Field decrystallization and structural modifications of highly doped silicon in a 2.45-GHz microwave single-mode cavity

Ramesh Peelamedu, Rustum Roy, Dinesh Agrawal, William Drawl

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Highly doped n-type silicon powder responds aggressively to a 2.45-GHz microwave E-field, whereas it remains unperturbed in the H-field. In the E-field, after about 30 s of treatment, the silicon powder attained submelting temperatures and thus coagulated to a bulk solid piece. X-ray diffraction analysis of the surface and the cross section of this solid material failed to show any detectable peaks, ascertaining the fact that the material had decrystallized. The Raman spectra of the material had broad and shallow peaks quite different from the thin, sharp lines exhibited by Si wafer. It appears that the E-field treatment has considerably distorted the lattice structure creating lattice strains throughout the sample. These lattice strains were relieved by grinding (recrystallized).

Original languageEnglish (US)
Pages (from-to)1599-1602
Number of pages4
JournalJournal of Materials Research
Volume19
Issue number6
DOIs
StatePublished - Jun 1 2004

All Science Journal Classification (ASJC) codes

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

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