氮化镓极化超结混合二极管中的电流饱和行为

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physica Status Solidi A-applications and Materials Science Pub Date : 2024-07-10 DOI:10.1002/pssa.202300919

Yangming Du, Ekkanath Madathil Sankara Narayanan, Hiroji Kawai, Shuichi Yagi, Hironobu Narui

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引用次数: 0

摘要

这是首次报道在蓝宝石上制造的基于极化超结 (PSJ) 的混合 PiN-Schottky GaN 功率二极管的正向特性中观察到的电流饱和行为。在电流饱和区，大部分施加的阳极电压在紧邻最靠近阴极的掺杂 P-GaN 区域边缘的区域下降。这种显著的电位下降发生在很短的距离内，导致高电场和电子耗竭，从而在这些 PSJ 混合二极管中通过速度饱和产生电流饱和行为。

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Current Saturation Behavior in GaN Polarization Superjunction Hybrid Diode

This is the first report on the current saturation behavior observed in the forward characteristics of polarization superjunction (PSJ)‐based hybrid PiN‐Schottky GaN power diodes fabricated on Sapphire. In the current saturation region, most of the applied anode voltage is dropped across the regions immediately adjacent to the edge of the doped P‐GaN region closest to the cathode. This significant potential drop occurs within a short distance, resulting in a high electric field and depletion of electrons, causing the current saturation behavior via velocity saturation in these PSJ hybrid diodes.

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来源期刊

Physica Status Solidi A-applications and Materials Science 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

393

审稿时长

2 months

期刊介绍： The physica status solidi (pss) journal group is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Among the largest and most established international publications, the pss journals publish reviews, letters and original articles, as regular content as well as in special issues and topical sections.