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Mg:C60 co-evaporation method has been performed to obtain fulleride of MgxC60 thin films for carrier doping. Atomic concentration of the film has been examined by x-ray photoelectron spectroscopy to calibrate the composition ratio, and the results indicated that Mg concentration in the film was controlled well. Then, crystal structure of the Mg:C60 mixing film has been examined by using grazing incidence x-ray diffraction method. The diffraction patterns suggested that these films were microcrystalline MgxC60. Conductivity of the mixing films was increased as composition ratio of Mg increasing. It indicates that Mg atoms acted as carrier dopant. [ABSTRACT FROM AUTHOR]

In the present investigation, to make a phase matched crystal for any wavelength, we report the growth of thin film of 2-adamantylamino-5-nitropyridine (AANP) from molten state by a new and simple technique namely rectangular heater heated pedestal growth method. Using this method crystal thin film has been grown along a, b, c-directions and along the phase matching direction at 1.55 µm wavelength (60° from c-axis towards b-axis). Temperature profile of the growth cell has been studied to confirm its stability. X-ray diffraction studies confirmed the direction in which the film has been grown. Second harmonic light from 1.55 µm laser was clearly detected just in plane of the crystal grown towards the phase matched angle of the wavelength. [ABSTRACT FROM AUTHOR]