Rollable Ultraviolet Photodetector Based on ZnAl-Layered Double Hydroxide/Polyvinylidene Fluoride Membrane

被引：8
作者：
On, Ba-Da [1 ]
Choi, Geon-Ju [1 ]
Lee, Sang-Seok [1 ]
Park, Il-Kyu [1 ]
机构：
[1] Seoul Natl Univ Sci & Technol, Dept Mat Sci & Engn, Seoul 01811, South Korea
来源：
ADVANCED MATERIALS INTERFACES | 2022年 / 9卷 / 24期
基金：
新加坡国家研究基金会;
关键词：
layered double hydroxide; polyvinylidene fluoride; rollable devices; UV photodetectors; DOUBLE HYDROXIDE; PERFORMANCE; NANOSTRUCTURES; EVOLUTION; GROWTH;
D O I：
10.1002/admi.202201052
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
High-performance, reliable, and rollable ultraviolet (UV) photodetectors have attracted considerable attention for wireless sensor network technology. Despite the improved responsivity of UV photodetectors, high-performance rollable UV photodetectors have not been reported. This paper reports a rollable UV photodetector based on ZnAl-layered double hydroxide (LDH) nanosheets on a porous polyvinylidene fluoride (PVDF) membrane. Vertically aligned ZnAl-LDH nanosheets are grown on a porosity-controlled PVDF membrane. The UV photodetector exhibits an excellent photoresponse at wavelengths below 420 nm, even in curvature with a 0.6 mm radius. The rollable UV photodetector also shows reliable, responsive performance even after 5 000 rolling cycles, indicating the reasonable durability of the ZnAl-LDH nanosheet. The reliable photodetector performance is attributed to the elasticity of the PVDF and the strong interfacial adhesion force between the porous PVDF and ZnAl-LDH nanosheets.
引用
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页数：10
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