[22p-12J-1~9] 13.3 Insulator technology

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[22p-12J-3] Method for detecting SiO₅ structure in potassium ion electret

〇(M1)Taiki Kirikoshi¹, Yoshiki Ohata¹, Masaki Araidai^1,2, Takuma Ishiguro³, Hiroyuki Mitsuya³, Hiroshi Toshiyoshi⁴, Yasushi Shibata⁵, Gen Hashiguchi⁵, Kenji Shiraishi^1,2 (1.Nagoya Univ., 2.IMaSS, Nagoya Univ., 3.Saginomiya Seisakusho INC, 4.IIS, University of Tokyo, 5.Shizuoka Univ.)

Keywords:

electret,energy harvesting

KiE is a material in which a SiO₅ structure appears by inserting K atoms into amorphous SiO₂ and removing K⁺ ions, and the SiO₅ structure becomes semi-permanently negatively charged. Our research group has confirmed the formation of the SiO₅ structure in KiE many times through theoretical calculations, but we have not been able to confirm the SiO₅ structure experimentally. Therefore, we investigated a method to experimentally confirm the SiO5 structure in KiE using first-principles calculations.