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[J]. Chinese Optics Letters, 2021, 19(3): 030005
- Chinese Optics Letters
- Vol. 19, Issue 3, 030005 (2021)
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.
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Table 1. Characteristics of the Measured Pe-LED Devices
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