Center for Integrated Nanostructure Physics

[New journal!]

Kwangnam Yu, NGUYEN Van Luan, Tae Soo Kim, Jiwon Jeon, Jiho Kim, Pilkyung Moon, Young Hee Lee, and E. J. Choi [Physical Review B 99, Jun. 21 , 241405(R)-(2019) ]

Gate tunable optical absorption and band structure of twisted bilayer graphene We report the infrared transmission measurement on electrically gated twisted bilayer graphene. The optical absorption spectrum clearly manifests dramatic changes such as the splitting of the interlinear-band absorption step, the shift of the inter-van Hove singularity transition peak, and the emerg...

[New journal!]

Hyojung Kim, Hye Ryung Byun & Mun Seok Jeong [Scientific Reports 9(2022), Feb. 14 (2019) ]

Synthesis and Characterization of Multiple-Cation Rb(MAFA)PbI3 Perovskite Single Crystals We synthesized multiple-cation Rb(MAFA)PbI3 perovskite single crystals for the first time. The effect of Rb+ substitution was systemically investigated, and the addition of 1.5 M 5% RbI was the optimum condition to obtain high-quality Rb(MAFA)PbI3 single crystals. Lattice shrinkage occurred in the...