Chen Shuguang, Li Xiqiang. Optical Properties of Sputtered GaAs Films and Investigation of Effective-Medium Models[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1986,25(3):92-98.
Chen Shuguang, Li Xiqiang. Optical Properties of Sputtered GaAs Films and Investigation of Effective-Medium Models[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1986,25(3):92-98.DOI:
Some nearly stoichiometric GaAs films have been prepared by rf sputteringand the relations between structure and composition of film and technologicalconditions have been investigated.The optical properties of samples have beenmeasured by spectroscopic ellipsometry.The results show that the absorptioncoefficient of GaAs film is much larger than that of the crystalline
but thedielectric constant and the optical gap are lower.We have used an effectivemedium approximation to calculate the volume fraction for several phases offilm