Chinese Optics Letters, Volume. 19, Issue 3, 030005(2021)
Stable and high performance all-inorganic perovskite light-emitting diodes with anti-solvent treatment Editors' Pick
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Fig. 1. Scanning electron microscopy (SEM) images of perovskite films (a) without MA, (b) with dropped MA after delay of 5 s, and (c) treated with anti-solvent CB and MA.
Fig. 2. (a) X-ray diffraction (XRD) patterns without MA/CsPbBr3, with MA/CsPbBr3, and with MA/CsPbBr3 treated with anti-solvent CB. (b) Normalized PL, (c) PL image only with MA-treated perovskite film, and (d) PL image of perovskite film treated with CB and MA.
Fig. 3. (a) Energy level diagram of the Pe-LEDs. (b) Schematic of device structure.
Fig. 4. Comparison results: (a) J-V, (b) luminance-V, (c) CE-V, and (d) EQE-V.
Fig. 5. (a) Stability characteristics of different devices and (b) comparison between the HODs and EODs.
Table 1. Characteristics of the Measured Pe-LED Devices
View tableView in ArticleTable 1. Characteristics of the Measured Pe-LED Devices
Device No. Structure V T L CEmax (cd·A−1) EQEmax (%) 1 FTO/ZnO/CsPbBr3 (with/without MA)/poly-TPD/Au 2.4 11,088 35.6 5.7 2 FTO/ZnO/CsPbBr3 (with CB)/poly-TPD/Au 2.4 12,622 36.1 5.9 3 FTO/ZnO/CsPbBr3 (with MA)/poly-TPD/Au 2.1 16,855 40.4 7.1 4 FTO/ZnO/CsPbBr3 (with MA)-dropped CB/poly-TPD/Au 2.0 17,866 45.8 8.3
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Sajid Hussain, Ahmad Raza, Fawad Saeed, Abida Perveen, Yan Sikhai, Nasrud Din, Elias E. Elemike, Qianqian Huang, Alagesan Subramanian, Qasim Khan, Wei Lei, "Stable and high performance all-inorganic perovskite light-emitting diodes with anti-solvent treatment," Chin. Opt. Lett. 19, 030005 (2021)
Paper Information
Category: Special Issue on Metal Halide Perovskite and Their Applications
Received: Dec. 8, 2020
Accepted: Jan. 19, 2021
Published Online: Mar. 11, 2021
The Author Email: Alagesan Subramanian (alaphy007@hotmail.com), Qasim Khan (qasim@szu.edu.cn), Wei Lei (lw@seu.edu.cn)
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