In current research work we have able to enhanced the thermoelectric power generation ability of ZnO using two different methods simultaneously i. e alloying with Al atoms and post growth annealing method. ZnAlO alloy having different Al concentration (1, 1.5 and 2%) was converted into pallets after mixing Al and zinc oxide powders using hydraulic press having 13 tons pressure. The prepared pellets were subjected to high temperature annealing ranging from 700^-900^oC with step of 50 °C for each doping concentration. The crystal structure of all un-annealed and annealed samples was verified by XRD and Raman spectroscopy measurements. Seebeck data suggested that ZnAlO sample with 1% Al concentration and annealed at 700 °C has a maximum value of Seebeck coefficient 481 μV/^°C and this value was enhanced to 1017 μV/^°C as the measurement temperature increase from 25 °C to 100 °C. The electrical conductivity measured using Hall Effect showed an increasing trend with an increase in doping concentration as well as with post annealing temperature. The observed behavior of Seebeck coefficient and electrical conductivity with Al atoms concentration and annealing temperature suggested the enhancement of carrier mobility. The optimized values of Al concentration (1%) and annealing temperature (700 °C) are due to the fact that carrier scattering phenomena changes from lattice scattering to impurity scattering.

在当前的研究工作中，我们能够同时使用两种不同的方法来增强ZnO的热电发电能力。与铝原子合金化和后生长退火方法。使用具有13吨压力的液压机将Al和氧化锌粉末混合后，将具有不同Al浓度（1、1.5和2％）的ZnAlO合金转变为托盘。将制备的粒料进行高温退火从700 ^- 900 ^ö下用每个掺杂浓度的50℃步骤。所有未退火和退火样品的晶体结构都通过XRD和拉曼光谱测量得到了验证。Seebeck数据表明，Al浓度为1％且在700°C退火的ZnAlO样品的Seebeck系数最大值为481μV/ ^°C和该值提高到1017μV/ ^° C作为从25℃至100的测定的温度上升℃。使用霍尔效应测量的电导率显示出随着掺杂浓度的增加以及后退火温度的增加而增加的趋势。观察到的塞贝克系数和电导率随Al原子浓度和退火温度的变化表明载流子迁移率的提高。Al浓度（1％）和退火温度（700°C）的最佳值是由于载流子散射现象从晶格散射变为杂质散射这一事实所致。