溶胶—凝胶法制备ZBS：M光存储玻璃薄膜
发布时间：2018-08-30 14:57
【摘要】： Mn~(2+)掺杂的ZnO-B_2O_3-SiO_2(ZBSM)体系玻璃薄膜是一种新型的光信息存储材料,其具有性能稳定、易于加工等特点,并且在存储密度、读写速率等方面优势明显。在信息存储领域有着十分广阔的应用前景。是当今光电信息材料领域研究的热点和重点之一。 采用硝酸锌(Zn(NO_3)_2·6H_2O)、正硅酸乙酯(C_8H_(20)O_4Si)、硼酸(H_3BO_3)为基质原料,掺杂光活性金属Mn~(2+)采用溶胶-凝胶法制备了具有光存储性能的ZBSM体系玻璃薄膜。并研究了激活离子、基质组成比例等不同因素对ZBSM体系玻璃薄膜光存储性能的影响。 通过实验可以得到ZnO-B_2O_3-SiO_2体系光存储玻璃薄膜的制备工艺如下:基质原料以及所掺杂的光活性离子的比例为:Zn(NO_3)_2·6H_2O:H_3BO_3:C_8H_(20)O_4Si: Mn(CH_3COO)_2·4H_2O(摩尔比)=6:2:2:0.1;控制水解的pH值为1.0,在60℃的水浴条件下水解大约24h,在60℃的烘箱内干燥约19h。采用浸渍提拉法进行镀膜处理,根据所要求薄膜厚度的不同选择不同的镀膜次数,但是一般不超过5次。试样最终的热处理温度在650℃左右。 利用荧光光谱和热释光谱两种分析测试手段,可以得出ZBSM体系光存储玻璃薄膜在光存储性能方面主要具有以下几个特点:材料的荧光和光激励余辉同样是来源于Mn~(2+)的~4T_1(~4G)→~6A_(1g)(~6S)跃迁;材料内部分别存在着两个能级深度为0.80eV和1.02eV的缺陷陷阱中心。其中利用能级深度为1.02eV的陷阱可以实现对电子的稳定存储。 通过对同体系ZBSM微晶玻璃的制备和结构性能研究,进一步对比分析了ZBSM体系光存储玻璃薄膜的光激励发光性能和结构特点。
[Abstract]:Mn~ (2) doped ZnO-B_2O_3-SiO_2 (ZBSM) glass film is a new type of optical information storage material. It has the characteristics of stable performance, easy processing, and has obvious advantages in storage density, reading and writing rate and so on. In the field of information storage has a very broad application prospects. It is one of the hotspots and emphases in the field of optoelectronic information materials. Using zinc nitrate (Zn (NO_3 (2 6H_2O), ethyl orthosilicate (C _ S _ (8) H _ (20) O_4Si) and boric acid (H_3BO_3) as raw materials, doped photoactive metal (Mn~ (2), the glass films of ZBSM system with optical storage properties were prepared by sol-gel method. The effects of different factors, such as activation ion and matrix ratio, on the optical storage properties of ZBSM glass films were studied. The preparation process of optical storage glass thin films in ZnO-B_2O_3-SiO_2 system can be obtained as follows: the ratio of matrix raw material and doped photoactive ions is: Zn (NO_3) 26H _ 2O: C _ 8H _ (20) O _ (4Si): Mn (CH_3COO) _ 2 4H_2O (molar ratio) 6: 2: 20.1; pH value of hydrolysis is 1.0, and water is in water at 60 鈩，
本文编号：2213417
[Abstract]:Mn~ (2) doped ZnO-B_2O_3-SiO_2 (ZBSM) glass film is a new type of optical information storage material. It has the characteristics of stable performance, easy processing, and has obvious advantages in storage density, reading and writing rate and so on. In the field of information storage has a very broad application prospects. It is one of the hotspots and emphases in the field of optoelectronic information materials. Using zinc nitrate (Zn (NO_3 (2 6H_2O), ethyl orthosilicate (C _ S _ (8) H _ (20) O_4Si) and boric acid (H_3BO_3) as raw materials, doped photoactive metal (Mn~ (2), the glass films of ZBSM system with optical storage properties were prepared by sol-gel method. The effects of different factors, such as activation ion and matrix ratio, on the optical storage properties of ZBSM glass films were studied. The preparation process of optical storage glass thin films in ZnO-B_2O_3-SiO_2 system can be obtained as follows: the ratio of matrix raw material and doped photoactive ions is: Zn (NO_3) 26H _ 2O: C _ 8H _ (20) O _ (4Si): Mn (CH_3COO) _ 2 4H_2O (molar ratio) 6: 2: 20.1; pH value of hydrolysis is 1.0, and water is in water at 60 鈩，
本文编号：2213417
本文链接：https://www.wllwen.com/shekelunwen/minzhuminquanlunwen/2213417.html
