Skip to main content

Growth and Characterization of SiGe/SiO2 Core/Shell Nanocrystals on Insulators

Author name : ABDULLAH KAREEM ABDULRAHMAN ALADIM
Publication Date : 2024-05-24
Journal Name : ACS Applied Electronic Materials

Abstract

In this study, we report the growth and characterization of high-quality SiGe/SiO2 core–shell nanocrystals on an insulator. Our approach involves the solid-state dewetting of a germanium (Ge) film deposited via molecular beam epitaxy on an ultrathin silicon-on-insulator film. The resulting nanocrystals exhibit exceptional uniformity, a well-defined hemispherical shape, and distinct crystallographic facets, as confirmed by rigorous analyses using advanced techniques, such as high-resolution transmission electron microscopy and energy-dispersive spectrometry. Furthermore, we successfully integrated these SiGe/SiO2 core/shell nanocrystals into a metal–insulator–semiconductor (MIS) structure. Through current–voltage and impedance spectroscopies, we determine the transport and electrical properties of this integrated system. Our measurements reveal the formation of a Schottky diode with high rectifying behavior

Keywords

silicon−germanium, core/shell nanocrystals, molecular beam epitaxy, solid-state dewetting, silicon-on-insulator, metal-isolant-semiconductor devices and solar cell

Publication Link

https://pubs.acs.org/doi/abs/10.1021/acsaelm.4c00233

Block_researches_list_suggestions

Suggestions to read

HIDS-IoMT: A Deep Learning-Based Intelligent Intrusion Detection System for the Internet of Medical Things
Ahlem . Harchy Ep Berguiga
Generalized first approximation Matsumoto metric
AMR SOLIMAN MAHMOUD HASSAN
Structure–Performance Relationship of Novel Azo-Salicylaldehyde Disperse Dyes: Dyeing Optimization and Theoretical Insights
EBTSAM KHALEFAH H ALENEZY
“Synthesis and Characterization of SnO₂/α-Fe₂O₃, In₂O₃/α-Fe₂O₃, and ZnO/α-Fe₂O₃ Thin Films: Photocatalytic and Antibacterial Applications”
Asma Arfaoui
Contact