Investigation of hybrid InSb and GaSb quantum nanostructures
Author
Zon, Korkerdsantisuk T, Sangpho A, Thainoi S, Prasatsap U, Kiravittaya S, Thornyanadacha N, Tandaechanurat A, Nuntawong N, Sopitpan S, Yordsri V, Thanachayanont C, Kanjanachuchai S, Ratanathammaphan S, Panyakeow S
Chulalongkorn University; Naresuan University; National Science & Technology Development Agency - Thailand; Chulalongkorn University; National Science & Technology Development Agency - Thailand; National Electronics & Computer Technology Center (NECTEC); National Science & Technology Development Agency - Thailand; National Metal & Materials Technology Center (MTEC)
Type
Article
Source Title
MICROELECTRONIC ENGINEERING
ISSN
0167-9317
Year
2021
Volume
237
Page
-
Open Access
Bronze
Publisher
ELSEVIER
DOI
10.1016/j.mee.2020.111494
Format
PDF
Abstract
Hybrid InSb and GaSb nanostructures (NSs) with different repeated cycles; one, two and four, are inserted in double AlGaAs/GaAs hetemstmctures by molecular beam epitaxy in Stranski-Krastanov mode. Their morphologies and cross-sectional structure are inspected by atomic force microscopy and transmission electron microscopy. Raman spectroscopy reveals the effect of strains produced by the presence of InSb and GaSb NSs. Optical properties of hybrid InSb and GaSb NSs are investigated by power- and temperature-dependent photoluminescence (PL) spectroscopy. Broad and strong PL emission of hybrid NSs are observed from 20 K to room temperature. The Ohmic contacts are performed by gold alloys metallization and gold bonding on the p-n heterojunction devices for electrical current density-voltage characterization of the devices. Photovoltaic effect of hybrid quantum NS-devices with different NS-cycles are tested and recorded under various illumination intensities. Spectral response at long wavelength in infrared region beyond 1 mu m originated from the presence of hybrid NSs is detected.
National Science and Technology Development Agency (NSTDA), Thailand [FDA-CO-2558-1407-TH]; Asian Office of Aerospace Research and Development (AOARD); Office of Naval Research Global (ONRG), United States [FA 2386-16-1-4003]; Thailand Research Fund (TRF) [DPG5380002]; NANOTEC of Thailand [RES_50_016_21_016]; Chulalongkorn University; Ratchadaphisek Somphot Fund for Postdoctoral Fellowships of Chulalongkorn University; TRF via the Royal Golden Jubilee Ph.D. program [PHD/0078/2561]
