No abstract

No abstract

No abstract

The possibilities and advantages of tJV-laser ablation technique for deposition of doped PbTe thin films are discussed. To understand the effects of experimental parameters on layer formation the stages of laser sputtering of the target and film growth were investigated. Method of laser ionization RETOF mass spectrometrv was used to obtain the energy distribution and chemical nature of evaporated particles as a function of wavelength and laser radiation power. The influence of cxperimental parameters on the deposited film thickness stoichiometry and crystalline perfection was checked. The dependence of doped PbTe films photoelectrical properties on the experimental parameters.O-8194-1082-9/93/$6.OO Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/16/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx SPIE Vol. 1856 Laser Radiation Photophysics (1993) /47 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/16/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

C02-laser evaporation! KrF-laser ionization technique combined with reflectron time-of-flight mass-spectroinetry have been used for analysis of dri9king water polluted with phenol. The niininium phenol concentration level of 10 % was detected. A considerable temperature decreasing down to 150 K of the laser evaporated molecules from the frozen water surface has been obtained.