Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Hyung-Keun Yoo"'
Autor:
Hyung Keun Yoo, Soo Bin Cho, Sae June Park, Yeong Hwan Ahn, Chul Kang, In-Wook Hwang, Joong Wook Lee
Publikováno v:
Applied Sciences, Vol 11, Iss 6, p 2765 (2021)
Optically controlled spectral-band selective terahertz (THz) modulators based on metal-organic hybrid metamaterials were investigated. An artificially structured material, which consists of two single split-ring resonators put together on the split g
Externí odkaz:
https://doaj.org/article/82c46908f988460b91a750ff03f05e17
Autor:
Hyung Keun Yoo, Hanju Lee, Kiejin Lee, Chul Kang, Chul-Sik Kee, In-Wook Hwang, Joong Wook Lee
Publikováno v:
AIP Advances, Vol 7, Iss 10, Pp 105008-105008-6 (2017)
We demonstrate the conditions for optimal modulation efficiency of active terahertz modulators based on phenyl-C61-butyric acid methyl ester (PCBM)-silicon hybrid structures. Highly efficient active control of the terahertz wave modulation was realiz
Externí odkaz:
https://doaj.org/article/c25b0373e4b5433a8bb34a33f222d796
Autor:
Byungseong Ahn, Kwangseok Lee, Jaehun Yang, Jiseong Doh, Jaehoon Jeong, Taeshin Kwag, Minseok Kim, Yeonjeong Kim, Jongchul Kim, Hyung Keun Yoo, Dae Sin Kim
Publikováno v:
Solid-State Electronics. 201:108578
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b494f7808ccb95699ea3a4c3a01f7747
https://doi.org/10.1016/j.sse.2022.108578
https://doi.org/10.1016/j.sse.2022.108578
Publikováno v:
AIP Advances, Vol 6, Iss 11, Pp 115310-115310-6 (2016)
We demonstrate the characteristics of the optical control of terahertz (THz) wave transmission in photoexcited bilayers of pentacene/Si and 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene)/Si. The modulation efficiency is influenced sign
Externí odkaz:
https://doaj.org/article/1adff8085411469aaa96b6d0f9e2ea0b
Autor:
Hyunsuk Choi, Kwangseok Lee, Jiseong Doh, Jaehoon Jeong, Taeshin Kwag, Minseok Kim, Yeonjeong Kim, Jongchul Kim, Hyung Keun Yoo, Dae Sin Kim
Publikováno v:
Solid-State Electronics. 200:108574
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fca30b29a4455605fb2ba86274296250
https://doi.org/10.1016/j.sse.2022.108574
https://doi.org/10.1016/j.sse.2022.108574
Autor:
Sae June Park, Hyung Keun Yoo, Yeong Hwan Ahn, Soo Bin Cho, Joong Wook Lee, In-Wook Hwang, Chul Kang
Publikováno v:
Applied Sciences, Vol 11, Iss 2765, p 2765 (2021)
Applied Sciences
Volume 11
Issue 6
Applied Sciences
Volume 11
Issue 6
Optically controlled spectral-band selective terahertz (THz) modulators based on metal-organic hybrid metamaterials were investigated. An artificially structured material, which consists of two single split-ring resonators put together on the split g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a2c1b17bb69f43781cea0c3d494778f
https://doi.org/10.3390/app11062765
https://doi.org/10.3390/app11062765
Autor:
Hyung Keun Yoo, Chul Kang, Ik-Bu Sohn, Joong Wook Lee, Chul-Sik Kee, In-Wook Hwang, Jung-Min Park
Publikováno v:
Optics Communications. 359:349-352
We demonstrate the characteristics of terahertz (THz) wave modulation by 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene) thin films deposited on silicon substrates patterned with one-dimensional periodic multi-channels. The polarization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd74d1dba63f5f522630963a4a085c49
https://doi.org/10.1016/j.optcom.2015.10.008
https://doi.org/10.1016/j.optcom.2015.10.008
Publikováno v:
The Journal of Physical Chemistry C. 119:12896-12903
Improved performance of polymer-based solar cells based on PTB7:PC71BM composites has been obtained by using additive-soaking treatments on pristine bulk-heterojunction (BHJ) films. From analyses of the nanoscale morphologies, solar-cell-device perfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ca2881a46500709e6ad15a53695de19
https://doi.org/10.1021/acs.jpcc.5b03751
https://doi.org/10.1021/acs.jpcc.5b03751
Autor:
Kiejin Lee, Taedong Kim, Barry Friedman, Sula Choi, Youngwoon Yoon, Hanju Lee, Kyoungchul Kim, Hyung Keun Yoo
Publikováno v:
Solid-State Electronics. 79:45-49
We studied the post annealing effect on the interface morphology and performance of organic light-emitting diodes (OLEDs) at 80 °C substrate temperature. We observed the crystallinity and roughness changes of each layer in an OLED with ITO/CuPc/NPB/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e58f423ddf7272bdd3ce51a58d29ea9e
https://doi.org/10.1016/j.sse.2012.07.016
https://doi.org/10.1016/j.sse.2012.07.016
Autor:
Arsen Babajanyan, Hyung-Keun Yoo, Gérard Berthiau, Songhui Kim, Kiejin Lee, Tigran Abrahamyan, Deokjoon Cha, Jung-Ha Lee, Youngwoon Yoon, Hanju Lee, Kwang-Hwan Jung, Ah Reum Choi, Barry Friedman
Publikováno v:
Journal of Biophotonics. 6:163-170
We study the opto-electrical properties of Natronomonas pharaonis sensory rhodopsin II (NpSRII) by using a near-field microwave microprobe (NFMM) under external light illumination. To investigate the possibility of application of NFMM to biological m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c36affe9f97af40a0c234c7f62d7f83a
https://doi.org/10.1002/jbio.201100143
https://doi.org/10.1002/jbio.201100143