| Autor: |
Bansal, Shonak, Gupta, Anupma, Singla, Manish Kumar, Sharma, Manish, Kumar, Ajay, Rathee, Sarita, Kumar, Parveen |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 3005, p1-8, 8p |
| Abstrakt: |
This paper introduces a research study carried out under ambient room temperature conditions. The study primarily investigates the photodetection properties related to electronic and ultraviolet (UV) optical responses in a photodetector built on an optimized heterojunction of p+-bilayer-graphene(BLG) and n–-zinc-oxide(ZnO) nanowires (NWs). The design and analysis of this photodetector are performed using the Silvaco Atlas TCAD software. The p+- BLG and n–-ZnO NWs heterojunction demonstrate a favorable photodetector rectification efficiency of 1.8×104 at ±1 V. Additionally, it showcases a low zero-bias dark-current-density of 1.2 µA/cm² along with a remarkable Jlight/Jdark ratio of 4.6×104. The photoswitching response time of 0.32 ns with a 3-dB cut-off frequency of 1.1 GHz is achieved for the proposed photodetector at –0.5 V. Moreover, the photodetector achieves a peak external quantum efficiency of 42%, a peak external photocurrent responsivity of 0.11 A/W, and a peak specific detectivity of 1.52×109 Jones –1.0 V and is better than previously reported results. The proposed photodetector based on nanowires holds significant promise for its application as a next-generation optoelectronic device. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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