Publication
Title
Achieving high moisture tolerance in pseudohalide perovskite nanocrystals for light-emitting diode application
Author
Abstract
The addition of potassium thiocyanate (KSCN) to the FAPbBr3 structure and subsequent post-treatment of nanocrystals (NCs) lead to high quantum confinement, resulting in a photoluminescent quantum yield (PLQY) approaching unity and microsecond decay times. This synergistic approach demonstrated exceptional stability under humid conditions, retaining 70% of the PLQY for over a month, while the untreated NCs degrade within 24 h. Additionally, the devices incorporating the post-treated NCs displayed 1.5% external quantum efficiency (EQE), a 5-fold improvement over untreated devices. These results provide promising opportunities for the use of perovskites in moisture-stable optoelectronics.
Language
English
Source (journal)
ACS applied optical materials
Publication
2023
DOI
10.1021/ACSAOM.3C00096
Volume/pages
1 :6 (2023) , p. 1184-1191
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Project info
Low dose in situ electron microscopy study on metal halide perovskites: Unravelling the role of defects and degradation mechanisms under bias, oxygen and moisture.
Hybrid perovskites as a material platform for conversion, emission and detection of light (PROCEED).
3D Structure of nanomaterials under realistic conditions (REALNANO).
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Record
Identifier
Creation 27.11.2023
Last edited 28.11.2023
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