Strongly-Confined CsPbBr 3 Perovskite Quantum Dots with Ultralow Trap Density and Narrow Size Distribution for Efficient Pure-Blue Light-Emitting Diodes
The development of pure-blue perovskite light-emitting diodes (PeLEDs) faces challenges of spectral stability and low external quantum efficiency (EQE) due to phase separation in mixed halide compositions. Perovskite quantum dots (QDs) with strong confinement effects are promising alternatives to ac...
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| Published in | Small (Weinheim an der Bergstrasse, Germany) p. e2400885 |
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| Main Authors | , , , , , , , , |
| Format | Journal Article |
| Language | English |
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15.04.2024
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| Abstract | The development of pure-blue perovskite light-emitting diodes (PeLEDs) faces challenges of spectral stability and low external quantum efficiency (EQE) due to phase separation in mixed halide compositions. Perovskite quantum dots (QDs) with strong confinement effects are promising alternatives to achieve high-quality pure-blue PeLEDs, yet their performance is often hindered by the poor size distribution and high trap density. A strategy combining thermodynamic control with a polishing-driven ligand exchange process to produce high-quality QDs is developed. The strongly-confined pure-blue (≈470 nm) CsPbBr
QDs exhibit narrow size distribution (12% dispersion) and are achieved in Br-rich ion environment based on growth thermodynamic control. Subsequent polishing-driven ligand exchange process removes imperfect surface sites and replaces initial long-chain organic ligands with short-chain benzene ligands. The resulting QDs exhibit high photoluminescence quantum yield (PLQY) to near-unity. The resulting PeLEDs exhibit a pure-blue electroluminescence (EL) emission at 472 nm with narrow full-width at half-maximum (FWHM) of 25 nm, achieving a maximum EQE of 10.7% and a bright maximum luminance of 7697 cd m
. The pure-blue PeLEDs show ultrahigh spectral stability under high voltage, a low roll-off of EQE, and an operational half-lifetime (T
) of 127 min at an initial luminance of 103 cd m
under continuous operation. |
|---|---|
| AbstractList | The development of pure-blue perovskite light-emitting diodes (PeLEDs) faces challenges of spectral stability and low external quantum efficiency (EQE) due to phase separation in mixed halide compositions. Perovskite quantum dots (QDs) with strong confinement effects are promising alternatives to achieve high-quality pure-blue PeLEDs, yet their performance is often hindered by the poor size distribution and high trap density. A strategy combining thermodynamic control with a polishing-driven ligand exchange process to produce high-quality QDs is developed. The strongly-confined pure-blue (≈470 nm) CsPbBr
QDs exhibit narrow size distribution (12% dispersion) and are achieved in Br-rich ion environment based on growth thermodynamic control. Subsequent polishing-driven ligand exchange process removes imperfect surface sites and replaces initial long-chain organic ligands with short-chain benzene ligands. The resulting QDs exhibit high photoluminescence quantum yield (PLQY) to near-unity. The resulting PeLEDs exhibit a pure-blue electroluminescence (EL) emission at 472 nm with narrow full-width at half-maximum (FWHM) of 25 nm, achieving a maximum EQE of 10.7% and a bright maximum luminance of 7697 cd m
. The pure-blue PeLEDs show ultrahigh spectral stability under high voltage, a low roll-off of EQE, and an operational half-lifetime (T
) of 127 min at an initial luminance of 103 cd m
under continuous operation. Abstract The development of pure‐blue perovskite light‐emitting diodes (PeLEDs) faces challenges of spectral stability and low external quantum efficiency (EQE) due to phase separation in mixed halide compositions. Perovskite quantum dots (QDs) with strong confinement effects are promising alternatives to achieve high‐quality pure‐blue PeLEDs, yet their performance is often hindered by the poor size distribution and high trap density. A strategy combining thermodynamic control with a polishing‐driven ligand exchange process to produce high‐quality QDs is developed. The strongly‐confined pure‐blue (≈470 nm) CsPbBr 3 QDs exhibit narrow size distribution (12% dispersion) and are achieved in Br‐rich ion environment based on growth thermodynamic control. Subsequent polishing‐driven ligand exchange process removes imperfect surface sites and replaces initial long‐chain organic ligands with short‐chain benzene ligands. The resulting QDs exhibit high photoluminescence quantum yield (PLQY) to near‐unity. The resulting PeLEDs exhibit a pure‐blue electroluminescence (EL) emission at 472 nm with narrow full‐width at half‐maximum (FWHM) of 25 nm, achieving a maximum EQE of 10.7% and a bright maximum luminance of 7697 cd m −2 . The pure‐blue PeLEDs show ultrahigh spectral stability under high voltage, a low roll‐off of EQE, and an operational half‐lifetime (T 50 ) of 127 min at an initial luminance of 103 cd m −2 under continuous operation. |
| Author | Hu, Jingcong de de Leeuw, Nora H Lu, Yue Wei, Shibo Ren, Ke Wang, Xingyu Wang, Wenxin Sui, Manling Bi, Chenghao |
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| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/38616736$$D View this record in MEDLINE/PubMed |
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| Cites_doi | 10.1002/adma.202006722 10.1038/s41586-022-05486-3 10.1002/adom.202300473 10.1021/acs.nanolett.2c03062 10.1038/s41586-021-03217-8 10.1021/acsanm.7b00212 10.1021/acs.nanolett.9b01666 10.1038/s41566-020-00732-4 10.1038/s41586-021-03997-z 10.1021/acs.nanolett.3c00548 10.1021/acsenergylett.0c00057 10.1021/acsnano.2c02795 10.1038/s41467-019-13580-w 10.1016/j.nanoen.2022.106974 10.1016/j.apsusc.2023.157289 10.1002/advs.201500194 10.1002/adma.202209002 10.1016/j.nantod.2022.101449 10.1021/acsenergylett.2c02613 10.1002/adfm.201600109 10.1021/acsenergylett.3c01576 10.1021/acsami.6b08528 10.1002/adma.201900767 10.1038/s41586-018-0575-3 10.1038/s41377-022-00855-z 10.1021/acsenergylett.8b01441 10.1002/adfm.201902008 10.1007/s12274-018-2266-7 10.3390/nano9081147 10.1021/jacs.1c12556 10.1021/acs.jpclett.9b00290 10.1021/acsnano.7b06363 10.1038/s41563-018-0018-4 10.1126/science.287.5455.1011 10.1002/ange.202004668 10.1021/acsenergylett.1c00291 10.1038/nmat4526 |
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| Snippet | The development of pure-blue perovskite light-emitting diodes (PeLEDs) faces challenges of spectral stability and low external quantum efficiency (EQE) due to... Abstract The development of pure‐blue perovskite light‐emitting diodes (PeLEDs) faces challenges of spectral stability and low external quantum efficiency... |
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| Title | Strongly-Confined CsPbBr 3 Perovskite Quantum Dots with Ultralow Trap Density and Narrow Size Distribution for Efficient Pure-Blue Light-Emitting Diodes |
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