Electrical characterization of low defect density nonpolar (11¯20) a-plane GaN grown with sidewall lateral epitaxial overgrowth (SLEO)

被引:0
作者
Bilge Imer
Benjamin Haskell
Siddharth Rajan
Stacia Keller
Umesh K. Mishra
Shuji Nakamura
James S. Speck
Steven P. DenBaars
机构
[1] University of California–Santa Barbara,Materials Department
[2] Japan Science and Technology Corporation (NICP/ERATO JST) Group,Exploratory Research for Advanced Technology
[3] University of California–Santa Barbara,Electrical and Computer Engineering Department
[4] University of California–Santa Barbara,undefined
来源
Journal of Materials Research | 2008年 / 23卷
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摘要
We studied the effect of extended defects on electrical characteristics of Si doped n-type nonpolar a-plane GaN films. The n-type GaN layers were grown on co-loaded reduced defect density sidewall lateral epitaxial overgrowth (SLEO) a-plane GaN templates and high defect density planar a-plane GaN templates by metalorganic chemical vapor deposition (MOCVD). The highest conductivity value was observed at the carrier concentration of 1.05 × 1019 cm−3 as 261.12 cm2/Vs for SLEO a-GaN and 106.77 cm2/Vs for the planar a-plane GaN samples. At the same doping level, the carrier compensation for SLEO samples was ∼12% less than planar samples.
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页码:551 / 555
页数:4
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