摘要： 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 400W, 2.45GHz 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 100Torr for 15–45min. 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. ► AAO-Ag surface-enhanced Raman spectroscopy (SERS) substrate is applied to UNCD growth. ► SERS of diamond seeding with nanoparticles is measured. ► SERS characteristics of the early-stage of UNCD growth are demonstrated. 出版者： Amsterdam: Elsevier B.V 出版日期： 2012-04-01 出處： Diamond and related materials, 2012-04, Vol.24, p.161-166 版權： 2012 Elsevier B.V. 版權： 2015 INIST-CNRS 識別號： ISSN: 0925-9635 識別號： EISSN: 1879-0062 識別號： DOI: 10.1016/j.diamond.2012.01.005
