CAJ | 학술논문

在还原气氛下,采用高温熔融法制备了Eu2+/Ce3+共掺的高钆氧化物玻璃.荧光性能测试显示, Ce3+能够有效地敏化Eu2+的发光,使Eu2+的发光强度增强了2.3倍;测试对比了Ce3+发光的荧光寿命随Eu2+的掺入前后的变化情况,计算得出Ce3+→Eu2+的能量传递效率可达61.5%,并进一步探讨了其能量传递机理.研究表明:在高钆氧化物玻璃中,采用Eu2+和Ce3+共掺的方法可有效地增强Eu2+的发光性能和闪烁性能.
재환원기분하,채용고온용융법제비료Eu2+/Ce3+공참적고구양화물파리.형광성능측시현시, Ce3+능구유효지민화Eu2+적발광,사Eu2+적발광강도증강료2.3배;측시대비료Ce3+발광적형광수명수Eu2+적참입전후적변화정황,계산득출Ce3+→Eu2+적능량전체효솔가체61.5%,병진일보탐토료기능량전체궤리.연구표명:재고구양화물파리중,채용Eu2+화Ce3+공참적방법가유효지증강Eu2+적발광성능화섬삭성능.
Eu2+/Ce3+ single doped and co-doped oxide glasses with high Gd2O3 concentration were prepared in a reducing atmosphere using a high-temperature glass melting method. Excitation and emission spectra measurements indicated that Ce3+ can enhance the luminescence intensity of Eu2+effectively, which exhibited a 2.3 times increasa. The difference between the luminescence lifetimes of Eu2+with and without Ce3+doping indicated that the energy transfer efficiency could reach 61.5%, for which the energy transfer mechanism was investigated further. These researches suggest that co-doping method can significantly improve the luminescence capabilities of Eu3+in the oxide glasses with high Gd2O3 concentration.