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24 June 1993 Continuous-wave Nd:YAG laser deposition of CdS thin films with cubic phase
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Proceedings Volume 1856, Laser Radiation Photophysics; (1993)
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
A continuous wave (CW) Nd:YAG laser operating at the fundamental mode of 1.064 micrometers was used to deposit CdS thin films with cubic phase on glass, quartz, NaCl (100), and carbon coated formvar substrates. At substrate temperatures near 200 degree(s)C, the films consisted of a combination of the zincblende (cubic) and wurtzite (hexagonal) phases of CdS. X-ray diffraction patterns of films deposited on each substrate indicate a predominantly cubic structure. Transmission electron microscope further confirmed the presence of the cubic phase. The films had a stoichiometric ratio of 1:1 for Cd:S. The surface of the films were optically smooth. Optical transmission measurements reveal a room temperature absorption edge of 515 nm for the films deposited on glass and quartz substrates. Raman spectra show longitudinal optical (LO) modes at 300 cm-1 (1LO) and 605 cm-1 (2LO), similar to that of the hexagonal film. The transition from predominantly cubic to hexagonal films was estimated to occur near 275 degree(s)C for glass substrates, and 350 degree(s)C for quartz substrates.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xing Wu Wang and D. J. Finnigan "Continuous-wave Nd:YAG laser deposition of CdS thin films with cubic phase", Proc. SPIE 1856, Laser Radiation Photophysics, (24 June 1993);

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