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- W2027757708 endingPage "04EP10" @default.
- W2027757708 startingPage "04EP10" @default.
- W2027757708 abstract "The fabrication processes, electrical characteristics, and reliability of the Schottky barrier diodes (SBDs) on an n-type 4H-silicon carbide (SiC) substrate are investigated. To modulate the Schottky barrier height (SBH), titanium dioxide (TiO 2 ) is inserted at the interface between the metal and the SiC substrate. Ni, Mo, Ti, and Al are chosen to form SBDs. The maximum SBH modulation of 0.3 eV is obtained with a 5-nm-thick TiO 2 layer. The SBH pinning factors of the SBDs without TiO 2 insertion and with 2-nm-thick TiO 2 insertion are similar. Therefore, the mechanism of the SBH modulation is attributed to the interface dipole-induced potential drop. Finally, the reliability of the SBD with TiO 2 insertion is evaluated. The SBH, ideality factor, and reverse leakage current are stable after high forward current stress at 300 A/cm 2 for 15000 s. This work provides a simple method to modulate the SBH on SiC and is feasible for SBD application." @default.
- W2027757708 created "2016-06-24" @default.
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- W2027757708 date "2014-03-06" @default.
- W2027757708 modified "2023-09-27" @default.
- W2027757708 title "Schottky barrier height modification of metal/4H-SiC contact using ultrathin TiO<sub>2</sub> insertion method" @default.
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- W2027757708 doi "https://doi.org/10.7567/jjap.53.04ep10" @default.
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