Optimal Au deposition film for substrates used in scanning probe microscopy observations, such as monolayer membranes.
It is possible to create a surface structure with smooth terraces that are stable in atmospheric pressure and aligned in orientation through simple processing.
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basic information
This product is a substrate made by heating natural mica that has been cleaved in a vacuum and depositing approximately 100 nm of gold on top. By appropriately heating it in the atmosphere using hydrogen flame or butane gas flame, a smooth gold (111) surface was formed. It can be used as a substrate for adsorbing molecules and conducting STM observations.
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Applications/Examples of results
*For sizes other than standard, we can accommodate up to a maximum of 20×30mm. Regarding heat treatment: To obtain a gold surface oriented to Au(111), it is necessary for the customer to perform a heat treatment in air using a hydrogen flame or butane gas flame at approximately 700°C before use. The surface after heating exhibits a characteristic herringbone structure of Au(111) and has an average smooth terrace at the atomic level of about 150×150nm.
Company information
Unisoku was established in 1974 with the aim of becoming a creator of unique measuring instruments. It is a manufacturer that primarily develops and sells its own ultra-high vacuum scanning probe microscopes (SPM) to universities, public institutions, and private companies and research institutes. Over the years, it has developed and commercialized advanced measuring instruments such as high-speed spectroscopic measurement devices and scanning tunneling microscopes, delivering them to universities and research institutions both domestically and internationally, and its technological content has received high praise from researchers in the field of basic research. In recent years, scanning probe microscopes have significantly improved in performance and multifunctionality, particularly as a means of observing sample surfaces at the atomic level. Their applications are expanding mainly from the field of physics to chemistry and bio-related fields, making them indispensable tools in nanotechnology and nanoscience.
