Conversion of the non-luminous lead-free inorganic halide perovskite variant CsNiCl3 nanocrystals into photoluminescent materials by Cu+ and In3+ doping
All-inorganic CsPbX3 (X = Cl, Br, I) perovskite nanocrystals (NCs) as promising optoelectronic materials have attracted tremendous research interest because of their intense photoluminescence, broad absorption, and tunable bandgap. Even with these fascinating characteristics, their practical applica...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-11-01
|
| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/5.0123508 |
| _version_ | 1797947432987787264 |
|---|---|
| author | Yang Yu Chengyu Li Cheng Li Wei Zhou Peigeng Han Kun Zhao Hui Li Ruifeng Lu |
| author_facet | Yang Yu Chengyu Li Cheng Li Wei Zhou Peigeng Han Kun Zhao Hui Li Ruifeng Lu |
| author_sort | Yang Yu |
| collection | DOAJ |
| description | All-inorganic CsPbX3 (X = Cl, Br, I) perovskite nanocrystals (NCs) as promising optoelectronic materials have attracted tremendous research interest because of their intense photoluminescence, broad absorption, and tunable bandgap. Even with these fascinating characteristics, their practical applications are still suffering from the presence of toxic lead and inadequate stability. Herein, we successfully synthesize CsNiCl3 NCs in a comparatively low-temperature route for the first time. By Cu+ and In3+ doping, CsNiCl3 NCs can be converted from non-luminous into photoluminescent materials. The broad green fluorescence emission at 530 nm of CsNiCl3 NCs with high luminescence intensity and quantum yield (42.2%) is achieved. Broad band emission with a large Stokes shift can be attributed to the recombination process of self-trapped excitons (STEs). The transient fluorescence spectra of the doped CsNiCl3 NCs show two ultra-long lifetimes of about 50 and 120 µs, which are assigned to the STE recombination, indicating that the nonradiative recombination process is suppressed after doping. Our research provides an innovative method for developing environmentally friendly lead-free metal halide NCs. |
| first_indexed | 2024-04-10T21:27:49Z |
| format | Article |
| id | doaj.art-f3e43de5541d43a08fb12d78fb2d4d7f |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-04-10T21:27:49Z |
| publishDate | 2022-11-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-f3e43de5541d43a08fb12d78fb2d4d7f2023-01-19T16:28:28ZengAIP Publishing LLCAPL Materials2166-532X2022-11-011011111110111110-610.1063/5.0123508Conversion of the non-luminous lead-free inorganic halide perovskite variant CsNiCl3 nanocrystals into photoluminescent materials by Cu+ and In3+ dopingYang Yu0Chengyu Li1Cheng Li2Wei Zhou3Peigeng Han4Kun Zhao5Hui Li6Ruifeng Lu7Institute of Ultrafast Optical Physics, Department of Applied Physics and MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaInstitute of Ultrafast Optical Physics, Department of Applied Physics and MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaInstitute of Ultrafast Optical Physics, Department of Applied Physics and MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaInstitute of Ultrafast Optical Physics, Department of Applied Physics and MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaInstitute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, People’s Republic of ChinaInstitute of Ultrafast Optical Physics, Department of Applied Physics and MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaInstitute of Ultrafast Optical Physics, Department of Applied Physics and MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaInstitute of Ultrafast Optical Physics, Department of Applied Physics and MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of ChinaAll-inorganic CsPbX3 (X = Cl, Br, I) perovskite nanocrystals (NCs) as promising optoelectronic materials have attracted tremendous research interest because of their intense photoluminescence, broad absorption, and tunable bandgap. Even with these fascinating characteristics, their practical applications are still suffering from the presence of toxic lead and inadequate stability. Herein, we successfully synthesize CsNiCl3 NCs in a comparatively low-temperature route for the first time. By Cu+ and In3+ doping, CsNiCl3 NCs can be converted from non-luminous into photoluminescent materials. The broad green fluorescence emission at 530 nm of CsNiCl3 NCs with high luminescence intensity and quantum yield (42.2%) is achieved. Broad band emission with a large Stokes shift can be attributed to the recombination process of self-trapped excitons (STEs). The transient fluorescence spectra of the doped CsNiCl3 NCs show two ultra-long lifetimes of about 50 and 120 µs, which are assigned to the STE recombination, indicating that the nonradiative recombination process is suppressed after doping. Our research provides an innovative method for developing environmentally friendly lead-free metal halide NCs.http://dx.doi.org/10.1063/5.0123508 |
| spellingShingle | Yang Yu Chengyu Li Cheng Li Wei Zhou Peigeng Han Kun Zhao Hui Li Ruifeng Lu Conversion of the non-luminous lead-free inorganic halide perovskite variant CsNiCl3 nanocrystals into photoluminescent materials by Cu+ and In3+ doping APL Materials |
| title | Conversion of the non-luminous lead-free inorganic halide perovskite variant CsNiCl3 nanocrystals into photoluminescent materials by Cu+ and In3+ doping |
| title_full | Conversion of the non-luminous lead-free inorganic halide perovskite variant CsNiCl3 nanocrystals into photoluminescent materials by Cu+ and In3+ doping |
| title_fullStr | Conversion of the non-luminous lead-free inorganic halide perovskite variant CsNiCl3 nanocrystals into photoluminescent materials by Cu+ and In3+ doping |
| title_full_unstemmed | Conversion of the non-luminous lead-free inorganic halide perovskite variant CsNiCl3 nanocrystals into photoluminescent materials by Cu+ and In3+ doping |
| title_short | Conversion of the non-luminous lead-free inorganic halide perovskite variant CsNiCl3 nanocrystals into photoluminescent materials by Cu+ and In3+ doping |
| title_sort | conversion of the non luminous lead free inorganic halide perovskite variant csnicl3 nanocrystals into photoluminescent materials by cu and in3 doping |
| url | http://dx.doi.org/10.1063/5.0123508 |
| work_keys_str_mv | AT yangyu conversionofthenonluminousleadfreeinorganichalideperovskitevariantcsnicl3nanocrystalsintophotoluminescentmaterialsbycuandin3doping AT chengyuli conversionofthenonluminousleadfreeinorganichalideperovskitevariantcsnicl3nanocrystalsintophotoluminescentmaterialsbycuandin3doping AT chengli conversionofthenonluminousleadfreeinorganichalideperovskitevariantcsnicl3nanocrystalsintophotoluminescentmaterialsbycuandin3doping AT weizhou conversionofthenonluminousleadfreeinorganichalideperovskitevariantcsnicl3nanocrystalsintophotoluminescentmaterialsbycuandin3doping AT peigenghan conversionofthenonluminousleadfreeinorganichalideperovskitevariantcsnicl3nanocrystalsintophotoluminescentmaterialsbycuandin3doping AT kunzhao conversionofthenonluminousleadfreeinorganichalideperovskitevariantcsnicl3nanocrystalsintophotoluminescentmaterialsbycuandin3doping AT huili conversionofthenonluminousleadfreeinorganichalideperovskitevariantcsnicl3nanocrystalsintophotoluminescentmaterialsbycuandin3doping AT ruifenglu conversionofthenonluminousleadfreeinorganichalideperovskitevariantcsnicl3nanocrystalsintophotoluminescentmaterialsbycuandin3doping |