Large-scale planar and spherical light-emitting diodes based on arrays of perovskite quantum wires
(2022) In Nature Photonics 16(4). p.284-290- Abstract
Halide perovskites are enticing candidates for highly efficient planar light-emitting diodes (LEDs) with commercial potential in displays and lighting. However, it remains a challenge for conventional solution fabrication processes to fabricate large-scale or non-planar LEDs due to the non-uniformity of perovskite films in conjunction with material stability issues. Here large-area highly uniform arrays of crystalline perovskite quantum wires are grown with emission spectra covering the whole visible range. Photoluminescence quantum yield of up to 92% and 5,644 hours as the time for photoluminescence to degrade down to its 50% of the initial value under ambient conditions are achieved for MAPbBr3 quantum wires. LEDs based on... (More)
Halide perovskites are enticing candidates for highly efficient planar light-emitting diodes (LEDs) with commercial potential in displays and lighting. However, it remains a challenge for conventional solution fabrication processes to fabricate large-scale or non-planar LEDs due to the non-uniformity of perovskite films in conjunction with material stability issues. Here large-area highly uniform arrays of crystalline perovskite quantum wires are grown with emission spectra covering the whole visible range. Photoluminescence quantum yield of up to 92% and 5,644 hours as the time for photoluminescence to degrade down to its 50% of the initial value under ambient conditions are achieved for MAPbBr3 quantum wires. LEDs based on these quantum wires on rigid and flexible planar substrates are fabricated up to a four-inch wafer size and also unique three-dimensional spherical LEDs with outstanding uniformity are reported. The results suggest that the approach developed here can be generalized to other unconventional three-dimensional LEDs in the future.
(Less)
- author
- organization
- publishing date
- 2022-04
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nature Photonics
- volume
- 16
- issue
- 4
- pages
- 7 pages
- publisher
- Nature Publishing Group
- external identifiers
-
- scopus:85127383083
- ISSN
- 1749-4885
- DOI
- 10.1038/s41566-022-00978-0
- language
- English
- LU publication?
- yes
- id
- 6bc9388d-57b8-4341-a5e1-8cb652280802
- date added to LUP
- 2022-06-07 15:18:27
- date last changed
- 2023-11-21 01:40:38
@article{6bc9388d-57b8-4341-a5e1-8cb652280802, abstract = {{<p>Halide perovskites are enticing candidates for highly efficient planar light-emitting diodes (LEDs) with commercial potential in displays and lighting. However, it remains a challenge for conventional solution fabrication processes to fabricate large-scale or non-planar LEDs due to the non-uniformity of perovskite films in conjunction with material stability issues. Here large-area highly uniform arrays of crystalline perovskite quantum wires are grown with emission spectra covering the whole visible range. Photoluminescence quantum yield of up to 92% and 5,644 hours as the time for photoluminescence to degrade down to its 50% of the initial value under ambient conditions are achieved for MAPbBr<sub>3</sub> quantum wires. LEDs based on these quantum wires on rigid and flexible planar substrates are fabricated up to a four-inch wafer size and also unique three-dimensional spherical LEDs with outstanding uniformity are reported. The results suggest that the approach developed here can be generalized to other unconventional three-dimensional LEDs in the future.</p>}}, author = {{Zhang, Daquan and Zhang, Qianpeng and Ren, Beitao and Zhu, Yudong and Abdellah, Mohamed and Fu, Yu and Cao, Bryan and Wang, Chen and Gu, Leilei and Ding, Yucheng and Tsui, Kwong Hoi and Fan, Sufeng and Poddar, Swapnadeep and Shu, Lei and Zhang, Yuting and Kuang, Dai Bin and Liao, Jin Feng and Lu, Yang and Zheng, Kaibo and He, Zhubing and Fan, Zhiyong}}, issn = {{1749-4885}}, language = {{eng}}, number = {{4}}, pages = {{284--290}}, publisher = {{Nature Publishing Group}}, series = {{Nature Photonics}}, title = {{Large-scale planar and spherical light-emitting diodes based on arrays of perovskite quantum wires}}, url = {{http://dx.doi.org/10.1038/s41566-022-00978-0}}, doi = {{10.1038/s41566-022-00978-0}}, volume = {{16}}, year = {{2022}}, }