Author/Authors :
Lee، نويسنده , , Jing-Jy and Chang، نويسنده , , J.H. and Yang، نويسنده , , M. and Ahn، نويسنده , , H.S. and Yi، نويسنده , , S.N. and Goto، نويسنده , , K. and Godo، نويسنده , , K. and Makino، نويسنده , , H. and Cho، نويسنده , , M.W. and Yao، نويسنده , , T. and Song، نويسنده , , J.S.، نويسنده ,
Abstract :
Luminescence properties of CdTe/ZnSe fractional monolayer grown by atomic layer epitaxy have been investigated. To investigate the origin of the highly efficient luminescence, various optical spectroscopic methods such as, photoluminescence (PL), temporal/spatial resolved PL, temperature dependence PL, and excitation power dependence PL have been used. It is found that structural inhomogeneities affect dominant influence on the line width and line shape of luminescence. The luminescence intensity greatly enhanced by the localization of exciton at the disorder induced localized states.