Seed-free growth of diamond patterns on femtosecond laser processed silicon substrates

Mengmeng Wang, Yunshen Zhou, Z. Q. Xie, Y. Gao, Lan Jiang, Yongfeng Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Due to its outstanding properties, diamond is considered as an ideal material for mechanical and electric applications at high temperatures, voltages, radiation, etc. It is known that femtosecond lasers exhibit extremely high precision and minimized thermal effect in material processing. In this study, a seed-free diamond pattern growth method was developed by patterning silicon substrates using a femtosecond laser before diamond deposition through laser-assisted combustion flame synthesis. The resolution of the diamond patterns reaches micro scales. Peak position, full width at half maximum (FWHM), and diamond quality parameter were calculated from Raman spectra. The mechanism of the seed-free diamond growth based on the femtosecond laser patterning was discussed. The influence of substrates surface roughness on the diamond nucleation and subsequent growth was studied, indicating that the nucleation density is proportional to the surface roughness.

Original languageEnglish (US)
Title of host publicationDiamond Electronics and Biotechnology
Subtitle of host publicationFundamentals to Applications VI
PublisherMaterials Research Society
Pages81-86
Number of pages6
ISBN (Print)9781632661043
DOIs
StatePublished - 2013
Event2012 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 25 2012Nov 30 2012

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1511
ISSN (Print)0272-9172

Conference

Conference2012 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/25/1211/30/12

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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