期刊
MODERN PHYSICS LETTERS B
卷 35, 期 8, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217984921501347
关键词
GaN; Schottky barrier diodes; low frequency noise; temperature
资金
- Key-Area Research and Development Program of Guangdong Province [2020B010173001, 2020B010170002]
- Science and Technology Program of Guangdong [2019A1515012127, 2019A141401005]
This paper investigates the forward bias conduction and LFN characteristics of GaN SBDs, revealing the influences of Schottky barrier inhomogeneities and 1/f noise on noise levels. The temperature dependence of ideality factor and zero bias Schottky barrier height are analyzed, and flicker noise is identified as the main component of LFN in GaN SBDs.
In this paper, the forward bias conduction and low frequency noise (LFN) characteristics of GaN Schottky barrier diodes (SBDs) have been measured and studied in the temperature range from 300 K to 450 K. Based on I-V measured results, the temperature dependence of ideality factor and zero bias Schottky barrier height reveals the inhomogeneities of Schottky barriers at the metal-semiconductor (MS) interface. Further study of the LFN measured results shows that the flicker noise (1/f noise) is the main component of LFN in GaN SBDs. The current dependence of LFN indicates the influences of the Schottky barrier and the series resistance on 1/f noise, and the temperature dependence of LFN is analyzed according to Luo's model and the barrier inhomogeneities model.
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