ABSTRACT

Diamond is a promising material for electronic and optical devices under severe conditions because it has a large electron energy gap. Diamond is also an attractive material for high-frequency and high-power devices due to its high breakdown field, high electron and hole mobilities, and low dielectric constant. Figures of merit for materials are useful to compare diamond and other semiconductors and to consider the advantages of different materials for certain types of electronic applications. The author shows three figures of merit, Johnson’s figure of merit, Keyes’ figure of merit, and Baliga’s figure of merit, and discusses the performance of diamond devices.