The hole transport layer with ammonia-modified to improve luminescence efficiency of all-inorganic perovskite light-emitting diodes

Hsieh, Chung-Hui; Huang, Chien-Hao; Chu, Po-Lun; Chu, Sheng−Yuan; Chen, Peter

doi:10.1016/j.orgel.2021.106418

Cited by 1 publication

(2 citation statements)

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“…In order to solve the luminescence quenching between PEDOT:PSS and CsPbBr 3 , the authors mixed PE-DOT:PSS with MoO 3 ammonia solution in a certain proportion, which not only improved the injection of holes and crystallization of the perovskite film but also avoided the etching of the anode by acid PEDOT:PSS. In 2022, Chu et al [59] reported CsPbBr 3 -based GPeLEDs by modifying the PEDOT:PSS transport layer with ammonia solution, and the maximum luminescence of the device was increased by 5 times, and the current efficiency and EQE were both increased by 2.6 times. In 2023, Yang et al [60] fabricated GPeLEDs by using Si as the substrate, polyethyleneimine (PEIE) modified ZnO as an electron transport layer and poly(9-vinylcarbazole) (PVK) as HTL.…”

Section: D Perovskite Filmsmentioning

confidence: 99%

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Frontiers in Green Perovskite Light‐Emitting Diodes

Yu,

Li,

Zhao

et al. 2023

Laser & Photonics Reviews

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Perovskite, as a star fluorescent material, has the characteristics of adjustable luminescence peak, high color purity, high photoluminescence quantum yield, and low cost, showing significant potential in the photoelectric field. Among the RGB colors for display devices, green is the most sensitive color for human eyes, and green perovskite light‐emitting diodes (GPeLEDs) have aroused much interest in recent years. In this work, the research history of GPeLEDs is reviewed, the perovskites of different dimensions are introduced, and the common synthesis methods of perovskites are discussed. Besides, the strategies to improve the stability and luminous efficiency of GPeLEDs are summarized, including component engineering, phase engineering, ligand engineering, additive engineering, interface engineering, and optical coupling structure strategy. Finally, the development state of GPeLEDs is summarized and prospected. This work is expected to stimulate more unprecedented achievements derived from GPeLEDs, thus promoting their practical applications in future ultra‐high‐definition displays.

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Section: D Perovskite Filmsmentioning

confidence: 99%

“…In 2022, Chu et al. [ 59 ] reported CsPbBr 3 ‐based GPeLEDs by modifying the PEDOT:PSS transport layer with ammonia solution, and the maximum luminescence of the device was increased by 5 times, and the current efficiency and EQE were both increased by 2.6 times. In 2023, Yang et al.…”

Section: The Fundamentals Of Gpeledsmentioning

confidence: 99%