熱電材料和裝置已被廣被使用於能量轉換器，傳感器，和熱電冷卻的領域。陶瓷熱電材料也是眾所周知的環保材料。 La1-xSrxCuO2.5-δ 由於其氧缺陷鈣鈦礦結構導致其具有良好的金屬般的導電性，因此，它可以被考慮為一種的熱電材料。
本研究檢討了SrTiO3對La1-xSrxCuO2.5-δ 的燒結行為和熱電性能的影響。前軀體混合粉末是以固相法製備。混合粉末經800℃持溫2.5小時的煅燒後，形成單一相的La0.8Sr0.2CuO2.5-δ。燒結溫度和SrTiO3的添加量成為可變的參數。在O2氣氛下燒結所得塊材，其相對密度是隨著燒結溫度的增加而增加，亦隨SrTiO3添加量的增加而減少。SrTiO3抑制La0.8Sr0.2CuO2.5–δ 的晶粒生長。
就熱電性能而言， SrTiO3的添加降低了燒結塊材的導電性。未添加(0wt% )SrTiO3的塊材具有最佳的電傳導性質， 880秒/厘米。而Seebeck係數的值是隨SrTiO3的增加而增加； 添加5wt％SrTiO3的塊材具有最高的Seebeck係數，在350K時達到3550 μV/K。該5wt％SrTiO3的塊材顯示出最高的功率因子，9x104μW/mK2

Thermoelectric materials and devices have been widely used in the fields of energy conversion, sensors, and thermoelectric cooling. The ceramic thermoelectric materials are also well-known as environmentally friendly. La1-xSrxCuO2.5-δ shows a good metallic electrical conductivity owing to its oxygen-defect perovskite structure. Therefore, it can be considered as one kind of thermoelectric materials.
The effect of adding SrTiO3 on sintering behavior and thermoelectric properties of La1-xSrxCuO2.5-δ were investigated in this study. The precursor powders were prepared by solid state method. After calcination at 800oC for 2.5 hours, the powder shows a single phase of La0.8Sr0.2CuO2.5-δ. Sintering temperature and contents of SrTiO3 become variable parameters. After a sintering process at O2 atmosphere, the relative density of bulk increases with increasing sintering temperature. SrTiO3 inhibited the grain growth of La0.8Sr0.2CuO2.5-δ.
In terms of thermoelectric properties, adding the SrTiO3 decreased the the electrical conductivity of bulk. The highest value of electrical conductivity, 880 S/cm, was obtained by 0 wt% SrTiO3 sample. However the Seebeck coefficient value increased with increasing the contents of SrTiO3. The highest value of Seebeck coefficient was 3550 µV/K achieved by 5 wt% SrTiO3 sample at 350K. The 5 wt% SrTiO3 sample showed the highest power factor, is 9x104 µW/mK2

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