Due to the inherent transparency of diamond across a wide wavelength range, optical methods of characterization have long been the go-to methods for characterizing inclusions, impurities, and color-causing defects. Except for diamond window applications, it is usually these features that make the diamond most interesting or valuable.
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Evolve Diamonds Is Making A Splash
Physica Status Solidi (a) Cover: Nov 2018
Diamond Power Field Effect Transistors
Diamond's properties (highest thermal conductivity, high hole & electron mobilities, & high electric breakdown field) predict that diamond field‐effect transistors (FETs) will have superior high‐power high‐frequency performance over FETs formed in other semiconductors. This article reviews the state of the art for FET and substrate development.
USA Patent Issued: June 2018
US9,991,113: Systems and Methods for Fabricating Single-Crystalline Diamond Membranes
A buffer layer is employed to fabricate diamond membranes and allow reuse of diamond substrates. In this approach, diamond membranes are fabricated on the buffer layer, which in turn is disposed on a diamond substrate that is lattice-matched to the diamond membrane.
Diamond & Related Materials: Mar 2018
Chemical and semiconducting properties of NO2-activated H-terminated diamond
After NO2 exposure of H-terminated diamond, used for field effect diamond transistors, no NO2– is present on the diamond surface, but instead NO3–.
Surface H and NO3– concentrations and surface conductance are stable in dry N2.