Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Hyun Gyu Song"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-7 (2022)
Abstract We propose a key factor associated with both surface recombination velocity and radiative efficiency of an LED to estimate its chip size-dependent radiative efficiencies. The validity of the suggested factor is verified through experimental
Externí odkaz:
https://doaj.org/article/1213afac452340cdb95c70a532d75a3d
Autor:
Seongmoon Jun, Minho Choi, Baul Kim, Martina Morassi, Maria Tchernycheva, Hyun Gyu Song, Hwan‐Seop Yeo, Noëlle Gogneau, Yong‐Hoon Cho
Publikováno v:
Small (Weinheim an der Bergstrasse, Germany).
III-Nitride semiconductor-based quantum dots (QDs) play an essential role in solid-state quantum light sources because of their potential for room-temperature operation. However, undesired background emission from the surroundings deteriorates single
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89617641b50a08a09847058d2c28cbaa
https://pubmed.ncbi.nlm.nih.gov/36449654
https://pubmed.ncbi.nlm.nih.gov/36449654
Autor:
Hyun Gyu Song, Yong-Hoon Cho
Publikováno v:
UV and Higher Energy Photonics: From Materials to Applications 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08b80fc9216ad36bfcf10456e60ef728
https://doi.org/10.1117/12.2633187
https://doi.org/10.1117/12.2633187
Publikováno v:
Nature Photonics. 15:582-587
Parity–time reversal symmetry (PT symmetry) in non-Hermitian systems realizes spontaneous symmetry breaking, thereby leading to counterintuitive phenomena. A coupled system with antisymmetric gain/loss profiles is required to introduce PT symmetry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2528d4f9fb035c87aedaac35df548678
https://doi.org/10.1038/s41566-021-00820-z
https://doi.org/10.1038/s41566-021-00820-z
Autor:
Minho Choi, Seongmoon Jun, Kie Young Woo, Hyun Gyu Song, Hwanseop Yeo, Sunghan Choi, Doyoun Park, Chung-Hyun Park, Yong-Hoon Cho
Publikováno v:
Photonic and Phononic Properties of Engineered Nanostructures XII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf86a3f7d59e94e4abe074ae46eacf29
https://doi.org/10.1117/12.2607510
https://doi.org/10.1117/12.2607510
Autor:
Jeonghyeon Park, Hyun Gyu Song, Jong Kyu Kim, Jae Yong Park, Jong Won Lee, Jaeyong Lee, Yong-Hoon Cho, Gyeongwon Ha, Jin Kon Kim, Jong-Lam Lee
Publikováno v:
ACS Applied Materials & Interfaces. 12:36339-36346
We present a remarkable improvement in the efficiency of AlGaN deep-ultraviolet light-emitting diodes (LEDs) enabled by the coupling of localized surface plasmon resonance (LSPR) mediated by a high-density array of Al nanoparticles (NPs). The Al NPs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3481df1a52e60d9c6696081b2f52df62
https://doi.org/10.1021/acsami.0c08916
https://doi.org/10.1021/acsami.0c08916
Autor:
Jin-Ho Kang, Sang-Wan Ryu, Aadil Waseem, Yong-Hoon Cho, Taeyun Kim, Muhammad Ali Johar, Hyun Gyu Song, Mostafa Afifi Hassan, Indrajit V. Bagal
Publikováno v:
Nanoscale Advances. 2:1654-1665
We have demonstrated for the first time the hybrid development of next-generation 3-D hierarchical GaN/InGaN multiple-quantum-well nanowires on a patterned Si nanowire-template. The patterned Si nanowire-template is fabricated using metal-assisted ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29602afadc1286ecd8d679c74b47a459
https://doi.org/10.1039/d0na00115e
https://doi.org/10.1039/d0na00115e
Autor:
Seongmoon Jun, Minho Choi, Baul Kim, Martina Morassi, Maria Tchernycheva, Hyun Gyu Song, Hwan‐Seop Yeo, Noëlle Gogneau, Yong‐Hoon Cho
Publikováno v:
Small. 19:2370031
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fb3afe77fce2aec469b80fe49a230d4
https://doi.org/10.1002/smll.202370031
https://doi.org/10.1002/smll.202370031
Autor:
Hyun Gyu Song, Yong-Hoon Cho, Seongmoon Jun, Hwanseop Yeo, Kie Young Woo, Chunghyun Park, Sunghan Choi, Minho Choi, Doyoun Park
Publikováno v:
ACS nano. 15(7)
Epitaxially grown quantum dots (QDs), especially embedded in photonic structures, play an essential role in various quantum photonic systems as on-demand single-photon sources. However, these QDs often suffer from adjacent unwanted emitters, which co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93fc9ad5b0217c9dde50460a1134df1c
https://pubmed.ncbi.nlm.nih.gov/34165277
https://pubmed.ncbi.nlm.nih.gov/34165277
Publikováno v:
Nano Letters. 19:8454-8460
Semiconductor nanowires are attractive building blocks of optoelectronics due to high efficiency and optical controllability. In particular, the mutual controllability of wavelength and polarization of light is essential for versatile applications su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::149cb190325c1c4696d32cadf3a828a1
https://doi.org/10.1021/acs.nanolett.9b02731
https://doi.org/10.1021/acs.nanolett.9b02731