Presentation 2002/6/6
Control of n-type conduction for Si-doped AlN and AlGaN with high Al content
Yoshitaka TANIYASU, Makoto KASU, Naoki KOBAYASHI,
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Abstract(in English) We have obtained n-type conductive Si-doped AlN and Al_xGa_1-xN with high Al content by intentionally controlling the Si dopant density, [Si]. The Si-doped AlN showed the n-type conduction when the [Si] was less than 3x10^19 cm^-3. When the [Si] was more than 3x10^19 cm^-3, it became highly resistive due to the self-compensation of Si donors. This indicates that the self-compensation plays an important role at higher [Si] and determines the upper doping limit of Si for AlGaN. For x > 0 49 the ionization energy of Si donor increased sharply with increasing Al content. This resulted in a sharp decrease in the highest obtainable electron concentration with increasing Al content for the Si-doped Al_xGa_1-xN.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) AlN / AlGaN / n-type conduction / doping / self-compensation
Paper # LQE2002-34
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Committee LQE
Conference Date 2002/6/6(1days)
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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) Control of n-type conduction for Si-doped AlN and AlGaN with high Al content
Sub Title (in English)
Keyword(1) AlN
Keyword(2) AlGaN
Keyword(3) n-type conduction
Keyword(4) doping
Keyword(5) self-compensation
1st Author's Name Yoshitaka TANIYASU
1st Author's Affiliation NTT Basic Research Laboratories, NIT Corporation()
2nd Author's Name Makoto KASU
2nd Author's Affiliation NTT Basic Research Laboratories, NIT Corporation
3rd Author's Name Naoki KOBAYASHI
3rd Author's Affiliation NTT Basic Research Laboratories, NIT Corporation
Date 2002/6/6
Paper # LQE2002-34
Volume (vol) vol.102
Number (no) 117
Page pp.pp.-
#Pages 4
Date of Issue