Zobrazeno 1 - 10
of 550
pro vyhledávání: '"Jong Su Kim"'
Autor:
Behnam Zeinalvand Farzin, S. Bahareh Seyedein Ardebili, Tae In Kang, Jong Su Kim, Phuc Dinh Nguyen, Sang Jun Lee
Publikováno v:
Photonics, Vol 11, Iss 3, p 277 (2024)
InAsPSb is an emerging material used as an efficient barrier in quantum well structures, and the resulting devices can be employed in the mid-infrared region of the electromagnetic spectrum. This study investigates the photoreflectance spectra of two
Externí odkaz:
https://doaj.org/article/f0980f6c68ea467d809161864079c83f
Autor:
Min Baik, Ji-hoon Kyhm, Hang-Kyu Kang, Kwang-Sik Jeong, Jong Su Kim, Mann-Ho Cho, Jin Dong Song
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract We report the growth mechanism and optical characteristics of type-II band-aligned GaSb quantum dots (QDs) grown on GaAs using a droplet epitaxy-driven nanowire formation mechanism with molecular beam epitaxy. Using transmission electron mic
Externí odkaz:
https://doaj.org/article/22f60ddd39664fe28bc1d2c5fff12f56
Autor:
S. Bahareh Seyedein Ardebili, Jong Su Kim, Jaedu Ha, Tae In Kang, Behnam Zeinalvand Farzin, Yeongho Kim, Sang Jun Lee
Publikováno v:
Energies, Vol 16, Iss 3, p 1162 (2023)
We investigated the conduction- and valence-confined energy levels and first band-to-band transition energies of a type-II InAs/GaSb multi-quantum-well at 77 K and room temperature for various well and barrier thicknesses. We calculated the electron
Externí odkaz:
https://doaj.org/article/2005ed7ad85c436e9d413534e143b872
Autor:
Luqman Ali, Fazle Subhan, Muhammad Ayaz, Syed Shams ul Hassan, Clare Chisu Byeon, Jong Su Kim, Simona Bungau
Publikováno v:
Nanomaterials, Vol 12, Iss 19, p 3465 (2022)
Although, quantum dots (QDs) of two-dimensional (2D) molybdenum disulfide (MoS2) have shown great potential for various applications, such as sensing, catalysis, energy storage, and electronics. However, the lack of a simple, scalable, and inexpensiv
Externí odkaz:
https://doaj.org/article/c7ea8082ae8b4d3c9766cd699cba0275
Publikováno v:
Nanomaterials, Vol 12, Iss 14, p 2331 (2022)
Micro-photoluminescence was observed while increasing the excitation power in a single GaAs quantum ring (QR) at 4 K. Fine structures at the energy levels of the ground (N = 1) and excited (N = 2) state excitons exhibited a blue shift when excitation
Externí odkaz:
https://doaj.org/article/a2dbb19bc553418aa16813352743c98d
Publikováno v:
ACS Omega, Vol 3, Iss 8, Pp 8677-8682 (2018)
Externí odkaz:
https://doaj.org/article/471aa3a7379c4b9b89457c2e2b01315e
Publikováno v:
Energies, Vol 14, Iss 3, p 638 (2021)
For examining the carrier movements through tunnel junction, electrically and optically-biased photoreflectance spectroscopy (EBPR and OBPR) were used to investigate the internal electric field in the InGaP/GaAs dual junction solar cell at room tempe
Externí odkaz:
https://doaj.org/article/a705f42e1f8743cf81af5680ca580b01
Publikováno v:
Nanomaterials, Vol 10, Iss 7, p 1301 (2020)
We investigate the quantum confinement effects on excitons in several types of strain-free GaAs/Al 0.3 Ga 0.7 As droplet epitaxy (DE) quantum dots (QDs). By performing comparative analyses of energy-dispersive X-ray spectroscopy with the aid of a thr
Externí odkaz:
https://doaj.org/article/d30db3ecea1748e8823a3f25a199dd50
Publikováno v:
In Ceramics International 1 June 2024 50(11) Part B:20535-20546
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 8, Pp o1631-o1631 (2008)
In the title compound, C21H25NO3, the piperidinone ring adopts a chair conformation with an equatorial orientation of all substituents; the 3-methoxyphenyl groups make a dihedral angle of 60.26 (15)°. The carbonyl group O atom is disordered over two
Externí odkaz:
https://doaj.org/article/f831cf4f9b614cb6b2093be97467c56c