Surface-enhanced Raman spectroscopy for characterization of nanodiamond seeded substrates and ultrananocrystalline diamond at the early-stage of plasma CVD growth process

S. T. Chen, Y. C. Chu, C. Y. Liu, C. H. Huang, Yon-Hua Tzeng

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Nanodiamond seeds on substrates and ultrananocrystalline diamond (UNCD) at the early-stage of CVD have been characterized by surface-enhanced Raman spectroscopy (SERS). Anodic aluminum oxide (AAO) films encapsulated with two-dimensional arrays of silver nanoparticles are used as the substrates. UNCD is grown by 400 W, 2.45 GHz microwave plasma CVD using detonation nanodiamond as seeds in a gas mixture of 1% methane diluted by 99% argon at the substrate temperature of 400°C and gas pressure of 100 Torr for 15-45 min. Light illumination on Ag nanoparticles induces strong plasmonic coupled local electromagnetic fields for enhancing Raman scattering signals from nanodiamond seeds and UNCD films on AAO substrates at the early-stage of CVD. With electrodeposited silver nanoparticles photoluminescence signal is suppressed for revealing weak Raman signals. Fabrication of the Ag/AAO SERS substrates and the SERS spectra for nanodiamond seeded AAO substrates and ultra-thin UNCD at the early-stage of CVD growth are discussed.

Original languageEnglish
Pages (from-to)161-166
Number of pages6
JournalDiamond and Related Materials
Volume24
DOIs
Publication statusPublished - 2012 Apr 1

Fingerprint

Plasma CVD
Nanodiamonds
Diamond
Raman spectroscopy
Diamonds
Aluminum Oxide
Substrates
Aluminum
Seed
Chemical vapor deposition
Nanoparticles
Silver
Oxides
Argon
Diamond films
Methane
Detonation
Gas mixtures
Electromagnetic fields
Oxide films

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

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title = "Surface-enhanced Raman spectroscopy for characterization of nanodiamond seeded substrates and ultrananocrystalline diamond at the early-stage of plasma CVD growth process",
abstract = "Nanodiamond seeds on substrates and ultrananocrystalline diamond (UNCD) at the early-stage of CVD have been characterized by surface-enhanced Raman spectroscopy (SERS). Anodic aluminum oxide (AAO) films encapsulated with two-dimensional arrays of silver nanoparticles are used as the substrates. UNCD is grown by 400 W, 2.45 GHz microwave plasma CVD using detonation nanodiamond as seeds in a gas mixture of 1{\%} methane diluted by 99{\%} argon at the substrate temperature of 400°C and gas pressure of 100 Torr for 15-45 min. Light illumination on Ag nanoparticles induces strong plasmonic coupled local electromagnetic fields for enhancing Raman scattering signals from nanodiamond seeds and UNCD films on AAO substrates at the early-stage of CVD. With electrodeposited silver nanoparticles photoluminescence signal is suppressed for revealing weak Raman signals. Fabrication of the Ag/AAO SERS substrates and the SERS spectra for nanodiamond seeded AAO substrates and ultra-thin UNCD at the early-stage of CVD growth are discussed.",
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Surface-enhanced Raman spectroscopy for characterization of nanodiamond seeded substrates and ultrananocrystalline diamond at the early-stage of plasma CVD growth process. / Chen, S. T.; Chu, Y. C.; Liu, C. Y.; Huang, C. H.; Tzeng, Yon-Hua.

In: Diamond and Related Materials, Vol. 24, 01.04.2012, p. 161-166.

Research output: Contribution to journalArticle

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