Zero-Bias Operation of CVD Graphene Photodetector with Asymmetric Metal Contacts
Source abstract
Abstract
The responsivity of a graphene photodetector was substantially enhanced by modulating the potential gradient in a chemical vapor deposition-grown graphene channel using asymmetric metal contacts such as Ti, Pd, and Au for the source and drain. The photoresponsivity of a graphene photodetector with an asymmetric Au–Ti contact combination increased to 52 mA/W at an illumination power density of 0.25 μW/cm 2; this photoresponsivity is ∼63 times higher than that of a graphene photodetector having a symmetric Au–Au contact combination (0.82 mA/W).
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Graphene research and applications · Nanowire Synthesis and Applications · 2D Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Center for Emerging Electronic Devices and Systems, School of Material Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju, 61005, South Korea
Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil, Jeongeup-Si, Jeollabuk-Do 56212, South Korea
Funding
Ministry of Science, ICT and Future Planning
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