Jinkyoung Yoo

TL;DR: It is shown that in situ transmission electron microscopy can be used to study the dynamic lithiation process of single-crystal silicon with atomic resolution and observe a sharp interface between the crystalline silicon and an amorphous Li(x)Si alloy.

TL;DR: Efficient and stable LEDs processed from solution with tunable color enabled by using phase-pure 2D Ruddlesden-Popper (RP) halide perovskites with a formula (CH3 (CH2 )3 NH3 )2 (CH4 NH3)n-1 Pbn I3n+1 are reported.

TL;DR: A solution-based lithography-assisted epitaxial-growth-and-transfer method is used to fabricate single-crystal hybrid perovskites on any surface, with precise control of the thickness, area and chemical composition gradient.

TL;DR: Low-temperature photoluminescence spectra of ZnO samples showed two luminescence peaks in the UV and green emission region, respectively, and as the concentration of sulfur in the ZnNO nanostructures increased, the intensity of the UV emission peak decreased dramatically, and it showed a little blue-shift while theintensity of the green emission increased greatly.

TL;DR: Large-scale synthesis of single-crystal CdS microbelts was achieved by a modified thermal evaporation method, in which an adiabatic layer was used to provide abrupt temperature decrease and high gas concentration for the microbelt growth.