Unveiling the additive-assisted oriented growth of perovskite crystallite for high performance light-emitting diodes

Lin Zhu, Hui Cao, Chen Xue, Hao Zhang, Minchao Qin, Jie Wang, Kaichuan Wen, Zewu Fu, Tao Jiang, Lei Xu, Ya Zhang, Yu Cao, Cailing Tu, Ju Zhang, Dawei Liu, Guangbin Zhang, Decheng Kong, Ning Fan, Gongqiang Li, Chang Yi, Qiming Peng, Jin Chang, Xinhui Lu, Nana Wang (), Wei Huang () and Jianpu Wang ()
Additional contact information
Lin Zhu: Nanjing Tech University (NanjingTech)
Hui Cao: Nanjing Tech University (NanjingTech)
Chen Xue: Northwestern Polytechnical University (NPU)
Hao Zhang: Nanjing Tech University (NanjingTech)
Minchao Qin: The Chinese University of Hong Kong
Jie Wang: Nanjing Tech University (NanjingTech)
Kaichuan Wen: Nanjing Tech University (NanjingTech)
Zewu Fu: Nanjing Tech University (NanjingTech)
Tao Jiang: Nanjing Tech University (NanjingTech)
Lei Xu: Nanjing Tech University (NanjingTech)
Ya Zhang: Nanjing Tech University (NanjingTech)
Yu Cao: Nanjing Tech University (NanjingTech)
Cailing Tu: Nanjing Tech University (NanjingTech)
Ju Zhang: Nanjing Tech University (NanjingTech)
Dawei Liu: Nanjing Tech University (NanjingTech)
Guangbin Zhang: Nanjing Tech University (NanjingTech)
Decheng Kong: Nanjing Tech University (NanjingTech)
Ning Fan: Nanjing Tech University (NanjingTech)
Gongqiang Li: Nanjing Tech University (NanjingTech)
Chang Yi: Nanjing Tech University (NanjingTech)
Qiming Peng: Nanjing Tech University (NanjingTech)
Jin Chang: Nanjing Tech University (NanjingTech)
Xinhui Lu: The Chinese University of Hong Kong
Nana Wang: Nanjing Tech University (NanjingTech)
Wei Huang: Nanjing Tech University (NanjingTech)
Jianpu Wang: Nanjing Tech University (NanjingTech)

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract Solution-processed metal halide perovskites have been recognized as one of the most promising semiconductors, with applications in light-emitting diodes (LEDs), solar cells and lasers. Various additives have been widely used in perovskite precursor solutions, aiming to improve the formed perovskite film quality through passivating defects and controlling the crystallinity. The additive’s role of defect passivation has been intensively investigated, while a deep understanding of how additives influence the crystallization process of perovskites is lacking. Here, we reveal a general additive-assisted crystal formation pathway for FAPbI3 perovskite with vertical orientation, by tracking the chemical interaction in the precursor solution and crystallographic evolution during the film formation process. The resulting understanding motivates us to use a new additive with multi-functional groups, 2-(2-(2-Aminoethoxy)ethoxy)acetic acid, which can facilitate the orientated growth of perovskite and passivate defects, leading to perovskite layer with high crystallinity and low defect density and thereby record-high performance NIR perovskite LEDs (~800 nm emission peak, a peak external quantum efficiency of 22.2% with enhanced stability).

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-25407-8 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25407-8

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-021-25407-8

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().