H
Hsin Ming Cheng
Researcher at National Chiao Tung University
Publications - 16
Citations - 1075
Hsin Ming Cheng is an academic researcher from National Chiao Tung University. The author has contributed to research in topics: Photoluminescence & Chemistry. The author has an hindex of 9, co-authored 9 publications receiving 1027 citations. Previous affiliations of Hsin Ming Cheng include Industrial Technology Research Institute.
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Band gap variation of size-controlled ZnO quantum dots synthesized by sol-gel method
TL;DR: In this article, size-dependent blue shifts of photoluminescence and absorption spectra revealed the quantum confinement effect and the band gap enlargement was in agreement with the theoretical calculation based on the effective mass model.
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Size dependence of photoluminescence and resonant Raman scattering from ZnO quantum dots
TL;DR: The size dependence of electron-phonon coupling is principally a result of the Frohlich interaction as discussed by the authors, and the coupling strength between electron and longitudinal optical phonon, deduced from the ratio of the second-to-first-order Raman scattering intensity, diminishes with reducing the ZnO QD diameter.
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Band gap engineering and spatial confinement of optical phonon in ZnO quantum dots
TL;DR: In this article, band gap engineering and spatial confinement of optical phonons were observed depending upon the size of ZnO quantum dots at room temperature, and the size-dependent blueshifts of photoluminescence and absorption spectra reveal the quantum confinement effect.
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Band gap engineering and stimulated emission of ZnMgO nanowires
TL;DR: In this article, a simple method for fabricating heterostructured ZnMgO nanowires by annealing the preformed ZnO∕MgOs core-shell structure is presented.
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Efficient UV photoluminescence from monodispersed secondary ZnO colloidal spheres synthesized by sol-gel method
Hsin Ming Cheng,Hsin Ming Cheng,Hsu Cheng Hsu,Shiow Lian Chen,Wen Ti Wu,Chih Chun Kao,Li Jiaun Lin,Wen-Feng Hsieh +7 more
TL;DR: In this article, ZnO colloidal spheres were synthesized by sol-gel method with a narrow size distribution, and the optimized condition of the powders with an average diameter of 185nm was obtained for structure analysis and study of optical properties.