Purchase of a Scanning Probe Microscope

这个奖项从化学研究仪器和设施计划是帮助化学系在科罗拉多大学博尔德分校在购买扫描探针显微镜（SPM）。 该仪器将用于以下研究方案： 1)在液晶膜下生长的高度定向热解石墨上的异质外延二维晶体;以及玻璃上的自组装单分子膜。 2)化学沉积膜的合成和SPM形貌表征。 扫描探针显微镜（SPM）使研究人员能够直接对原子进行成像。 该技术使用压电效应，其中包括将一个非常尖锐的金属针带到样品表面的几埃范围内。 该距离足够小，以使电子泄漏或穿过差距并产生微小电流。 当针尖和样品之间的差距增大时，电流减小。 当探针穿过样品，在其表面上来回移动时，探针描绘出样品表面原子的等高线图。 SPM用于控制用于制造半导体电路的材料。

This award from the Chemistry Research Instrumentation and Facilities program is to aid the Department of Chemistry at University of Colorado at Boulder in the purchase of a scanning probe microscope (SPM). This instrument will be used in the following research programs: 1) Heteroepitaxial 2-D crystals on highly oriented pyrolytic graphite which grow under liquid crystal films; and Self-assembled monolayers on glass. 2) Synthesis and topographic characterization by SPM of chemically deposited films. The scanning probe microscope (SPM) enables researchers to image atoms directly. The technique uses the piezoelectric effect which involves bringing an extremely sharp metal needle within a few angstroms of the samples surface. The distance is small enough for electrons to leak or tunnel across the gap and generate a minute current. As the gap between the tip and the sample increases, the current decreases. As the probe crosses the sample, moving back and forth across its surface, the probe traces out a contour map of the sample's surface atoms. The SPM is used in the control of material used to fabricate semiconductor circuits.