A High-Speed Optical Remote-Control Switch Based on Giant Persistent Photoconductivity
Source abstract
Abstract
Based on the giant persistent photoconductivity (GPPC) characteristic of VO 2, we report a remote-control switch that allows high-speed switching on/off functionality. The switch, composed of two VO 2 film devices connected in parallel and two semiconductor lasers, can operate multiple electrical devices at near room temperature. The estimated switching-on (off) time of the remote switch is 73 μs (64 μs) with laser intensity of 1.1 × 10 7 W/m 2 at the ambient temperature of 30 °C. The switching-on/off mechanisms can be understood by alternative generation of GPPC at the parallelly connected VO 2 devices and the current division rule. Our high-speed remote VO 2 switch can be applied to many diverse electronic devices such as safety switches, optical computing, and sensors.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Memory and Neural Computing · Transition Metal Oxide Nanomaterials · Neural Networks and Reservoir Computing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Yonsei University, Seoul 120-749, Republic of Korea
Department of Physics and Photo Science, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
Center for Advanced X-ray Science, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
Funding
National Research Foundation of Korea · Gwangju Institute of Science and Technology · Yonsei University
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