摘要
Single crystal sapphire (Al2O3) samples were irradiated at 320 K by 208pb27+ ions with energy of 1.1 MeV/u to the fluences ranging from 1×1012 to 5×1014 ions/cm2 and annealed at 600, 900 and 1 100 K temperature. The modification of structure and optical properties induced by ion irradiation were analyzed by using PL and FTIR spectra. The PL measurements showed that absorption peaks located at 375, 390, 413, 450 and 516 nm appeared in irradiated samples (Fig. 1), the PL intensities of irradiated
Single crystal sapphire （Al2O3） samples were irradiated at 320 K by 208pb27＋ ions with energy of 1.1 MeV/u to the fluences ranging from 1×1012 to 5×1014 ions/cm2 and annealed at 600, 900 and 1 100 K temperature. The modification of structure and optical properties induced by ion irradiation were analyzed by using PL and FTIR spectra. The PL measurements showed that absorption peaks located at 375, 390, 413,
基金
Supported by National Natural Science Foundation of China and Natural Science Foundation of Gansu
