Title :
Photoluminescence study of polycrystalline and single crystal diamond
Author :
Mohapatra, Dipti Ranjan ; Rai, Padmnabh ; Misra, Abha ; Tyagi, Powan K. ; Misra, D.S.
Author_Institution :
Indian Inst. of Technol. Mumbai, Mumbai
Abstract :
Employing photoluminescence (PL) spectroscopy, we have carried out a detailed study of the different luminescence center in chemical-vapor- deposited (CVD) single-crystal and poly-crystalline diamond and natural diamonds. In addition to the zero phonon line, the fine structure of the PL emission spectra reveals vibronic bands corresponding to both phonon emission and absorption. At lower temperature, the emission intensity increases and peak position shifts towards higher energy band.
Keywords :
diamond; photoluminescence; plasma CVD; photoluminescence spectroscopy; plasma chemical vapor deposition; polycrystalline diamond; single crystal diamond; zero phonon line; Chemical vapor deposition; Hydrogen; Impurities; Optical films; Phonons; Photoluminescence; Plasma temperature; Silicon; Spectroscopy; Substrates;
Conference_Titel :
Physics of Semiconductor Devices, 2007. IWPSD 2007. International Workshop on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4244-1728-5
Electronic_ISBN :
978-1-4244-1728-5
DOI :
10.1109/IWPSD.2007.4472665
