Nanostructured texturing of CH3NH3PbI3 perovskite thin film on flexible substrate for photodetector application
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 284-289 |
Journal / Publication | Organic Electronics |
Volume | 71 |
Online published | 23 May 2019 |
Publication status | Published - Aug 2019 |
Externally published | Yes |
Link(s)
Abstract
Large-area nanostructured hybrid CH3NH3PbI3 perovskite thin films are fabricated via a direct one-step blade method on nanograting-patterned flexible cyclic olefin copolymer (COC) substrate in ambient condition. The nanostructure of perovskite films can be well controlled with high crystalline quality, revealed by X-ray diffraction (XRD) and photoluminescence (PL) characterization. Flexible photodetectors with nanostructured perovskite thin films demonstrate better performance than their counterparts with flat perovskite films. Numerical modeling of the local energy distribution of incident light reveals the contribution of nanostructures directly textured in perovskite films to the light absorption enhancement. The blade-coated CH3NH3PbI3 photodetector with the nanostructured texturing exhibits a high detectivity of 1.21 × 109 Jones and a responsivity of 0.36 A/W, which are 15% and 47% higher compared with the photodetector with the flat perovskite film, respectively. Our work offers a facile etching-free process that can create high crystalline nanostructured perovskite films for high-performance photodetectors over large-area flexible substrates.
Research Area(s)
- Etching-free process, Organometal halide perovskites, Photodetectors
Citation Format(s)
Nanostructured texturing of CH3NH3PbI3 perovskite thin film on flexible substrate for photodetector application. / Chen, Liyang; Cai, Jingxuan; Li, Jingzhou et al.
In: Organic Electronics, Vol. 71, 08.2019, p. 284-289.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review