Space charge limited corrections to the power figure of merit for diamond

Research output: Contribution to journalArticlepeer-review

Abstract

An interpretation of the unipolar figure of merit is formulated for wide bandgap (WBG) semiconductors based on the on-state specific resistance (R ON, sp) derived from the space charge limited current-voltage relationship (Mott-Gurney square law). The limitations of the traditional Ohmic R ON, sp for WBG semiconductors are discussed, particularly at low doping, while the accuracy of the Mott-Gurney based R ON, sp is confirmed by Silvaco ATLAS drift-diffusion simulations of diamond Schottky pin diodes. The effects of incomplete ionization are considered as well.

Original languageEnglish (US)
Article number223503
JournalApplied Physics Letters
Volume120
Issue number22
DOIs
StatePublished - May 30 2022

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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