TY - JOUR
T1 - Highly stretchable white-light electroluminescent devices with gel-type silica-coated all-inorganic perovskite
AU - Lee, Sang Yeop
AU - Jeon, Sanghyun
AU - Ahn, Junhyuk
AU - Bang, Junsung
AU - Woo, Ho Kun
AU - Lee, Kyu joon
AU - Jung, Byung Ku
AU - Park, Taesung
AU - Son, Donghee
AU - Ahn, Jae Pyoung
AU - Oh, Soong Ju
N1 - Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2019R1C1C1003319), and Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT (NRF-2018M3D1A1059001). This work is also supported by the Materials Innovation Project (NRF-2021M3H4A3026733) through the National Research Foundation of Korea (NRF), and by a Korea University Grant.
Publisher Copyright:
© 2021
PY - 2021/10/15
Y1 - 2021/10/15
N2 - 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'éclairage (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.
AB - 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'éclairage (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.
KW - Cesium lead halide perovskite
KW - Stretchable device
KW - Surface chemistry
KW - Surface modification
KW - White light
UR - http://www.scopus.com/inward/record.url?scp=85108738191&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2021.150229
DO - 10.1016/j.apsusc.2021.150229
M3 - Article
AN - SCOPUS:85108738191
SN - 0169-4332
VL - 563
JO - Applied Surface Science
JF - Applied Surface Science
M1 - 150229
ER -