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Manganese-Doped, Lead-Free Double Perovskite Nanocrystals for Bright Orange-Red Emission
[Image: see text] Lead-free halide perovskite nanocrystals (NCs) have recently attracted attention due to their nontoxicity and stability as alternatives to lead-based perovskite NCs. Here, we report undoped and manganese-doped all-inorganic, lead-free double perovskite (DP) NCs: Cs(2)NaIn(x)Bi(1–x)...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181313/ https://www.ncbi.nlm.nih.gov/pubmed/32342006 http://dx.doi.org/10.1021/acscentsci.0c00056 |
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author | Han, Peigeng Zhang, Xue Luo, Cheng Zhou, Wei Yang, Songqiu Zhao, Jianzhang Deng, Weiqiao Han, Keli |
author_facet | Han, Peigeng Zhang, Xue Luo, Cheng Zhou, Wei Yang, Songqiu Zhao, Jianzhang Deng, Weiqiao Han, Keli |
author_sort | Han, Peigeng |
collection | PubMed |
description | [Image: see text] Lead-free halide perovskite nanocrystals (NCs) have recently attracted attention due to their nontoxicity and stability as alternatives to lead-based perovskite NCs. Here, we report undoped and manganese-doped all-inorganic, lead-free double perovskite (DP) NCs: Cs(2)NaIn(x)Bi(1–x)Cl(6) (0 < x < 1) and Cs(2)NaIn(x)Bi(1–x)Cl(6):Mn (0 ≤ x ≤ 1) NCs. Undoped NCs exhibit blue emission. Through doping Mn(2+) ions into Cs(2)NaIn(x)Bi(1–x)Cl(6) NCs, we can avoid self-trapped exciton emission and realize bright orange red emission of Mn(2+) dopants with the highest photoluminescence quantum efficiency of 44.6%. The photoluminescence (PL) is tunable from yellow emission to orange-red emission corresponding to a red shift from 583 to 614 nm with increasing In content. Interestingly, the PL emission of Mn-doped NCs shows a red shift from the bulk size to the nanoscale. The Mn-doped NCs show good stability in air. In addition, we further prove the process of dark self-trapped state-assisted Mn(2+) emission in DP NCs by ultrafast transient absorption techniques. |
format | Online Article Text |
id | pubmed-7181313 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-71813132020-04-27 Manganese-Doped, Lead-Free Double Perovskite Nanocrystals for Bright Orange-Red Emission Han, Peigeng Zhang, Xue Luo, Cheng Zhou, Wei Yang, Songqiu Zhao, Jianzhang Deng, Weiqiao Han, Keli ACS Cent Sci [Image: see text] Lead-free halide perovskite nanocrystals (NCs) have recently attracted attention due to their nontoxicity and stability as alternatives to lead-based perovskite NCs. Here, we report undoped and manganese-doped all-inorganic, lead-free double perovskite (DP) NCs: Cs(2)NaIn(x)Bi(1–x)Cl(6) (0 < x < 1) and Cs(2)NaIn(x)Bi(1–x)Cl(6):Mn (0 ≤ x ≤ 1) NCs. Undoped NCs exhibit blue emission. Through doping Mn(2+) ions into Cs(2)NaIn(x)Bi(1–x)Cl(6) NCs, we can avoid self-trapped exciton emission and realize bright orange red emission of Mn(2+) dopants with the highest photoluminescence quantum efficiency of 44.6%. The photoluminescence (PL) is tunable from yellow emission to orange-red emission corresponding to a red shift from 583 to 614 nm with increasing In content. Interestingly, the PL emission of Mn-doped NCs shows a red shift from the bulk size to the nanoscale. The Mn-doped NCs show good stability in air. In addition, we further prove the process of dark self-trapped state-assisted Mn(2+) emission in DP NCs by ultrafast transient absorption techniques. American Chemical Society 2020-03-17 2020-04-22 /pmc/articles/PMC7181313/ /pubmed/32342006 http://dx.doi.org/10.1021/acscentsci.0c00056 Text en Copyright © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Han, Peigeng Zhang, Xue Luo, Cheng Zhou, Wei Yang, Songqiu Zhao, Jianzhang Deng, Weiqiao Han, Keli Manganese-Doped, Lead-Free Double Perovskite Nanocrystals for Bright Orange-Red Emission |
title | Manganese-Doped, Lead-Free Double Perovskite Nanocrystals
for Bright Orange-Red Emission |
title_full | Manganese-Doped, Lead-Free Double Perovskite Nanocrystals
for Bright Orange-Red Emission |
title_fullStr | Manganese-Doped, Lead-Free Double Perovskite Nanocrystals
for Bright Orange-Red Emission |
title_full_unstemmed | Manganese-Doped, Lead-Free Double Perovskite Nanocrystals
for Bright Orange-Red Emission |
title_short | Manganese-Doped, Lead-Free Double Perovskite Nanocrystals
for Bright Orange-Red Emission |
title_sort | manganese-doped, lead-free double perovskite nanocrystals
for bright orange-red emission |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181313/ https://www.ncbi.nlm.nih.gov/pubmed/32342006 http://dx.doi.org/10.1021/acscentsci.0c00056 |
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