Transmittance Properties and TEM Observation of Metal Doped Glass by Field-Assisted Ion Exchange
Transmittance Properties and TEM Observation of Metal Doped Glass by Field-Assisted Ion Exchange
复制标题
场辅助离子交换金属掺杂玻璃的透射率特性及 TEM 观察
DOI：
10.1088/1757-899x/61/1/012011
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Akira CHIBA and Noboru MORITA
中科院分区：
文献类型：
--
作者：
Souta MATSUSAKA;Taketsugu NOMURA;Hirofumi HIDAI;Akira CHIBA and Noboru MORITA
采用电场辅助离子交换法将金属（银或铜）离子掺杂到硼硅酸盐玻璃中。测量金属掺杂玻璃的光学透射率以确定掺杂玻璃表现出优异的激光微加工性的原因。发现掺杂的金属离子增强了玻璃的光吸收，特别是在紫外范围内。这又促进了入射激光辐射的有效吸收，并因此改善了玻璃的激光加工性。金属掺杂的玻璃还在可见光范围内表现出一些吸收，导致轻微的黄棕色着色。透射电子显微镜（TEM）观察表明，金属离子已经渗透到玻璃中，并在其中形成纳米尺寸（约6 nm）的细颗粒。为了控制紫外-可见光范围内的光学特性，在离子交换掺杂步骤之后对金属掺杂的玻璃进行热处理。在723 K下热处理的银掺杂玻璃的情况下，银纳米颗粒局部聚集，产生不均匀的结构。热处理后的样品在紫外光范围内有很高的光吸收。
Metal (silver or copper) ions were doped into borosilicate glass using an electric field-assisted ion exchange method. The optical transmittance of the metal doped glass was measured to determine why the doped glass exhibited an excellent laser micro-machinability. The doped metal ions were found to have enhanced the optical absorption of the glass, especially in the ultraviolet range. This in turn facilitated the efficient absorption of incident laser irradiation, and hence improved laser machinability of the glass. The metal doped glass also exhibited some absorption in the visible range, leading to a slight yellow-brown coloration. Transmission electron microscope (TEM) observations indicated that the metal ions had penetrated the glass and therein formed nanometer-sized (~ 6 nm) fine particles. In an attempt to control the optical characteristics in the ultraviolet-visible range, metal doped glass was heat-treated following the ion exchange doping step. In the case of silver-doped glass with heat treatment at 723 K, silver nanoparticles aggregated locally yielding an inhomogeneous structure. The heat-treated samples had a high optical absorption in the ultraviolet range.