Development of low resistance electrical contacts for thermoelectric devices based on n-type PbTe and p-type TAGS-85 ((AgSbTe2)0.15(GeTe)0.85)
Development of low resistance electrical contacts for thermoelectric devices based on n-type PbTe and p-type TAGS-85 ((AgSbTe2)0.15(GeTe)0.85)
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DOI：
10.1088/0022-3727/42/1/015502
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发表时间：
2009-01
期刊：
影响因子：
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通讯作者：
Ajay Singh;S. Bhattacharya;C. Thinaharan;D. K. Aswal;S. Gupta;J. Yakhmi;K. Bhanumurthy
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文献类型：
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作者：
Ajay Singh;S. Bhattacharya;C. Thinaharan;D. K. Aswal;S. Gupta;J. Yakhmi;K. Bhanumurthy
已在 n 型 PbTe 和 p 型 TAGS-85 ((AgSbTe2)0.15(GeTe)0.85) 热电偶上开发了扩散粘合极低电阻电触点（比接触电阻 <10 µΩ cm2）。具有两个串联 p-n 电偶（每个元件直径为 7.5 mm）的热电器件 (TED) 在热侧温度 Th = 500 °C 和温差 ΔT = 410 °C 时产生 1.2 W 的输出功率（工作电流为 ∼17 A）。发现设备的内阻随着热电偶数量的增加而线性增加。已开发的 TED 效率为 6%。该装置已在空气中连续运行8个月以上，输出功率没有任何下降。
Diffusion bonded very low resistance electrical contacts (specific contact resistance <10 µΩ cm2) have been developed on n-type PbTe and p-type TAGS-85 ((AgSbTe2)0.15(GeTe)0.85) thermoelements. Thermoelectric devices (TEDs) having two p–n couples in series (each of four elements having 7.5 mm diameter) generated an output power of 1.2 W (at an operating current of ∼17 A) at hot side temperature Th = 500 °C and a temperature difference ΔT = 410 °C. Internal resistance of the devices was found to increase linearly with an increase in the number of thermoelements. The efficiency of developed TEDs was found to be 6%. The devices have been operated continuously for more than 8 months in air without any degradation of the output power.