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Zhao X, Wang N, Quan M, Hou A, Liu K, Cui Y, Zhao J, Liu Q. High External Quantum Efficiency and Dual-Band Emission of (C 7H 18N) 3Sb 2Cl 9 for Sensitivity Temperature Sensing. Inorg Chem 2024; 63:10705-10712. [PMID: 38809172 DOI: 10.1021/acs.inorgchem.4c01220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Organic-inorganic hybrid halides have gained attention for their ease of processing and remarkable optoelectronic properties. However, the relationship between the structure and optical properties requires further exploration. In this study, the butyltrimethylammonium cation (C7H18N+) was chosen, and seven compounds were synthesized: (C7H18N)3Sb2X9 (X = Cl, Br), (C7H18N)3Bi2X9 (X = Cl, Br, I), and (C7H18N)(C2H8N)MBr5 (M = Sb, Bi). Crystals with a single organic cation exhibit a zero-dimensional structure, while the introduction of dimethylamine ions increases the crystal dimensionality from zero-dimensional (C7H18N)3Sb2Br9 to one-dimensional (C7H18N)(C2H8N)SbBr5. Under 372 nm excitation, (C7H18N)3Sb2Cl9 showed broad orange-red single-band emission with a high photoluminescence quantum yield of 88.4% and an external quantum efficiency of up to 56.9%. A white light-emitting diode based on (C7H18N)3Sb2Cl9 achieved a high color rendering index of 96.3. Moreover, dual-band emission was observed in (C7H18N)3Sb2Cl9 under 308 nm excitation, which exhibits an absolute temperature sensitivity of 1.96 × 10-3 K-1 (320 K), and a flexible film was prepared by incorporating polydimethylsiloxane. This shows the promise of hybrid metal halides as photoluminescent materials and their possibilities for temperature sensing.
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Affiliation(s)
- Xianlong Zhao
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering and Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Na Wang
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering and Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Mingzhen Quan
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering and Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - An Hou
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering and Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Kunjie Liu
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering and Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yibo Cui
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering and Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jing Zhao
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering and Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Quanlin Liu
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering and Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
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Sun L, Dong B, Sun J, Wang Y, Wang Y, Hu S, Zhou B, Bai X, Xu L, Zhou D, Song H. Efficient and Stable Multicolor Emissions of the Coumarin-Modified Cs 3LnCl 6 Lead-Free Perovskite Nanocrystals and LED Application. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310065. [PMID: 38290534 DOI: 10.1002/adma.202310065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/18/2024] [Indexed: 02/01/2024]
Abstract
Lanthanide-based lead-free perovskite materials hold great promise for the development of high-resolution full-color displays in the future. Here, various Cs3LnCl6 perovskite nanocrystals (NCs) emitting light across the visible to near-infrared spectrum with remarkably high photoluminescence quantum yield (PLQY) are systemically prepared. Especially, by introducing multifunctional coumarin small molecules into Cs3EuCl6 NCs as an intermediate state, Cs3EuCl6 NCs can achieve an impressive PLQY of 92.4% with pure red emission and an exceptional energy transfer efficiency of nearly 93.2%. Furthermore, the lanthanide-based electroluminescent devices in red, green, and blue are successfully fabricated. Among them, the Cs3EuCl6-NC-based red light-emitting diode (LED) demonstrates a FWHM of 18 nm at 617 nm, an external quantum efficiency up to 5.17%, and a maximum brightness of 2373 cd m-2, which is the most excellent reported for lead-free narrowband (within 20 nm) emission devices. Notably, these devices exhibit an operating half-life of 440 h at a brightness level of 100 cd m-2, surpassing the performance of most reported lead-free perovskite LEDs (PLEDs). This work opens up exciting possibilities for the future commercialization of lanthanide-based PLEDs in the display industry, paving the way for more vibrant, energy-efficient, and long-lasting display technologies.
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Affiliation(s)
- Liheng Sun
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Jiao Sun
- Department of Cell Biology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, P. R. China
| | - Yiming Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yuqi Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Songtao Hu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Bingshuai Zhou
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xue Bai
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Lin Xu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Donglei Zhou
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Hongwei Song
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
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