2024 journal article
Wafer-bonded In<sub>0.53</sub>Ga<sub>0.47</sub>As/GaN p-n diodes with near-unity ideality factor
APPLIED PHYSICS LETTERS, 125(6).
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7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: August 26, 2024
III–V/III-nitride p–n junctions were realized via crystal heterogeneous integration, and the resulting diodes were characterized to analyze electrical behavior and junction quality. p-type In0.53Ga0.47As, which is a well-established base layer in InP heterojunction bipolar transistor (HBT) technology, was used in combination with a homoepitaxial n-type GaN. The latter offers low dislocation density, coupled with high critical electric field and saturation velocity, which are attractive for use in future HBT collector layers. Transmission electron microscopy confirms an abrupt interface in the fabricated heterogeneous diodes. Electrical characterization of the diodes reveals a near-unity ideality factor (n ∼ 1.07) up to 145 °C, a high rectification ratio of ∼108, and a low interface trap density of 3.7 × 1012 cm−2.