The 65h JSAP Spring Meeting, 2018

Presentation information

Symposium (Oral)

Symposium » Materials Science and Advanced Electronics Created by Singularity of Nitride Semiconductors: How far can we control the defects? Advanced characterization and functional exploration

[19p-E202-1~8] Materials Science and Advanced Electronics Created by Singularity of Nitride Semiconductors: How far can we control the defects? Advanced characterization and functional exploration

Mon. Mar 19, 2018 1:30 PM - 5:30 PM E202 (57-202)

Akira Sakai(Osaka Univ.), Akira Uedono(Tsukuba Univ.)

4:30 PM - 5:00 PM

[19p-E202-7] Electron Microscpic Study on Multiscale Defects in Wide Gap Materials

Takanori Kiguchi1, Takahisa Shiraishi1, Toyohiko J. Konno1, Tomoyuki Tanikawa1 (1.Tohoku Univ.)

Keywords:galium nitride, transmission electron microscopy, lattice defect

HAADF/LAADF/ABF-STEM、EELS、超高圧TEMを活用し、電子・光学デバイスとして最も重要な材料の1つである窒化物などワイドギャップ材料の界面構造、極性構造、積層欠陥、貫通転位、量子井戸構造といったマルチスケールな特異構造について、結晶構造-局所弾性場-局所電子状態といった視点から解析して結果について紹介する。