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

Surdi, Harshad; Thornton, Trevor; Nemanich, Robert J.; Goodnick, Stephen M.

doi:10.1063/5.0087059

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

Journal Article · Fri Jun 03 00:00:00 EDT 2022 · Applied Physics Letters

DOI:https://doi.org/10.1063/5.0087059· OSTI ID:1979058

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Arizona State University, Tempe, AZ (United States); Arizona State Univ., Tempe, AZ (United States)
Arizona State University, Tempe, AZ (United States)

An interpretation of the unipolar figure of merit is formulated for wide bandgap (WBG) semiconductors based on the on-state specific resistance (RON,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.

View Accepted Manuscript (DOE)

Research Organization:: Arizona State University, Tempe, AZ (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0021230

OSTI ID:: 1979058

Alternate ID(s):: OSTI ID: 1871049

Journal Information:: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 22 Vol. 120; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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

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