Abstract—The development of flexible thermoelectric generators (alternative energy sources) using screen-printing technology is a promising direction. To produce such generators, low-temperature thermoelectric materials of the Bi-Te-Se and Bi-Te-Sb systems are used. The properties of thick-film samples can be improved by introducing nanodispersed highly conductive copper-oxide powder CuO. However, the thermal stability of such materials has still not been studied. This work investigates the thermal properties and stability of thick films based on low-temperature thermoelectric-material of the systems Bi-Te-Se (n-type) and Bi-Te-Sb (p-type), doped by CuO. It is determined that thick-film samples containing 0.1% CuO additive have the best thermoelectric characteristics. It is shown that in the studied temperature range (from room temperature to 550 K) the samples are stable, there are no pronounced thermal effects and changes in the mass of the samples. In addition, repeated measurements do not lead to phase separation or other undesirable processes. It is established that thick films based on low-temperature thermoelectric materials of the Bi-Te-Se and Bi-Te-Sb systems, modified with copper-oxide additives, can be used for the manufacture of flexible thermoelectric devices.

摘要：利用丝网印刷技术开发柔性热电发电机（替代能源）是一个有前途的方向。为了生产这种发电机，使用了 Bi-Te-Se 和 Bi-Te-Sb 系统的低温热电材料。通过引入纳米分散的高导电氧化铜粉末 CuO 可以改善厚膜样品的性能。然而，此类材料的热稳定性尚未得到研究。这项工作研究了基于 Bi-Te-Se（ n型）和 Bi-Te-Sb（p型）体系的低温热电材料（掺杂 CuO）厚膜的热性能和稳定性。结果表明，含有0.1% CuO添加剂的厚膜样品具有最佳的热电特性。结果表明，在研究的温度范围内（从室温到550 K）样品是稳定的，没有明显的热效应和样品质量的变化。此外，重复测量不会导致相分离或其他不良过程。研究表明，基于 Bi-Te-Se 和 Bi-Te-Sb 系低温热电材料并用氧化铜添加剂改性的厚膜可用于制造柔性热电器件。