Functionalization of 6H-SiC surfaces with organosilanes
Functionalization of 6H-SiC surfaces with organosilanes
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DOI：
10.1063/1.2908871
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发表时间：
2008-04
影响因子：
4
通讯作者：
S. Schoell;M. Hoeb;I. Sharp;W. Steins;M. Eickhoff;M. Stutzmann;M. Brandt
中科院分区：
文献类型：
--
作者：
S. Schoell;M. Hoeb;I. Sharp;W. Steins;M. Eickhoff;M. Stutzmann;M. Brandt
我们成功地证明了n型6H-碳化硅与有机硅烷的共价官能化。特别研究了十八烷基三甲氧基硅烷和氨基丙基二乙氧基甲基硅烷的湿法化学处理自组装层。通过接触角测量、原子力显微镜、热脱附和X射线光电子能谱研究了这些薄膜的结构和化学性质。有机层光滑，润湿角可达100°。脱附温度在830K范围内证明了有机分子与碳化硅表面的共价键。通过利用带有功能端基的自组装层，通过将蛋白质固定在微图案化的有机层上，展示了复杂分子的附着。
We demonstrate the successful covalent functionalization of n-type 6H-SiC with organosilanes. In particular, wet-chemically processed self-assembled layers of octadecyltrimethoxysilane and amino-propyldiethoxymethylsilane were investigated. The structural and chemical properties of these layers were studied by contact angle measurements, atomic force microscopy, thermal desorption, and x-ray photoelectron spectroscopy. The organic layers are smooth and wetting angles up to 100° are observed. Desorption temperatures in the range of 830K prove the covalent bonding of the organic molecules to the SiC surface. By utilizing self-assembled layers with functional end groups, attachment of complex molecules was demonstrated by immobilization of proteins on micropatterned organic layers.