Publications
Byeoungju Lee, Kwangnam Yu, Jiwon Jeon and E.J. Choi
Machine learning analysis of broadband optical reflectivity of semiconductor thin film, JKPS, 2022 Article
MinJay Kim, KyeongJun Lee, HyunDon Kim, HyukJin Kim, ByoungKi Choi, InHak Lee, YeongGwang Khim, JinEun Heo, SeoHyoung Chang, E.J Choi and YoungJun Chang
Epitaxial growth and optical band gap variation of ultrathin ZnTe films, Materials Letters, 131725, 2022 Article
Ji soo Lim, Jounghee Lee, Byeoung Ju Lee, Yong-Jin Kim, Heung-Sik Park, Jeonghun Suh, Ho-Hyun Nahm, Sang Woo Kim, Byeong Gwan Cho, Tae Yeong Koo, E.J Choi,Yong-Hyun Kim, Chan Ho Yang
Harnessing then topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications, Science advances, 2020, 6.41: eabb8553. Article
Jiho Kim , Jiwon Jeon , Byoungju Lee, Kwangnam Yu, Marcelo A. Kuroda and E. J. Choi
'Infrared Spectroscopic Probe of Charge Distribution in Gated Multilayer Graphene: Evidence of Nonlinear Screening', Phys.Rev.Applied 13, 014066, 2020 Article
Ji-Hwan Kwon , Seunghoon Jang , Hyukjin Kim , Beomsoo Joo , Kwangnam Yu , Eunjip Choi , Moonsup Han , Jong Hyuk Park and Young Jun Chang
'Microscopic and chemical analysis of room temperature UV laser annealilng of solution-based zinc-tin-oxide thin films', Journal of Analytical Science and technology 11, 2020 Article
Kwangnam Yu, Nguyen Van Luan, Taesoo Kim, Jiwon Jeon, Jiho Kim, Pilkyung Moon, Young Hee Lee, and E. J. Choi
'Gate tunable optical absorption and band structure of twisted bilayer graphene', Phys. Rev. B 99, 241405(R), 2019 Article
Kwangnam Yu, Jiwon Jeon, Jiho Kim, Chang Won Oh, Yongseok Yoon, BeomJoon Kim, Jeong Ho Cho, and E. J. Choi
'Infrared study of carrier scattering mechanism in ion-gated graphene', Appl. Phys. Lett. 114, 083503, 2019 Article
Jiwon Jeon, Kwangnam Yu, Jiho Kim, Jisoo Moon, Seongshik Oh, and E. J. Choi
'Observation of optical absorption correlated with surface state of topological insulator',Phys.Rev.B.100,195110, 2019 Article
Dong Hyun Jang, Woong-Jhae Lee, Egon Sohn, Hyung Joon Kim, Dongmin Seo, Ju-Young Park, E. J. Choi, and Kee Hoon Kim
'Single crystal growth and optical properties of a transparent perovskite oxide LaInO3', Journal of Applied Physics 121, 125109, 2017 Article
A-Rang Jang, Seokmo Hong, Chohee Hyun, Seong In Yoon, Gwangwoo Kim,Hu Young Jeong, Tae Joo Shin, Sung O. Park, Kester Wong, Sang Kyu Kwak, Noejung Park, Kwangnam Yu,
Eunjip Choi, Artem Mishchenko, Freddie Withers, Kostya S. Novoselov, Hyunseob Lim, and Hyeon Suk Shin
'Wafer-Scale and Wrinkle-Free Epitaxial Growth of Single-Orientated Multilayer Hexagonal Boron Nitride on Sapphire', Nano Lett. 16, 2016 Article
Kwangnam Yu, Jiho Kim, Chul Lee, A-Rang Jang, Hyeon Suk Shin, Keun Soo Kim, Young-Jun Yu, and E. J. Choi
'Infrared study of large scale h-BN film and graphene/h-BN heterostructure', Appl. Phys. Lett. 108, 241910, 2016 Article
Kwangnam Yu, Jiho Kim, Joo Youn Kim, Wonki Lee, Jun Yeon Hwang, E. H. Hwang, and E. J. Choi
'Infrared spectroscopic study of carrier scattering in gated CVD graphene', Phys. Rev. B 94, 235404, 2016 Article
Chul Lee , N. Leconte , Jiho Kim , Doohee Cho , In-Whan Lyo and E.J. Choi
'Optical spectroscopy study on the effect of hydrogen adsorption on graphene', Carbon 103, 2016 Article
S. Y. Hamh, S.-H. Park, S.-K. Jerng, J. H. Jeon, S. H. Chun, J. H. Jeon, S. J. Kahng, K. Yu, E. J. Choi, S. Kim, S.-H. Choi, N. Bansal, S. Oh, Joonbum Park, Byung-Woo Kho, Jun Sung Kim, and J. S. Lee
'Surface and interface states of Bi2Se3 thin films investigated by optical second harmonic generation and terahertz emission', Appl. Phys. Lett. 108, 051609, 2016 Article
Chul Lee, Jiho Kim, SangJin Kim, Young Jun Chang, Keun Soo Kim, ByungHee Hong and E. J. Choi
'Strong hole-doping and robust resistance-decrease in protonirradiated graphene ', Scientific reports 6, 21311, 2016 Article
Jiho Kim , Seung Kwan Baek , Keun Soo Kim , Young Jun Chang and E.J. Choi
'Long-term stability study of graphene-passivated black phosphorus under air exposure',Current Applied Physics 16, 2015 Article
Nak Woo Kim, Joo Youn Kim, Chul Lee, Sang Jin Kim, Byung Hee Hong, and E. J. Choi
'Infrared spectroscopy of large scale single layer graphene on self assembled organic monolayer ', Appl. Phys. Lett. 104, 041904, 2014 Article
Dongmin Seo, Kwangnam Yu, Young Jun Chang, Egon Sohn, Kee Hoon Kim, and E. J. Choi
'Infrared optical spectroscopy of transparent conducting perovskite (La,Ba)SnO3 thin films', Appl. Phys. Lett. 104, 022102, 2014 Article
Dongmin Seo, Kwangnam Yu and E. J. Choi
'Infrared Conductivity of PED-grown (La,Ba)SnO3 Thin Films', Journal of Korea Physics Society 64, 764767, 2014 Article