Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Wei Hsuan Hung"'
Autor:
Chia Wei Chen, Ling Lee, Arumugam Manikandan, Guozhen Shen, Shen-Ming Chen, Wei Hsuan Hung, Rajesh Madhu, Zhiming Wang, Henry Medina, Vediyappan Veeramani, Yu-Lun Chueh
Publikováno v:
The Journal of Physical Chemistry C. 120:25752-25759
Since prevention methods of type-II diabetes and knowledge of prediabetes are lacking, the development of sensitive and accurate glucose sensors with an ultralow detection limit is imperative. In this work, the enzyme-free glucose sensor based on thr
Autor:
Chia-Chi Chang, Wei Hsuan Hung, Chun-Chung Chen, Chongwu Zhou, I-Kai Hsu, Jesse Theiss, Haitian Chen, Stephen B. Cronin
Publikováno v:
Nanotechnology. 22(30)
We study the effect of polarized laser annealing on the crystalline structure of individual crystalline?amorphous core?shell silicon nanowires (NWs) using Raman spectroscopy. The crystalline fraction of the annealed spot increases dramatically from 0
Publikováno v:
ACS nano. 4(9)
We apply immense strain to ultralong, suspended, single-walled carbon nanotubes while monitoring their Raman spectra. We can achieve strains up to 13.7 ± 0.3% without slippage, breakage, or defect formation based on the observation of reversible cha
Publikováno v:
Nanotechnology. 21(10)
We present an optical method for patterning SERS (surface-enhanced Raman spectroscopy)--enhancing aggregates of gold nanoparticles, using a focused laser beam to optically trap the nanoparticles in suspension. At high laser powers, heat generated fro
Publikováno v:
Nano letters. 8(10)
We exploit the strong plasmon resonance of gold nanoparticles in the catalytic decomposition of CO to grow various forms of carbonaceous materials. Irradiating gold nanoparticles in a CO environment at their plasmon resonant frequency generates high
Autor:
Tzu Ming Chien, Wei Hsuan Hung
Publikováno v:
Materials Research Express. 1:015009
Plasmon-enhanced heating has been directly studied through the observation of the change of Raman spectra of Au-Fe2O3 composite catalyst and Fe2O3 alone under 532 nm laser excitation. Strong plasmonic heating is observed in the Au-Fe2O3 nanoparticle
Publikováno v:
Journal of Applied Physics. 113:034302
Thin Au and Ag evaporated films (∼5 nm) are known to form island-like growth, which exhibit a strong plasmonic response under visible illumination. In this work, evaporated thin films are imaged with high resolution transmission electron microscopy
Autor:
Stephen B. Cronin, Chia-Chi Chang, Mehmet Aykol, Wei Hsuan Hung, Michael T. Pettes, Li Shi, I. Kai Hsu, Jesse Theiss
Publikováno v:
Journal of Applied Physics. 110:044328
A two-laser technique is used to investigate heat spreading along individual single walled carbon nanotube (SWCNT) bundles in vacuum and air environments. A 532 nm laser focused on the center of a suspended SWCNT bundle is used as a local heat source
Publikováno v:
Applied Physics Letters. 91:093121
The authors report a method for creating three-dimensional carbon nanotube structures, whereby a focused laser beam is used to selectively burn local regions of a dense forest of multiwalled carbon nanotubes. Raman spectroscopy and scanning electron