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- Title
Fast-response ultraviolet photodetector based on Ta<sub>2</sub>O<sub>5</sub> thin film.
- Authors
Singh, Elangbam Rameshwar; Alam, Mir Waqas; Souayeh, Basma; Singh, Naorem Khelchand
- Abstract
The deposition of a Ta2O5 thin film (TF) onto n-Si substrates was carried out using a conventional electron beam evaporation method. The amorphous structural nature of the Ta2O5 TF was confirmed through XRD analysis, and a growth of approximately 100 nm was observed through cross-sectional FESEM analysis. Electrical analysis of the Ta2O5 TF device was conducted at room temperature, revealing a good detectivity (D*) of 3.189 × 1012 Jones, a low noise equivalent power (NEP) value of 1.5 × 10−12 W, and responsivity of 0.5 A/W. Additionally, the device exhibited a fast-switching response at − 2 V, with fall and rise times of 46 ms and 53 ms, respectively. These findings suggest that the Ta2O5 TF device holds significant promise for photodetector applications.
- Publication
Journal of Materials Science: Materials in Electronics, 2023, Vol 34, Issue 34, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-023-11668-0