The photoabsorption spectra,of nanoycrystalline silicon(nc-Si:H)films were measured by means of constant photoconductivity method.We investigated the changes of absorption spectra,with the increasing of crystallinity ...The photoabsorption spectra,of nanoycrystalline silicon(nc-Si:H)films were measured by means of constant photoconductivity method.We investigated the changes of absorption spectra,with the increasing of crystallinity as the deposited films are amorphous,micro crystallin e and nan o-crystallin e.We found that in nc-Si:H the transition processes in the interfacial region between the grains predominate the whole range of the absorption spectra.We related the phenomenon to the structural changes in the material.展开更多
基金Supported in part by the National Natural Science Foundation of China.
文摘The photoabsorption spectra,of nanoycrystalline silicon(nc-Si:H)films were measured by means of constant photoconductivity method.We investigated the changes of absorption spectra,with the increasing of crystallinity as the deposited films are amorphous,micro crystallin e and nan o-crystallin e.We found that in nc-Si:H the transition processes in the interfacial region between the grains predominate the whole range of the absorption spectra.We related the phenomenon to the structural changes in the material.
