Graphene and Graphene-Like 2D Materials for Light-Sensing Applications
A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensor Materials".
Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 127
Special Issue Editor
Interests: synthesis of carbon nanomaterials (CNTs, Graphene, reduced Graphene Oxide); synthesis of transition metal chalcogenides in 0D, 1D and 2D form (TiS2, TiS3, MoS2); development of optical; heat and gas detector
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Special Issue Information
Dear Colleagues,
This Special Issue of Sensors is devoted to recent research on the synthesis of graphene and graphene-like 2D materials such as graphene, reduced graphene and transition metal chalcogenides (TiS3, TiS2, MoS2, WS2, NbS3, TaS3, etc.) for light-sensing applications.
Light-sensors (photodetectors) are a crucial part of many everyday appliances. Photodetectors are very useful devices for light detection, imaging science, spectroscopies and optical communication. Due to rapidly growing optical-fiber-based communication networks, the development of high-efficiency and high-speed photodetectors, particularly those operating in the infra-red (IR) range, are in high demand. IR photodetectors are utilized for remote temperature sensing, night vision cameras, astronomy and applications requiring target discrimination. The main problem with existing IR sensing technology is that IR monitoring with acceptable resolution at longer ranges requires a larger array size; if a small array size is used, then the IR detector need to scan the object many times and the detection time is consequently increased. A large detection time is not suitable for modern optoelectronics devices. Apart from high speed, the flexible structure of optical detectors is in high demand for modern optoelectronics devices. Unlike the continuous emphasis on the miniaturization process of conventional microelectronics to increase integration density and eventual performance, the focus of macroelectronics is on the large-area and low-cost development of flexible and wearable devices. Flexible optical detectors are very important to data monitoring systems where the sensor needs to adapt to a given surface.
Recently developed layered materials, such as graphene and transition metal chalcogenides, may be a possible solution for the development of high-performance and flexible optical detectors. Graphene and graphene-like materials show an appropriate and tunable bandgap with a higher carrier mobility (0 to 2eV), which makes them a favoured material for high-efficiency optoelectronic devices.
Therefore, research on different approaches for the fabrication of graphene and graphene-like materials and their utilization in light-sensing applications is of great importance.
Dr. Nishant Tripathi
Guest Editor
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Keywords
- graphene
- transition metal chalcogenides
- photodetectors
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