pp. 231-236
S&M1173 Research Paper of Special Issue https://doi.org/10.18494/SAM.2016.1283 Published: March 30, 2016 Effects of Sintering Temperature on the Response of CuFeTe2 Ceramics to Oxygen Gas [PDF] Masatoshi Kozaki, Yuta Tokunaga, Yezhi Huang, Hisao Kuriyaki, and Kiyoshi Toko (Received November 19, 2015; Accepted December 25, 2015) Keywords: oxygen gas sensor, intercalation, layered material
A new oxygen sensor based on the resistance change caused by oxygen intercalation in the layered compound CuFeTe2 (CFT) was developed. When intercalation occurs, oxygen molecules penetrate into the CFT interlayer, stretching the van der Waals gap and increasing the c-axis resistance. In this study, we prepared ceramic samples from a single crystal using different sintering temperatures. Results show that the sample sintered at 100 ℃ showed the highest oxygen gas response. Moreover we carried out the surface observation of the cross section of each CFT ceramic sample and found that the porosity of the sample increased with decreasing sintering temperature.
Corresponding author: Masatoshi KozakiCite this article Masatoshi Kozaki, Yuta Tokunaga, Yezhi Huang, Hisao Kuriyaki, and Kiyoshi Toko, Effects of Sintering Temperature on the Response of CuFeTe2 Ceramics to Oxygen Gas, Sens. Mater., Vol. 28, No. 3, 2016, p. 231-236. |