Presentation 2011-05-19
High-quality AlN/GaN distributed Bragg reflectors grown on AlN templates
Kouta YAGI, Mitsuru KAGA, Kouji YAMASHITA, Kenichirou TAKEDA, Motoaki IWAYA, Tetsuya TAKEUCHI, Satoshi KAMIYAMA, Isamu AKASAKI, Hiroshi AMANO,
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Abstract(in English) AlN/GaN multilayer structure have relatively large refractive index differences in the group-III nitride semiconductors, which are expected to obtain high reflectivity distributed Bragg reflectors (DBRs) with a relatively small number of pairs. On the other hand, due to the cracks caused by the lattice mismatch, it is difficult to fabricate DBRs having high reflectivities in a large area. In this paper, we fabricated AlN/GaN DBRs on AlN templates for the first time in order to suppress the cracks by minimizing the tensile strain in the DBR layers. A high reflectivity of 97.5% was achieved in the 30 pair AlN/GaN DBR on AlN template.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Distributed Bragg Reflector / crack / AlN / Reflectance
Paper # ED2011-18,CPM2011-25,SDM2011-31
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Committee ED
Conference Date 2011/5/12(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High-quality AlN/GaN distributed Bragg reflectors grown on AlN templates
Sub Title (in English)
Keyword(1) Distributed Bragg Reflector
Keyword(2) crack
Keyword(3) AlN
Keyword(4) Reflectance
1st Author's Name Kouta YAGI
1st Author's Affiliation Fac. Sci. & Eng., Meijo University()
2nd Author's Name Mitsuru KAGA
2nd Author's Affiliation Fac. Sci. & Eng., Meijo University
3rd Author's Name Kouji YAMASHITA
3rd Author's Affiliation Fac. Sci. & Eng., Meijo University
4th Author's Name Kenichirou TAKEDA
4th Author's Affiliation Fac. Sci. & Eng., Meijo University
5th Author's Name Motoaki IWAYA
5th Author's Affiliation Fac. Sci. & Eng., Meijo University
6th Author's Name Tetsuya TAKEUCHI
6th Author's Affiliation Fac. Sci. & Eng., Meijo University
7th Author's Name Satoshi KAMIYAMA
7th Author's Affiliation Fac. Sci. & Eng., Meijo University
8th Author's Name Isamu AKASAKI
8th Author's Affiliation Fac. Sci. & Eng., Meijo University:Akasaki Research Center, Nagoya University
9th Author's Name Hiroshi AMANO
9th Author's Affiliation Grad. Sch. of Eng., Nagoya University:Akasaki Research Center, Nagoya University
Date 2011-05-19
Paper # ED2011-18,CPM2011-25,SDM2011-31
Volume (vol) vol.111
Number (no) 44
Page pp.pp.-
#Pages 5
Date of Issue