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Performance and stability-enhanced inorganic perovskite light-emitting devices by employing triton X-100 |
| Ao Chen(陈翱)1,2, Peng Wang(王鹏)1, Tao Lin(林涛)1, Ran Liu(刘然)1, Bo Liu(刘波)1,†, Quan-Jun Li(李全军)1,‡, and Bing-Bing Liu(刘冰冰)1 |
| 1 State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; 2 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China |
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Abstract Significantly enhanced electroluminescence performance and stability of all-inorganic perovskite light-emitting devices (PeLEDs) have been achieved by adding triton X-100 into the perovskite precursors. The small perovskite grains arranged tightly and formed large grains as the triton X-100 were introduced. Thus the nonradiative defects originated from Pb atoms at the grain boundaries were highly passivated by triton X-100 and resulted in the promotion of PeLED performance, including a turn-on voltage of 3.2 V, a brightness of 63500 cd/m2, a current efficiency of 17.4 cd/A, and a prolonged lifetime of 2 h in air.
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Received: 03 September 2020
Revised: 04 October 2020
Accepted manuscript online: 01 December 2020
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PACS:
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85.60.-q
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(Optoelectronic devices)
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85.60.Bt
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(Optoelectronic device characterization, design, and modeling)
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85.60.Jb
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(Light-emitting devices)
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| Fund: Project supported by the National Key Research and Development Program of China (Grant Nos. 2018YFA0305900 and 2016YFA0300404), the National Natural Science Foundation of China (Grant Nos. 11874172, 11374120, 11634004, and 51320105007), and the Science and Technology Innovative Research Project of Jilin University, China (Grant No. 2017TD-01). |
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Corresponding Authors:
†Corresponding author. E-mail: jluliubo@jlu.edu.cn ‡Corresponding author. E-mail: liquanjun@jlu.edu.cn
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Cite this article:
Ao Chen(陈翱), Peng Wang(王鹏), Tao Lin(林涛), Ran Liu(刘然), Bo Liu(刘波), Quan-Jun Li(李全军), and Bing-Bing Liu(刘冰冰) Performance and stability-enhanced inorganic perovskite light-emitting devices by employing triton X-100 2021 Chin. Phys. B 30 048506
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