Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Hyun-Don Song"'
Autor:
Ho-Sang Kwack, Hyun Soo Lim, Hyun-Don Song, Sung-Hoon Jung, Hyun Kyong Cho, Ho-Ki Kwon, Myeong Seok Oh
Publikováno v:
AIP Advances, Vol 2, Iss 2, Pp 022127-022127-5 (2012)
The light output power (LOP) of vertical-type GaN-based light emitting diodes (LED) with surface roughness (texture) can be changed by texture size, density, and thickness of GaN film or by the combined effects of texture formation and thickness of G
Externí odkaz:
https://doaj.org/article/f282522a601c45c7883a3ad59d7482e5
Autor:
Hee Yun Kim, Jae Hyoung Ryu, Hyun Kyu Kim, Ho-Ki Kwon, Chang-Hee Hong, S. Chandramohan, Ji Hye Kang, Hyun Don Song, Hyun Kyong Cho
Publikováno v:
Journal of Crystal Growth. 314:66-70
The effect of selective area growth (SAG) on wafer bowing of GaN-based light-emitting diodes (LEDs) is investigated. The SAG of LED structures was carried out on a silicon dioxide (SiO 2 ) mask pattern with periodic 1000×1000 μm openings, along the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa5bb0e7bd6fea853ea867713e0b6b38
https://doi.org/10.1016/j.jcrysgro.2010.10.104
https://doi.org/10.1016/j.jcrysgro.2010.10.104
Autor:
Hyun-Don Song, Young Jin Kim
Publikováno v:
Journal of the European Ceramic Society. 27:3745-3748
ZnO:Er thin films were deposited on c -plane sapphire substrates by rf magnetron sputtering and annealed at 700 °C under air and H 2 atmospheres for the luminescent improvement. The effects of sputtering parameters and the annealing conditions on vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c95bebc7f2155938e0f5803bad611c39
https://doi.org/10.1016/j.jeurceramsoc.2007.02.028
https://doi.org/10.1016/j.jeurceramsoc.2007.02.028
Autor:
Hyun Soo Lim, Hyun Kyong Cho, Sung Hoon Jung, Hyun-Don Song, Ho-Ki Kwon, Ho-Sang Kwack, Myeong Seok Oh
Publikováno v:
AIP Advances, Vol 2, Iss 2, Pp 022127-022127-5 (2012)
The light output power (LOP) of vertical-type GaN-based light emitting diodes (LED) with surface roughness (texture) can be changed by texture size, density, and thickness of GaN film or by the combined effects of texture formation and thickness of G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffbac835a897cebb5a156b320c17aef8
https://doaj.org/article/f282522a601c45c7883a3ad59d7482e5
https://doaj.org/article/f282522a601c45c7883a3ad59d7482e5
Autor:
Chang-Hee Hong, Hee Yun Kim, Periyayya Uthirakumar, Nam Han, Jae Hyoung Ryu, Hyun Kyu Kim, Eun Kyung Suh, Ji Hye Kang, Hyun Kyong Cho, Hyun Don Song, Ho-Ki Kwon, S. Chandramohan, Hyung Gu Kim
Publikováno v:
Japanese Journal of Applied Physics. 49:072102
In this paper we report on the selective area growth (SAG) of vertical GaN-based light-emitting diodes (LEDs) by low-pressure metal-organic chemical vapor deposition (MOCVD). SAG, under optimized growth conditions, leads to ridge-shaped epilayers wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac0cbd9d0602f581041ad7784e8b3c6a
https://doi.org/10.1143/jjap.49.072102
https://doi.org/10.1143/jjap.49.072102
Autor:
Heon Lee, Ho Ki Kwon, Kyung Min Yoon, Jin Wook Lee, Eun Ju Hong, Kyeong Jae Byeon, Hyoungwon Park, Sun Kyung Kim, Hyun Kyong Cho, Hyun Don Song
Publikováno v:
Semiconductor Science and Technology. 25:035008
A vertical light-emitting diode (LED) with a chip size of 500 × 500 µm2 was fabricated by the laser lift-off (LLO) process of an InGaN-based blue LED wafer. After the LLO process, photonic crystal patterns by UV nano-imprint lithography were formed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b58505bd96e9860ad87cf93e55837dc4
https://doi.org/10.1088/0268-1242/25/3/035008
https://doi.org/10.1088/0268-1242/25/3/035008
Autor:
Sun Kyung Kim, Ho Seok Ee, Hyun Kyong Cho, Hong Gyu Park, Yong-Hee Lee, Hyun Don Song, Hyun Min Choi
Publikováno v:
Applied Physics Letters. 94:101102
We demonstrate light extraction from metal reflector-based AlGaInP photonic crystal (PhC) light-emitting diodes (LEDs). The photons reflected by a high-reflectivity, small-absorption, bottom Ag mirror steadily interact with the PhC, and thus enhanced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8df5bf72abd5bd63b525f96915b1cb71
https://doi.org/10.1063/1.3097017
https://doi.org/10.1063/1.3097017
Publikováno v:
Korean Journal of Materials Research. 18:1~4-1~4
The phase transformations and luminescent properties of Eu-doped Ca Sr Al O phosphors were investigated. Ca Sr Al O :Eu phosphors were synthesized by a solid-state reaction with a flux, H BO . A phase transformation from monoclinic CaAl O to monoclin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0985217b5edd11ec6a35aa412edb266d
https://doi.org/10.3740/mrsk.2008.18.1.001
https://doi.org/10.3740/mrsk.2008.18.1.001
Autor:
Hyun-Don Song, Young Jin Kim
Publikováno v:
Korean Journal of Materials Research. 16:401~407-401~407
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0841785b92099b2e730f3d4313ec6e3
https://doi.org/10.3740/mrsk.2006.16.7.401
https://doi.org/10.3740/mrsk.2006.16.7.401
Autor:
Hyun-Don Song, Young Jin Kim
Publikováno v:
Korean Journal of Materials Research. 16:58~62-58~62
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1e06e3c977897ec6430339757d06364
https://doi.org/10.3740/mrsk.2006.16.1.058
https://doi.org/10.3740/mrsk.2006.16.1.058