Facile Synthesis of Two Dimensional (2D) V<sub>2</sub>O<sub>5</sub> Nanosheets Film towards Photodetectors
Shaotian Wang,
Liangfei Wu,
Hui Zhang,
Zihan Wang,
Qinggang Qin,
Xi Wang,
Yuan Lu,
Liang Li,
Ming Li
Affiliations
Shaotian Wang
Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
Liangfei Wu
Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Hui Zhang
Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
Zihan Wang
Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
Qinggang Qin
Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
Xi Wang
State Key Laboratory of Pulsed Power Laser Technology, Anhui Laboratory of Advanced Laser Technology, Infrared and Low Temperature Plasma Key Laboratory of Anhui Province, National University of Defense Technology, Hefei 230037, China
Yuan Lu
State Key Laboratory of Pulsed Power Laser Technology, Anhui Laboratory of Advanced Laser Technology, Infrared and Low Temperature Plasma Key Laboratory of Anhui Province, National University of Defense Technology, Hefei 230037, China
Liang Li
Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Ming Li
Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Most of the studies focused on V2O5 have been devoted to obtaining specific morphology and microstructure for its intended applications. Two dimensional (2D) V2O5 has the most valuable structure because of its unique planar configuration that can offer more active sites. In this study, a bottom-up and low-cost method that is hydrothermal combined with spin-coating and subsequent annealing was developed to prepare 2D V2O5 nanosheets film on quartz substrate. First, VOOH nanosheets were prepared by the hydrothermal method using V2O5 powders and EG as raw materials. Further, V2O5 nanosheets with an average lateral size over 500 nm and thickness less than 10 nm can be prepared from the parent VOOH nanosheets by annealing at 350 °C for 15 min in air. The prepared V2O5 nanosheets film was assembled of multiple nanosheets. The structural, morphological, microstructural and optical properties of the films were respective investigated by XRD, SEM, TEM and UV-Vis. The photodetector based on V2O5 nanosheets film shows good photoresponse with a response time of 2.4 s and a recovery time of 4.7 s.
