Changhyun Jin
Yonsei University · Engineering
Changhyun Jin 교수의 연구실은 나노구조 산화물 허브-쉘 구조를 설계하고 제어함으로써 고성능 광학 및 전자 소재를 개발하는 데 주력하고 있습니다. ZnO와 MgO 기반 나노나선에 SnO2, TiO2 등의 반도체 코팅을 적용하여 광발광 성능을 극대화하는 연구를 진행하고 있으며, 특히 근간대 발광 강도 향상에 초점을 맞추고 있습니다. 이는 나노소재 기반의 고감도 센서, 발광 소자 및 에너지 변환 장치 응용에 기여할 잠재력을 지닙니다.
Figures are computed from collected data and may differ slightly.
ZnO-core/SnO2-shell nanorods were fabricated by a two-step process: thermal evaporation of ZnO powders and atomic layer deposition of SnO2. Transmission electron microscopy and X-ray diffraction revealed the cores and shells of the as-prepared core–shell nanorods to be single crystal wurtzite-type ZnO and polycrystalline rutile-type tetragonal SnO2, respectively. Photoluminescence (PL) measurements showed that the intensity of near-band edge (NBE) emission of ZnO nanorods was enhanced significan
Well-faceted MgO nanorods synthesized by the thermal evaporation of Mg3N2are sheathed with TiO2, resulting in ultraintense blue-green luminescence. Intense emissions with a variety of wavelengths, ranging from the ultraviolet to the infrared, may be possible by sheathing MgO nanorods with a semiconducting material of optimal thickness.
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