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Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis
Film morphology and the corresponding structural configuration can profoundly affect the optical performance, especially the random lasing action in organic–inorganic metal-halide perovskite thin films. They can be controlled in both micro- and nano-scale by manipulating different processing paramet...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419175/ https://www.ncbi.nlm.nih.gov/pubmed/36133894 http://dx.doi.org/10.1039/d0na00794c |
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author | Hong, Yu-Heng Kao, Tsung Sheng |
author_facet | Hong, Yu-Heng Kao, Tsung Sheng |
author_sort | Hong, Yu-Heng |
collection | PubMed |
description | Film morphology and the corresponding structural configuration can profoundly affect the optical performance, especially the random lasing action in organic–inorganic metal-halide perovskite thin films. They can be controlled in both micro- and nano-scale by manipulating different processing parameters such as the ratios of engineered solvent mixtures, spin-coating speed and backplane temperature. With the optimized parameters, the synthesized bare perovskite thin films can achieve room-temperature random lasing action with the energy pumping threshold down to 0.9 mJ cm(−2) and the corresponding β factor is estimated to be about 0.14. The bare films also show a long-time lasing reliability, maintaining lasing intensity after an optical pumping of 12 × 10(5) pulses. Meanwhile, in the lifetime test under ambient conditions, the bare films can sustain up to 7 days without any sealing package. Moreover, the perovskite thin films can also be synthesized on flexible substrates with the total area up to 100 cm(2), paving a potential way for fabricating large-area and flexible random lasers in speckle-free laser projection and imaging. |
format | Online Article Text |
id | pubmed-9419175 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | RSC |
record_format | MEDLINE/PubMed |
spelling | pubmed-94191752022-09-20 Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis Hong, Yu-Heng Kao, Tsung Sheng Nanoscale Adv Chemistry Film morphology and the corresponding structural configuration can profoundly affect the optical performance, especially the random lasing action in organic–inorganic metal-halide perovskite thin films. They can be controlled in both micro- and nano-scale by manipulating different processing parameters such as the ratios of engineered solvent mixtures, spin-coating speed and backplane temperature. With the optimized parameters, the synthesized bare perovskite thin films can achieve room-temperature random lasing action with the energy pumping threshold down to 0.9 mJ cm(−2) and the corresponding β factor is estimated to be about 0.14. The bare films also show a long-time lasing reliability, maintaining lasing intensity after an optical pumping of 12 × 10(5) pulses. Meanwhile, in the lifetime test under ambient conditions, the bare films can sustain up to 7 days without any sealing package. Moreover, the perovskite thin films can also be synthesized on flexible substrates with the total area up to 100 cm(2), paving a potential way for fabricating large-area and flexible random lasers in speckle-free laser projection and imaging. RSC 2020-10-31 /pmc/articles/PMC9419175/ /pubmed/36133894 http://dx.doi.org/10.1039/d0na00794c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Hong, Yu-Heng Kao, Tsung Sheng Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis |
title | Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis |
title_full | Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis |
title_fullStr | Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis |
title_full_unstemmed | Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis |
title_short | Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis |
title_sort | room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419175/ https://www.ncbi.nlm.nih.gov/pubmed/36133894 http://dx.doi.org/10.1039/d0na00794c |
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