Yeo, Inah Kim, Doukyun Lee, Kyu-Tae Kim, Jong Su Song, Jin Dong Park, Chul-Hong Han, Il Ki 2024-01-19T17:04:19Z 2024-01-19T17:04:19Z 2021-09-05 2020-07 2079-4991 https://pubs.kist.re.kr/handle/201004/118449 We investigate the quantum confinement effects on excitons in several types of strain-free GaAs/Al0.3Ga0.7As droplet epitaxy (DE) quantum dots (QDs). By performing comparative analyses of energy-dispersive X-ray spectroscopy with the aid of a three-dimensional (3D) envelope-function model, we elucidate the individual quantum confinement characteristics of the QD band structures with respect to their composition profiles and the asymmetries of their geometrical shapes. By precisely controlling the exciton oscillator strength in strain-free QDs, we envisage the possibility of tailoring light-matter interactions to implement fully integrated quantum photonics based on QD single-photon sources (SPSs). English MDPI Comparative Chemico-Physical Analyses of Strain-Free GaAs/Al0.3Ga0.7As Quantum Dots Grown by Droplet Epitaxy Article 10.3390/nano10071301 1 NANOMATERIALS, v.10, no.7 NANOMATERIALS 10 7 scie scopus 000554189300001 2-s2.0-85089370966 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article droplet epitaxy strain-free quantum dot TEM-EDS