We report on the high temperature Seebeck coefficient, conduction mechanism and room temperature work function of LiMn 1.5 Ni 0.5 O 4 thin film prepared using the radio frequency sputtering technique. Cubic spinel LiMn 1.5 Ni 0.5 O 4 thin film exhibits a room temperature average work function value of 4.94 eV. DC electrical conductivity exhibits a small-polaron hopping mechanism with the activation energy of 0.47 eV. The polaron radius, inverse localization length and the Debye temperature values of LiMn 1.5 Ni 0.5 O 4 thin films are predicted using the variable range hopping model and Raman studies. The Seebeck coefficient and the power factor values for the LiMn 1.5 Ni 0.5 O 4 thin film is seen to vary from −1000 to −600 μ V K −1 and 0.09 to 0.5 μ W mK −2 , respectively, in the temperature range of 420 to 560 K. Electrical transport stu...

中文翻译：

---

LiMn 1.5 Ni 0.5 O 4薄膜的高温塞贝克系数，小极化子传导和功函数

我们报告了使用射频溅射技术制备的LiMn 1.5 Ni 0.5 O 4薄膜的高温塞贝克系数，导电机理和室温功函数。立方尖晶石LiMn 1.5 Ni 0.5 O 4薄膜的室温平均功函数值为4.94 eV。直流电导率表现出小极化子跳跃机制，其活化能为0.47 eV。利用变程跳变模型和拉曼研究预测了LiMn 1.5 Ni 0.5 O 4薄膜的极化子半径，逆局部长度和德拜温度值。在420的温度范围内，LiMn 1.5 Ni 0.5 O 4薄膜的塞贝克系数和功率因数值分别在-1000至-600μVK -1和0.09至0.5μW mK -2之间变化。到560K。