Characterization of 4H-SiC Low Gain Avalanche Detectors (LGADs)

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-08-11 DOI:10.1016/j.nima.2025.170873

Tao Yang , Ben Sekely , Yashas Satapathy , Greg Allion , Philip Barletta , Carl Haber , Steve Holland , John F. Muth , Spyridon Pavlidis , Stefania Stucci

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引用次数: 0

Abstract

4H-SiC Low Gain Avalanche Detectors (LGADs) have been fabricated and characterized. The devices employ a circular mesa design with low-resistivity contacts and an SiO₂ passivation layer. The I–V and C–V characteristics of the 4H-SiC LGADs are compared with complementary 4H-SiC PiN diodes to confirm a high breakdown voltage and low leakage current. Both LGADs and PiN diodes were irradiated with

α

particles from a

_{84}^{210} Po

source. The charge collected by each device was compared, and it was observed that low-gain charge carrier multiplication is achieved in the 4H-SiC LGAD.

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4H-SiC低增益雪崩探测器（lgad）的表征

制备并表征了4H-SiC低增益雪崩探测器。该器件采用具有低电阻率触点和SiO2钝化层的圆形台面设计。通过与互补的4H-SiC引脚二极管的I-V和C-V特性进行比较，确定了高击穿电压和低漏电流。用来自84210Po源的α粒子照射LGADs和PiN二极管。比较了各器件收集的电荷，发现在4H-SiC LGAD中实现了低增益的载流子倍增。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.