[16a-K502-1~9] 2.1 Radiation physics, Material development and characteristic evaluation

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[16a-K502-9] Characteristics of Schottky-type CdTe detector with Ag electrode

〇Katsuyuki Takagi^1,2, Toshiyuki Takagi^2,3, Junichi Nishizawa¹, Hiroki Kase¹, Akifumi Koike², Toru Aoki^1,2,3, Hidenori Mimura^1,2 (1.Shizuoka Univ. R.I.E., 2.ANSeeN Inc., 3.Shizuoka. Univ. M.P.)

Keywords:

cadimium Telluride,semiconductor detector,fermi-level pinning

In Schottky-type CdTe detectors, studies using Cu electrodes have suggested long-term instability in the junction between the electrode and the CdTe bulk. In this study, we fabricated Schottky-type CdTe detectors using Ag electrodes instead of Cu electrodes and evaluated their characteristics. The fabricated detectors exhibited Fermi level pinning after electrical aging, resulting in reduced leakage current comparable to that of conventional Schottky-type detectors.