The Critical State of GaAs Photoconductive Semiconductor Switch in a Capacitive Storage Loop

Article Physics, Applied

Research on the thermal failure mechanism of an opposed-contact gallium arsenide photoconductive semiconductor switch in avalanche mode

Yue Sun et al.

Summary: This study investigates the switching mechanism and thermal process of a gallium arsenide (GaAs) photoconductive semiconductor switch (PCSS). A numerical simulation of the two-dimensional structure is performed using temperature-dependent physical parameters. It is found that the PCSS switches on due to the formation and evolution of multiple powerful avalanche domains triggered by a low-energy laser pulse. The simulation results indicate that the 2D filamentary current flows along the drift path of ionizing centres inside the avalanche domains, leading to filamentary erosion after continuous operation of the PCSS.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2022)

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Article Engineering, Electrical & Electronic

Investigation on the Mechanism of Triggering Efficiency of High-Power Avalanche GaAs Photoconductive Semiconductor Switch

Yue Sun et al.

Summary: The study found that cathode-triggered GaAs PCSS have shorter delay time and lower on-state resistance compared to anode-triggered devices under the same operation conditions. A delay time jitter of approximately 45.6 ps was achieved at a power level of around 4 MW with cathode triggering. The theory of multiple avalanche domains was introduced to explain the influence of laser spot location on triggering efficiency.

IEEE ELECTRON DEVICE LETTERS (2021)

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Review Computer Science, Information Systems

Solid State Switching Control Methods: A Bibliometric Analysis for Future Directions

Akmal Z. Arsad et al.

Summary: This article provides a critical review and analysis of solid-state switching for distribution systems, compiling a list of the most cited articles in the field using the Scopus database. The study focuses on protection strategies, control methods, and future research directions, aiming to strengthen the development concepts in achieving improved operational performance and power quality.

ELECTRONICS (2021)

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Article Engineering, Electrical & Electronic