| Title |
Photoluminescence of Undoped and Ho^{3+}-Doped ZnSe, Mg_{0.15}Zn_{0.85}Se Single Crystals |
| Authors |
김남오(Kim, Nam-O) ; 김형곤(Kim, Hyeong-Gon) ; 오금곤(O, Geum-Gon) |
| Keywords |
Photoluminescence ; Emission ; Chemical transport reaction ; Ligh -emitting devices ; Optoelectronics devices |
| Abstract |
ZnSe, ZnSe:Ho/sup 3+/, Mg/sub x/Zn/sub 1-x/Se and Mg/sub x/Zn/sub 1-x/Se:Ho/sup 3+/ crystals were grown by the chemical transport reaction method. The crystal structures and optical energy band gaps of the single crystals were investigated. Their photoluminescence(PL) spectra were measured at 10 [K]. Sharp emission peaks in the blue-green wavelength range and broad emission peaks in the yellow-red wavelength range were observed. The single crystals doped with 1.0 [mol%] of holmium did not show the sharp emission peaks because of defects which were thought to be originated to the holmium dopant. |