Presentation 2006-10-06
Impact of acceptor concentration on electronic properties of n-GaN/p-SiC heterojunction for GaN/SiC heterojunction bipolar transistor
Koichi AMARI, Jun SUDA, Tsunenobu KIMOTO,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) The electrical properties of n^+-GaN/p^+-SiC heterojunction diodes have been investigated by varying the acceptor concentration of p^+-SiC epilayers (N_a) and polytype of SiC (4H- and 6H-SiC). The current-voltage (I-V) characteristics of diodes with N_a~1x10^<19> cm^<-3> were dominated by tunneling-assisted current. The diodes with N_a~1x10^<18> cm^<-3> exhibit excellent characteristics and 6H-SiC may be a better choice from a view point of electron injection into p-SiC base. Compared to previous investigations (N_a<10^<16> cm^<-3>), we could obtain good rectification with p-SiC doped to two-order-of-magnitude higher acceptor concentration.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) GaN / SiC / heterojunction / MBE / HBT / EL / diode
Paper # ED2006-172,CPM2006-109,LQE2006-76
Date of Issue

Conference Information
Committee LQE
Conference Date 2006/9/28(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Impact of acceptor concentration on electronic properties of n-GaN/p-SiC heterojunction for GaN/SiC heterojunction bipolar transistor
Sub Title (in English)
Keyword(1) GaN
Keyword(2) SiC
Keyword(3) heterojunction
Keyword(4) MBE
Keyword(5) HBT
Keyword(6) EL
Keyword(7) diode
1st Author's Name Koichi AMARI
1st Author's Affiliation Department of Electronic Science and Engineering, Kyoto University()
2nd Author's Name Jun SUDA
2nd Author's Affiliation Department of Electronic Science and Engineering, Kyoto University
3rd Author's Name Tsunenobu KIMOTO
3rd Author's Affiliation Department of Electronic Science and Engineering, Kyoto University
Date 2006-10-06
Paper # ED2006-172,CPM2006-109,LQE2006-76
Volume (vol) vol.106
Number (no) 271
Page pp.pp.-
#Pages 6
Date of Issue