创历史新低的隧道结比电阻率(<3×10−4 Ωcm2)在GaN带间隧道结

70th Device Research Conference Pub Date : 2012-06-18 DOI:10.1109/DRC.2012.6257007

S. Krishnamoorthy, F. Akyol, Jing Yang, P. Park, R. Myers, S. Rajan

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引用次数: 0

摘要

我们报道了氮化镓中创纪录高效率带间隧道结的设计、制造和表征。通过使用极化工程GaN/InGaN/GaN隧道结，我们已经实现了低至3×10-4 Ωcm2的隧道结比电阻率值。利用稀土氮化物(GdN)纳米岛嵌入简并掺杂GaN p n结的另一种方法导致隧道结的比电阻率为2.7×10-3 Ωcm2。这是氮化镓中隙态辅助隧穿的首次报道。

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Record low tunnel junction specific resistivity (< 3×10−4 Ωcm2) in GaN inter-band tunnel junctions

We report on the design, fabrication, and characterization of record high efficiency inter-band tunnel junctions in GaN. We have achieved tunnel junction specific resistivity values as low as 3×10^-4 Ωcm² by using polarization engineered GaN/InGaN/GaN tunnel junctions. An alternate approach of using rare earth nitride (GdN) nano-islands embedded in degenerately doped GaN p n junction has resulted in tunnel junction specific resistivity of 2.7×10^-3 Ωcm². This is the first report of mid gap states assisted tunneling in GaN.

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70th Device Research Conference

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