EconPapers    
Economics at your fingertips  
 

Ultrapure and efficient electroluminescence in alkali metal doped inorganic perovskite quantum wires arrays

Yang Bryan Cao, Yu Fu, Yu Zhou, Xiao Qiu, Daquan Zhang, Yucheng Ding, Ying Xie, Beitao Ren, Qingsong Shan, Pok Fung Chan, Wenying Tang, Feng Xue, Xiaofei Sun, Kemeng Zhou, Jin-Feng Liao, Zijin Jin, Qianpeng Zhang, Jiannong Wang, Dai-Bin Kuang, Xinhui Lu, Yuanjing Lin, Haibo Zeng () and Zhiyong Fan ()
Additional contact information
Yang Bryan Cao: The Hong Kong University of Science and Technology
Yu Fu: Sun Yat-Sen University
Yu Zhou: The Hong Kong University of Science and Technology
Xiao Qiu: The Hong Kong University of Science and Technology
Daquan Zhang: The Hong Kong University of Science and Technology
Yucheng Ding: The Hong Kong University of Science and Technology
Ying Xie: Heilongjiang University
Beitao Ren: The Hong Kong University of Science and Technology
Qingsong Shan: Nanjing University of Science and Technology
Pok Fung Chan: The Chinese University of Hong Kong
Wenying Tang: The Hong Kong University of Science and Technology
Feng Xue: The Hong Kong University of Science and Technology
Xiaofei Sun: The Hong Kong University of Science and Technology
Kemeng Zhou: Southern University of Science and Technology
Jin-Feng Liao: Sun Yat-Sen University
Zijin Jin: The Hong Kong University of Science and Technology
Qianpeng Zhang: The Hong Kong University of Science and Technology
Jiannong Wang: The Hong Kong University of Science and Technology
Dai-Bin Kuang: Sun Yat-Sen University
Xinhui Lu: The Chinese University of Hong Kong
Yuanjing Lin: Southern University of Science and Technology
Haibo Zeng: Nanjing University of Science and Technology
Zhiyong Fan: The Hong Kong University of Science and Technology

Nature Communications, 2025, vol. 16, issue 1, 1-9

Abstract: Abstract Alkali metal doping has been widely utilized to regulate metal halide perovskites and improve their luminescence performance. However, due to the discordant tolerance factor caused by the smaller size of potassium and rubidium ions, it is still debatable whether they can be incorporated in the cesium perovskite crystal lattice. Here we provide unambiguous evidence for the formation of Rb+ and K+ substitutionally doped stable perovskite cubic crystal structure in the form of quantum wires embedded in nanoporous alumina template. The suppressed inner defects and enhanced exciton binding energy lead to a reduced non-radiative recombination in the co-doped perovskite quantum wires. The perovskite light-emitting diodes with a maximum external quantum efficiency of 17.5%, 21.2%, 24.9% and 30.1% and a maximum luminance of 1638 cd m−2, 3365 cd m−2, 13,483 cd m−2 and 31,706 cd m−2 for electroluminescence peak of 476 nm (primary-blue), 483 nm (sky-blue), 490 nm (sky-blue) and 512 nm (green) are fabricated respectively. Surprisingly, all devices emit high-color purity light with narrow linewidth of ≤16 nm.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-61085-6 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:16:y:2025:i:1:d:10.1038_s41467-025-61085-6

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

DOI: 10.1038/s41467-025-61085-6

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 ().

 
Page updated 2025-07-03
Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-61085-6