Title page for etd-0623115-110023


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URN etd-0623115-110023
Author Chia-hsing Cho
Author's Email Address No Public.
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Department Chemistry
Year 2014
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Hydrothermal synthesis of copper oxide nanostructures and surface-enhanced raman spectroscopy applications
Date of Defense 2015-06-26
Page Count 80
Keyword
  • SERS
  • Hydrothermal method
  • Copper oxide
  • Abstract In recent years, many researchers have paid attention to metal oxide nanoparticles and widely utilize in various fields, including Surface-Enhanced Raman Scattering (SERS), catalysis, batteries, solar energy conversion and bio-sensors, etc. It is reported that nanoscale copper oxide (CuO) with different shapes and size, such as nanorods, nanowires and nanotudes have been synthesized using numerous methodologies. CuO is a p-type semiconductor with a narrow band gap of 1.2eV. In this experiment, we synthesized three different structures (Echinus、Flower & Rod). X-ray diffraction (XRD) was used to characterize the structure and used scanning electron microscope (SEM) to observe CuO morphology. Then, high-resolution transmission electron microscopy (HRTEM) was surveyed CuO lattice space. We synthesized CuO-Ag particles as SERS substrate by fixing the concentration of silver nitrate and adjusting the reaction time. 4-ATP was selected as the probe molecule to investigate the SERS properties of the obtained substrates. Campared with pure CuO as SERS substrates, CuO-Ag particles can effectively enhance the ATP signal, and Echinus structure’s detection limit of up to 10-7 M.
    Advisory Committee
  • Shangwu (Sam) Ding - chair
  • Huey-Shan Hung - co-chair
  • Shu-chen Hsieh - advisor
  • Files
  • etd-0623115-110023.pdf
  • Indicate in-campus at 99 year and off-campus access at 99 year.
    Date of Submission 2015-07-23

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