The Effects Of Mg Doping On Photoconductivity For Gan Films Deposited By Mocvd

This paper presents the UV photoconductivity properties of GaN films doped with different Mg concentrations deposited by MOCVD. It was observed that for the undoped and weakly doped GaN films the UV photocurrent response was relatively large and the relax time was relatively short. With an increase in doped Mg content, the samples became P type, the photocurrent response become weak and the relax time became long.