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498 results on '"Huang, Yi-Fan"'

172. Synthesis and Characterization of Gold Nanoparticles Coated with Ultrathin and Chemically Inert Dielectric Shells for SHINERS Applications

Author

Li, Jian-Feng, primary, Li, Song-Bo, additional, Anema, Jason R., additional, Yang, Zhi-Lin, additional, Huang, Yi-Fan, additional, Ding, Yong, additional, Wu, Yuan-Fei, additional, Zhou, Xiao-Shun, additional, Wu, De-Yin, additional, Ren, Bin, additional, Wang, Zhong-Lin, additional, and Tian, Zhong-Qun, additional

Published
2011
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177. Magnetotelluric joint inversion for anisotropic conductivities in layered media

Author

Fang Hui, Huang Yi-Fan, HU Xiang-Yun, and Huo Guang-Pu

Subjects
Magnetotellurics, General Physics and Astronomy, Inversion (meteorology), Geophysics, Anisotropy, Geology
Abstract

The electrical anisotropy in the crust and the upper mantle is the main link among geoelectrical model, underlying structure, and tectonic model. In recent years, great attention was paid to this phenomenon, which promotes the new research towards the structure model of electrical anisotropy and inversion theory. According to the Marquardt's inversion theory, in the paper we first improve the weighting factor and apply it to the apparent resistivity and impedance phase joint inversion. Then, the detailed example analysis of them proves the corrctness of the mentioned theory. Additionally, the processing and the interpretation of the measured magnetotelluric data in northwest of china not only indicate the practicability of the theory, but also provide a new method for the future research of deep electrical structures.

Published
2012
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182. Shell-isolated nanoparticle-enhanced Raman spectroscopy

Author

Li, Jian Feng, primary, Huang, Yi Fan, additional, Ding, Yong, additional, Yang, Zhi Lin, additional, Li, Song Bo, additional, Zhou, Xiao Shun, additional, Fan, Feng Ru, additional, Zhang, Wei, additional, Zhou, Zhi You, additional, Wu, De Yin, additional, Ren, Bin, additional, Wang, Zhong Lin, additional, and Tian, Zhong Qun, additional

Published
2010
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194. Improved broadband and quasi-omnidirectional anti-reflection properties with biomimetic silicon nanostructures

Author

Huang, Yi-Fan, primary, Chattopadhyay, Surojit, additional, Jen, Yi-Jun, additional, Peng, Cheng-Yu, additional, Liu, Tze-An, additional, Hsu, Yu-Kuei, additional, Pan, Ci-Ling, additional, Lo, Hung-Chun, additional, Hsu, Chih-Hsun, additional, Chang, Yuan-Huei, additional, Lee, Chih-Shan, additional, Chen, Kuei-Hsien, additional, and Chen, Li-Chyong, additional

Published
2007
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196. Surface plasmon-enhanced photochemical reactions on noble metal nanostructures.

Author

Wu, De-Yin, Zhang, Meng, Zhao, Liu-Bin, Huang, Yi-Fan, Ren, Bin, and Tian, Zhong-Qun

Abstract

Nanoscale noble metals can exhibit excellent photochemical and photophysical properties, due to surface plasmon resonance (SPR) from specifically collective electronic excitations on these metal surfaces. The SPR effect triggers many new surface processes, including radiation and radiationless relaxations. As for the radiation process, the SPR effect causes the significant focus of light and enormous enhancement of the local surface optical electric field, as observed in surface-enhanced Raman spectroscopy (SERS) with very high detection sensitivity (to the single-molecule level). SERS is used to identify surface species and characterize molecular structures and chemical reactions. For the radiationless process, the SPR effect can generate hot carriers, such as hot electrons and hot holes, which can induce and enhance surface chemical reactions. Here, we review our recent work and related literature on surface catalytic-coupling reactions of aromatic amines and aromatic nitro compounds on nanostructured noble metal surfaces. Such reactions are a type of novel surface plasmon-enhanced chemical reaction. They could be simultaneously characterized by SERS when the SERS signals are assigned. By combining the density functional theory (DFT) calculations and SERS experimental spectra, our results indicate the possible pathways of the surface plasmon-enhanced photochemical reactions on nanostructures of noble metals. To construct a stable and sustainable system in the conversion process of the light energy to the chemical energy on nanoscale metal surfaces, it is necessary to simultaneously consider the hot electrons and the hot holes as a whole chemical reaction system. [ABSTRACT FROM AUTHOR]

Published
2015
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