Chemical Vapor Deposition (single image)
Medium:Black and White Photograph
Height: 16 in
Width: 20 in
A close-up image from an electron microscope of a diamond crystal.
This photograph depicts a scanning microscope image of multiply twinned diamond crystals grown by chemical vapor deposition.
In the 1960's Professor Angus and Professor Nelson Gardner published studies of chemical vapor deposition (CVD) of diamond. Since that early work, this field has gone from an object of scorn, to a curiosity, to a significant industrial process practiced throughout the world. Growth rates have increased from the minuscule to where several carat single crystals can be grown in reasonable times. Diamond CVD is an enabling technology that permits the exploitation of diamond's exceptional properties outside its traditional role in cutting and grinding. For example, CVD diamond is used for instrument windows for high power microwave, infrared and ultraviolet devices, for wide area and integrated heat management systems, for radiation detectors (including in the Large Hadron Collider at CERN), and in diamond electrodes for use in aggressive environments and in electrochemical-based detectors. In addition to diamond, Professor Angus and Professor Kathleen Kash have studied novel methods for synthesis of gallium nitride and indium nitride.
Professor Heidi Martin, Professor Uziel Landau and Professor Angus performed some of the earliest studies of conducting diamond for electrochemical electrodes. This work was the first to show the very wide potential window for diamond, which enables numerous applications.