Novel Two‐Dimensional NbWO6 Nanosheets for High Performance UV Photodetectors

A new ultraviolet photodetector (UV PD) is successfully fabricated based on 2D NbWO6 (NWO) nanosheets for the first time, which is synthesized by a facile solid‐state reaction, ion exchange and liquid exfoliation process. The NWO nanosheet‐based PDs exhibit excellent UV detecting performance at 1 V...

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Bibliographic Details
Published in:Advanced electronic materials 2024-02, Vol.10 (2), p.n/a
Main Authors: Song, Peilong, Zhang, Yong, Wang, Jinshou, Liu, Hui, Tian, Li
Format: Article
Language:English
Subjects:
image sensing
NbWO6
UV photodetectors
Online Access:Get full text
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Summary:A new ultraviolet photodetector (UV PD) is successfully fabricated based on 2D NbWO6 (NWO) nanosheets for the first time, which is synthesized by a facile solid‐state reaction, ion exchange and liquid exfoliation process. The NWO nanosheet‐based PDs exhibit excellent UV detecting performance at 1 V at 290 nm, high responsivity (378 A W−1), high external quantum efficiency (EQE, 1.6 × 104%), high spectral selectivity (R290/R400 = 8.84 × 103) and fast speed (1.05/88 ms). Furthermore, the NbWO6 nanosheets film based PD shows great potential for the application in UV image sensing. This work provides a feasible strategy for the development of new UV PDs based on other potential layered niobates. High performance two‐dimensional NbWO6 (NWO) nanosheets ultraviolet photodetectors (UV PDs) are reported. The NWO nanosheets are prepared by a simple solid‐state reaction, proton‐exchange and liquid exfoliation process. The NWO nanosheet‐based PDs exhibit excellent UV detecting performance and great potential for the application in UV image sensors.
ISSN:2199-160X
2199-160X
DOI:10.1002/aelm.202300462