As a proof of concept, we demonstrated the use of liquefaction for substrate recycling of MAPbI3 based solar cells with ammonia. Our results here provide deep insights for understanding the interaction mechanism, which can surely provide important guidance on improving the quality of perovskite films and related devices, as well as the recycling of toxic lead for long-term sustainability.

DOI10.1039/d0ta03995k
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Materials Science ; Energy & Fuels
WOS SubjectChemistry, Physicalenergy & Fuelsmaterials Science, Multidisciplinary
WOS IDWOS:000548452100013
Scopus ID2-s2.0-85090086440
Fulltext Access
Citation statistics
Cited Times [WOS]:5   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorShuang Peng Wang
Affiliation1.Joint Key Laboratory of the Ministry of Education,Institute of Applied Physics and Materials Engineering,University of Macau,Taipa,Avenida da Universidade,999078,Macao
2.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG),Southern University of Science and Technology,Shenzhen,No. 1088, Xueyuan Rd.,China
3.Department of Physics and Chemistry,Faculty of Science and Technology,University of Macau,Taipa,Avenida da Universidade,999078,Macao
4.State Key Laboratory of Luminescence and Applications,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun,No. 3888 Dongnanhu Road,130033,China
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING;  Faculty of Science and Technology
Recommended Citation
GB/T 7714
Xi Yuan Feng,Kar Wei Ng,Shuang Peng Wang,et al. Investigation on the role of amines in the liquefaction and recrystallization process of MAPbI3perovskite[J]. Journal of Materials Chemistry A,2020,8(27):13585-13593.
APA Xi Yuan Feng,Kar Wei Ng,Shuang Peng Wang,Wen Zhou Chen,Zhen Zhong Zhang,Wei Chen,Yun Yang Zhao,Bao Tu,Zi Kang Tang,Hui Pan,&Zhu Bing He.(2020).Investigation on the role of amines in the liquefaction and recrystallization process of MAPbI3perovskite.Journal of Materials Chemistry A,8(27),13585-13593.
MLA Xi Yuan Feng,et al."Investigation on the role of amines in the liquefaction and recrystallization process of MAPbI3perovskite".Journal of Materials Chemistry A 8.27(2020):13585-13593.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xi Yuan Feng]'s Articles
[Kar Wei Ng]'s Articles
[Shuang Peng Wang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xi Yuan Feng]'s Articles
[Kar Wei Ng]'s Articles
[Shuang Peng Wang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xi Yuan Feng]'s Articles
[Kar Wei Ng]'s Articles
[Shuang Peng Wang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.