Optical absorption properties of electron beam evaporated a-Si films(a-Si_(1-x)Gd_x films)are studied for various composition x.It is shown from the experimental results that variation of chemical composition in this ...Optical absorption properties of electron beam evaporated a-Si films(a-Si_(1-x)Gd_x films)are studied for various composition x.It is shown from the experimental results that variation of chemical composition in this kind of materials will lead to a change in near infrared absorption.For 0.1 at%<x<1.0 at%,the changes of op- tical absorption in the films are more sensitive.The optical band gap narrows with increasing content x from 1.52 to 1.36 eV.Doping Gd element properly will be able to compensate the dangling bonds in a-Si films to improve thermal stability and mechanical properties of a-Si films.展开更多
文摘Optical absorption properties of electron beam evaporated a-Si films(a-Si_(1-x)Gd_x films)are studied for various composition x.It is shown from the experimental results that variation of chemical composition in this kind of materials will lead to a change in near infrared absorption.For 0.1 at%<x<1.0 at%,the changes of op- tical absorption in the films are more sensitive.The optical band gap narrows with increasing content x from 1.52 to 1.36 eV.Doping Gd element properly will be able to compensate the dangling bonds in a-Si films to improve thermal stability and mechanical properties of a-Si films.
