Abstract
Indium phosphide thin films were grown onto glass substrates by RF magnetron sputtering. In this paper, we present a study on the role of argon pressure and rf power on magnetron sputtered InP films. These sputtering parameters are shown to affect the deposition rate, structure, morphology, electrical and optical properties of InP films. Single-phase, nearly stoichiometric and polycrystalline films exhibiting zinc blende structure with strong preferred orientation along (1 1 1) were observed at an argon pressure of 0.4 Pa, by keeping the substrate temperature (448 K) and RF power (150 W) constant. Hall measurements indicated n-type conductivity in InP films. The optical absorption studies indicated a direct band gap of 1.35 eV.
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