磷酸盐发光玻璃及微晶玻璃的制备与性能研究

发布时间：2018-05-17 23:44

本文选题：磷酸盐 + 玻璃与微晶玻璃　；参考：《桂林电子科技大学》2015年硕士论文

【摘要】：本文采用熔融法和可控析晶法分别制备磷酸盐玻璃和微晶玻璃,采用DSC,XRD,SEM和荧光光谱仪研究了玻璃组成对玻璃形成能力的影响;稀土掺杂磷酸盐玻璃的光谱特性,以及热处理制度和共掺稀土离子对微晶玻璃发光性能的影响,得到如下结论:1.探讨了玻璃组成对SrO-ZnO-P2O5(SZP)体系玻璃形成能力的影响:添加适量的氧化物(K2O、Al2O3、B2O3、Sb2O3)能提高玻璃的稳定性和玻璃形成能力。其中,添加K2O对提高玻璃形成能力最为有效。当K2O=2%mol时,稳定性参数?T和H'分别为107和0.2198,比基础玻璃的?T?93和H'?0.1876大为提高。2.系统研究了稀土离子掺杂SrO-ZnO-P2O5-K2O(SZPK)玻璃的发光性能:理清了单个稀土离子(Tm3+、Tb3+、Sm3+、Eu3+、Mn2+、Dy3+)掺杂SZPK玻璃的光谱特性和显色情况:在近紫外激发下,掺Tm3+玻璃样品呈蓝光发射;掺Tb3+玻璃样品呈绿光发射;掺Sm3+、Eu3+、Mn2+玻璃样品均呈红光发射;掺Dy3+玻璃样品呈白光发射。在近紫外激发下,双掺Tb3+/Eu3+和Tb3+/Sm3+玻璃样品的色坐标分别为(0.360,0.324)和(0.335,0.327),与标准白光的色坐标(0.333,0.333)接近。3.研究了在近紫外激发下三掺离子玻璃样品的光谱特性。对于三掺Tm3+/Tb3+/Eu3+的玻璃样品,随着Tb3+含量的增加,发光颜色从白光区逐渐过渡到绿光区;对于三掺Tm3+/Tb3+/Mn2+的玻璃样品,随着Mn2+含量的增加,发光颜色从绿光区逐渐过渡到白光区。荧光寿命衰减曲线及寿命计算表明:Tm3+、Tb3+到Mn2+存在能量转换。当Mn2+掺杂量超过2%mol时,出现浓度淬灭现象。4.研究了多离子掺杂微晶玻璃样品的发光性能,探讨了热处理温度对样品发光强度的影响。结果发现:随着热处理温度的升高,晶粒析出增加,发光强度也随之增强。析出的功能主晶相为SrZnP2O7。此外,研究了三掺Ce3+/Tb3+/Mn2+微晶玻璃样品的光谱特性。随着Mn2+含量的增加,Ce/Tb/Mn三掺微晶玻璃的发光颜色逐渐由冷白光区往暖白光区移动。
[Abstract]:Phosphate glass and glass ceramics were prepared by melting and controllable crystallization methods. The effects of glass composition on the glass forming ability were studied by DSC, XRD, SEM and fluorescence spectrometer, the spectral properties of rare earth doped phosphate glasses, and the effects of heat treatment and Co doped dilute soil ions on the luminescence properties of glass ceramics were obtained. The following conclusions are as follows: 1. the effect of glass composition on the glass forming ability of SrO-ZnO-P2O5 (SZP) system is investigated. Adding a proper amount of oxide (K2O, Al2O3, B2O3, Sb2O3) can improve the glass stability and glass forming ability. Among them, the addition of K2O is the most effective for improving the glass forming ability. When K2O=2%mol, the stability parameters, T and H'are 107 and 0.219, respectively. 8, compared with the basic glass? T? 93 and H'? 0.1876, the luminescence properties of rare earth doped SrO-ZnO-P2O5-K2O (SZPK) glass were studied by.2. system: clear the spectral characteristics and color rendering of single rare earth ions (Tm3+, Tb3+, Sm3+, Eu3+, Mn2+, Dy3+) doped SZPK glass. The glass samples were emitted green light; the samples of Sm3+, Eu3+ and Mn2+ glass were all red light emission, and the samples doped with Dy3+ glass were emitted in white light. Under the near ultraviolet excitation, the color coordinates of the double Tb3+/Eu3+ and Tb3+/Sm3+ glass samples were respectively (0.360,0.324) and (0.335,0.327), and the standard white light color coordinates (0.333,0.333) were close to.3.. The spectral characteristics of the lower three doped glass samples. For three Tm3+/Tb3+/Eu3+ doped glass samples, with the increase of Tb3+ content, the luminescence color gradually transition from the white light region to the green light region. For three Tm3+/Tb3+/Mn2+ doped glass samples, with the increase of Mn2+ content, the luminescence color transition from green area to white light region. Fluorescence lifetime attenuation curve. The calculation of line and life shows that there is energy conversion between Tm3+, Tb3+ and Mn2+. When Mn2+ doping exceeds 2%mol, the concentration quenching phenomenon appears.4. to study the luminescence properties of multi ion doped glass ceramics, and the effect of heat treatment temperature on the luminescence intensity of the samples. The light intensity is also enhanced. The precipitated functional main crystal phase is SrZnP2O7., and the spectral properties of three Ce3+/Tb3+/Mn2+ doped glass ceramics are studied. With the increase of Mn2+ content, the luminescence color of Ce/Tb/Mn doped glass ceramics is gradually moved from the cold white light region to the warm white light region.
【学位授予单位】：桂林电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ171.7

【共引文献】