| Autor: |
Hemanth Kumar Bangolla, Yueh-Chien Lee, Wei-Chu Shen, Rajesh Kumar Ulaganathan, Raman Sankar, He-Yun Du, Ruei-San Chen |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Nanomaterials, Vol 13, Iss 15, p 2190 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2079-4991 |
| DOI: |
10.3390/nano13152190 |
| Popis: |
We reported the photoconduction properties of tungsten disulfide (WS2) nanoflakes obtained by the mechanical exfoliation method. The photocurrent measurements were carried out using a 532 nm laser source with different illumination powers. The results reveal a linear dependence of photocurrent on the excitation power, and the photoresponsivity shows an independent behavior at higher light intensities (400–4000 Wm−2). The WS2 photodetector exhibits superior performance with responsivity in the range of 36–73 AW−1 and a normalized gain in the range of 3.5–7.3 10−6 cm2V−1 at a lower bias voltage of 1 V. The admirable photoresponse at different light intensities suggests that WS2 nanostructures are of potential as a building block for novel optoelectronic device applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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