Optical properties of boron-doped diamond films

Guangtian Zou; San Yu; Zengsun Jin; Xianyi Lu; Zuochen Yang

doi:10.1117/12.130779

20 November 1992 Optical properties of boron-doped diamond films

Guangtian Zou, San Yu, Zengsun Jin, Xianyi Lu, Zuochen Yang

Author Affiliations +

Proceedings Volume 1759, Diamond Optics V; (1992) https://doi.org/10.1117/12.130779
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Boron doped and undoped diamond films were prepared by a hot filament method of chemical vapor deposition (CVD). Up to 10²⁰ cm^-3 boron concentration was obtained in doped specimens. Infrared (IR) absorption and luminescent emission of diamond films were measured and discussed. Absorption peaks of 1971.3 cm^-1, 2020.0 cm^-1, and 2161.4 cm^-1 were observed in undoped diamond films, which are assigned to two-phonon lattice vibration absorption of diamond. Two absorption peaks at 2850 cm^-1 and 2910 cm^-1 were usually observed in CVD diamond films, which is very similar to that of C-H vibration absorptions in CH₂-radicals. In the range of 300 nm - 800 nm, four typical luminescent emissions were observed, which are 2.76 eV broad emission, 2.34 eV broad emission, 2.16 eV sharp emission with a low- energy shoulder and a sharp emission at 1.675 eV. The 2.34 eV emission is originated from the donor-acceptor (D-A) pairs, the others are originated from defect related centers.

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Guangtian Zou, San Yu, Zengsun Jin, Xianyi Lu, and Zuochen Yang "Optical properties of boron-doped diamond films", Proc. SPIE 1759, Diamond Optics V, (20 November 1992); https://doi.org/10.1117/12.130779

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