In this study, Ni0.79(Mn2.21-χCuχ)O4 (x=0~0.25) specimens were prepared by using a conventional mixed oxide method. All specimens were sintered in air at 1,℃ for 12 h and cooled at a rate of 2℃/min to 800℃, subsequently quenching to room temperature. We investigated the structural and electrical properties of Ni 0.79(Mn2,21-χCuχ)O4 specimens with variation of CuO amount for the application of NTC thermistors. As results of X-ray diffraction patterns, all specimens showed the formation of a complete solid solution with cubic spinel phase. The relationship between ln ρ and the reciprocal of absolute temperature(1/T) for the NTC thermistors was shown linearity, which exhibited the typical NTC thermistor properties. With increasing the amount of CuO, resistivity at room temperature, B-value, and temperature coefficient resistance decreased.
Review Article: Atomic layer deposition of doped ZnO films Zhengning Gao, Parag Banerjee Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films.2019;[Epub] CrossRef
Experimental Study on Fabrication of AZO Transparent Electrode for Organic Solar Cell Using Selective Low-Temperature Atomic Layer Deposition Ki-Cheol Kim, Gen-Soo Song, Hyung-Tae Kim, Kyung-Hoon Yoo, Jeong-Jin Kang, Jun-Young Hwang, Sang-Ho Lee, Kyung-Tae Kang, Heui-Seok Kang, Young-June Cho Transactions of the Korean Society of Mechanical Engineers B.2013; 37(6): 577. CrossRef
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