CN102381676B - 石英微针表面纳米金属链及其制备方法 - Google Patents
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 40
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Abstract
本发明公开了一种石英微针表面纳米金属链及其制备方法，该石英微针表面纳米金属链由石英微针、位于微针表面的金属纳米链颗粒组成；微针底面直径2-200μm，纳米金属链颗粒直径10nm到1μm。其制备方法包括以下步骤：（1）在底面直径为2～200μm的石英微针尖端表面包覆一层10nm～1μm厚度的金属薄膜；（2）将包覆金属薄膜的石英微针在适当的气氛条件下热处理即得石英微针表面的纳米金属链。本发明结构新颖，制备简单，可在微纳光学、生物、传感、信息等领域获得应用。
Description
技术领域
本发明涉及一种石英微针表面纳米金属链及其制备方法，属于材料微结构及其制备技术领域。
背景技术
纳米金属链在光的激发下，单个纳米颗粒产生的表面等离激元共振将产生耦合，甚至可沿着纳米金属链传播形成传播的表面等离激元，实现光的亚波长传输。因此在微纳光学、生物、传感、信息等领域将具有重要的应用。在石英微针（中国专利ZL 2007 1 0134575.2）的侧壁表面制备纳米金属链，形成新型的微结构，使得光沿着石英光纤进入石英微针，可方便地激发金属表面等离激元，具有重要的科研和应用价值。目前的纳米金属链的制备普遍采用光刻或聚焦离子束刻蚀的方法制备，但制备的尺度相对较大。而在石英微针表面纳米金属链的制备是一个技术难点，需要寻求新的制备技术与方法获得石英微针表面纳米金属链。
发明内容
本发明的目的是提供一种石英微针表面纳米金属链，使该微结构材料可以在微纳光学、生物、传感、信息等领域获得广泛应用。本发明的另一目的是提供该微结构材料的制备方法。
本发明所述的石英微针表面纳米金属链，由石英微针、位于微针表面的金属纳米链颗粒组成；微针底面直径2-200μm，纳米金属链颗粒直径10nm到1μm。
本发明所述的石英微针表面纳米金属链的制备方法，包括以下步骤：
（1）在底面直径为2～200μm的石英微针尖端表面通过化学镀，或电镀，或溅射，或涂覆，或以上方法任意组合包覆一层10nm～1μm厚度的金属薄膜；
（2）将包覆金属薄膜的石英微针在空气或惰性气氛条件下在高于金属熔点的温度下热处理即得石英微针表面的纳米金属链。
本发明与现有技术相比，其显著优点是：（1）可获得新型的石英微针表面纳米金属链。（2）成本低廉，无需大型仪器，工艺简单可靠。
附图说明
图1是本发明制备的石英微针表面纳米金链的扫描电镜图。
具体实施方式
实施例1：在底面直径为10μm的石英微针尖端表面化学镀包覆一层10nm厚度的金，然后将包覆金薄膜的石英微针在空气中在1100℃下进行热处理，即得石英微针表面的纳米金链。
实施例2：在底面直径为200μm的石英微针尖端表面涂覆包覆一层1μm厚度的银，然后将包覆银薄膜的石英微针在氩气中在970℃下进行热处理，即得石英微针表面的纳米银链。
实施例3：在底面直径为2μm的石英微针尖端表面溅射包覆一层20nm厚度的锡，然后将包覆锡薄膜的石英微针在空气中在240℃下进行热处理，即得石英微针表面的纳米锡链。
实施例4：在底面直径为30μm的石英微针尖端表面电镀包覆一层100nm厚度的镍，然后将包覆镍薄膜的石英微针在氩气中1460℃下进行热处理，即得石英微针表面的纳米镍链。
实施例5：在底面直径为100μm的石英微针尖端表面溅射包覆一层30nm厚度的金银合金，然后将包覆金银合金薄膜的石英微针在氦气中在1000℃下进行热处理，即得石英微针表面的纳米金银合金链。
实施例6：在底面直径为50μm的石英微针尖端表面溅射包覆一层50nm厚度的铝，然后将包覆铝薄膜的石英微针在氦气中在700℃下进行热处理，即得石英微针表面的纳米铝链。
实施例7：在底面直径为10μm的石英微针尖端表面化学镀包覆一层20nm厚度的铜，然后将包覆铜薄膜的石英微针在氩气中在1100℃下进行热处理，即得石英微针表面的纳米铜链。
Claims (6)
1.石英微针表面纳米金属链，其特征是，所述石英微针表面纳米金属链由石英微针、位于微针表面的金属纳米链颗粒组成；纳米金属链的个数为1条，纳米链颗粒沿着石英微针的轴向有序排列；微针底面直径2-200μm，纳米金属链颗粒直径10nm到1μm。
2.根据权利要求1所述的石英微针表面纳米金属链，其特征是，所述的金属为碱金属、或碱土金属、或过渡金属、或其它金属，或其合金。
3.制备如权利要求1所述的石英微针表面纳米金属链的方法，其特征是该方法包括以下步骤：
（1）在底面直径为2～200μm的石英微针尖端表面包覆一层10nm～1μm厚度的金属薄膜；
（2）将包覆金属薄膜的石英微针在适当的气氛条件下热处理即得所述石英微针表面的纳米金属链。
4.根据权利要求3所述的石英微针表面纳米金属链的制备方法，其特征是步骤（1）中所述的包覆方法为化学镀，或电镀，或溅射，或涂覆，或以上方法任意组合。
5.根据权利要求3所述的石英微针表面纳米金属链的制备方法，其特征是步骤（2）中所述的适当的气氛条件为空气，或惰性气体气氛。
6.根据权利要求3所述的石英微针表面纳米金属链的制备方法，其特征是步骤（2）中所述的热处理温度为高于金属熔点的温度。
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| CN102849672A (zh) * | 2012-09-17 | 2013-01-02 | 无锡英普林纳米科技有限公司 | 表面拉曼增强微结构衬底及其制备方法 |
| CN106646695A (zh) * | 2016-12-14 | 2017-05-10 | 上海电机学院 | 一种表面等离激元量子信息传输线 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1434461A (zh) * | 2003-03-13 | 2003-08-06 | 东南大学 | 制备纳米管探针针尖的方法 |
| CN101011742A (zh) * | 2007-02-08 | 2007-08-08 | 中山大学 | 一种可控制备金属纳米颗粒的方法 |
| CN101653735A (zh) * | 2008-08-21 | 2010-02-24 | 首尔大学校产学协力团 | 尖端上的催化剂颗粒 |
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| AU2001294876A1 (en) * | 2000-09-29 | 2002-04-08 | President And Fellows Of Harvard College | Direct growth of nanotubes, and their use in nanotweezers |
| US7252749B2 (en) * | 2001-11-30 | 2007-08-07 | The University Of North Carolina At Chapel Hill | Deposition method for nanostructure materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1434461A (zh) * | 2003-03-13 | 2003-08-06 | 东南大学 | 制备纳米管探针针尖的方法 |
| CN101011742A (zh) * | 2007-02-08 | 2007-08-08 | 中山大学 | 一种可控制备金属纳米颗粒的方法 |
| CN101653735A (zh) * | 2008-08-21 | 2010-02-24 | 首尔大学校产学协力团 | 尖端上的催化剂颗粒 |
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