Optical properties of trimethylboron and nitrogen codoped amorphous carbon films

Y. Hayashi, S. Ishikawa, T. Soga, T. Jimbo, M. Adachi, M. Umeno

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We report on the efficient photoluminescence (PL) and optical properties of hydrogenated amorphous carbon thin films codoped with nitrogen and trimethylboron (TMB) grown by rf plasma-enhanced chemical vapor deposition at room temperature. The study clearly shows the observation of discrete PL emission peaks. The PL intensity of the film deposited with 20 sccm TMB is more than 103 times than that of the film deposited without TMB. The change of optical bandgap and PL emission energy with TMB flow rate are discussed based on sp3 and sp2 C networks. Angular dependence of the PL spectra revealed that the origin of multiple sharp peaks is due to Fabry-Perot cavity interference effect.

Original languageEnglish
Pages (from-to)1096-1100
Number of pages5
JournalInternational Journal of Modern Physics B
Issue number6-7
Publication statusPublished - Mar 20 2002
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics


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