Highly stretchable white-light electroluminescent devices with gel-type silica-coated all-inorganic perovskite
- Authors
- Lee, SY[Lee, Sang Yeop]; Jeon, S[Jeon, Sanghyun]; Ahn, J[Ahn, Junhyuk]; Bang, J[Bang, Junsung]; Woo, HK[Woo, Ho Kun]; Lee, KJ[Lee, Kyu-joon]; Jung, BK[Jung, Byung Ku]; Park, T[Park, Taesung]; Son, D[Son, Donghee]; Ahn, JP[Ahn, Jae-Pyoung]; Oh, SJ[Oh, Song Ju]
- Issue Date
- 15-Oct-2021
- Publisher
- ELSEVIER
- Keywords
- Cesium lead halide perovskite; Stretchable device; White light; Surface modification; Surface chemistry
- Citation
- APPLIED SURFACE SCIENCE, v.563
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED SURFACE SCIENCE
- Volume
- 563
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/90858
- DOI
- 10.1016/j.apsusc.2021.150229
- ISSN
- 0169-4332
- Abstract
- In this study, a highly stretchable white-light electroluminescent device is fabricated using chemically designed perovskite nanocrystals (NCs). To incorporate perovskite into a stretchable polymer matrix without any degradation, gel-type silica-coated CsPbBr3 and CsPbBrxI3-x NC inks are prepared using (3-aminopropyl) triethoxysilane (APTES) with a sacrificial solvent of hexane. The chemical, optical, and structural properties of powdered and gel-type perovskite NCs with and without APTES are investigated. Silica shell with APTES treatment improves the stability of perovskite NCs, and gel-type inks improve the dispersivity in the polymer matrix. These enable the fabrication of stretchable and luminescent NC/polymer matrices with enhanced and uniform luminescence properties. By utilizing these materials, we propose a stretchable electroluminescent device emitting strong white light that is close to the ideal white position in Commission Internationale de l'e ' clairage (CIE) with optical simulation. Herein, we fabricate a multi-color filter with high color reproducibility on stretchable blue electroluminescent devices for white-light generation. Furthermore, all-solution-processed, color-filterless, stretchable, white-light electroluminescence devices with excellent optical and mechanical properties are fabricated.
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Collections - Information and Communication Engineering > School of Electronic and Electrical Engineering > 1. Journal Articles
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