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Nanobinders advance screen-printed flexible thermoelectrics
Science ( IF 44.7 ) Pub Date : 2024-12-12 , DOI: 10.1126/science.ads5868 Wenyi Chen, Xiao-Lei Shi, Meng Li, Ting Liu, Yuanqing Mao, Qingyi Liu, Matthew Dargusch, Jin Zou, Gao Qing (Max) Lu, Zhi-Gang Chen
Science ( IF 44.7 ) Pub Date : 2024-12-12 , DOI: 10.1126/science.ads5868 Wenyi Chen, Xiao-Lei Shi, Meng Li, Ting Liu, Yuanqing Mao, Qingyi Liu, Matthew Dargusch, Jin Zou, Gao Qing (Max) Lu, Zhi-Gang Chen
Limited flexibility, complex manufacturing processes, high costs, and insufficient performance are major factors restricting the scalability and commercialization of flexible inorganic thermoelectrics for wearable electronics and other high-end cooling applications. We developed an innovative, cost-effective technology that integrates solvothermal, screen-printing, and sintering techniques to produce an inorganic flexible thermoelectric film. Our printable film, comprising Bi 2 Te 3 -based nanoplates as highly orientated grains and Te nanorods as “nanobinders,” shows excellent thermoelectric performance for printable films, good flexibility, large-scale manufacturability, and low cost. We constructed a flexible thermoelectric device assembled by printable n-type Bi 2 Te 3 -based and p-type Bi 0.4 Sb 1.6 Te 3 films, which achieved a normalized power density of >3 μW cm −2 K −2 , ranking among the highest in screen-printed devices. Moreover, this technology can be extended to other inorganic thermoelectric film systems, such as Ag 2 Se, showing broad applicability.
中文翻译:
纳米粘合剂推进了丝网印刷柔性热电技术
有限的灵活性、复杂的制造工艺、高成本和不足是限制柔性无机热电器件在可穿戴电子设备和其他高端冷却应用中的可扩展性和商业化的主要因素。我们开发了一种创新的、具有成本效益的技术,该技术集成了溶剂热、丝网印刷和烧结技术,以生产无机柔性热电薄膜。我们的可打印薄膜由基于 Bi 2 Te 3 的纳米板作为高度取向的颗粒和作为“纳米粘合剂”的 Te 纳米棒组成,在可打印薄膜中表现出优异的热电性能、良好的柔韧性、大规模可制造性和低成本。我们构建了一种柔性热电器件,由可印刷的 n 型 Bi 2 Te 3 基和 p 型 Bi 0.4 Sb 1.6 Te 3 薄膜组装而成,实现了 >3 μW cm -2 K -2 的归一化功率密度,在丝网印刷器件中名列前茅。此外,该技术可以扩展到其他无机热电薄膜系统,例如 Ag 2 Se,显示出广泛的适用性。
更新日期:2024-12-12
中文翻译:
纳米粘合剂推进了丝网印刷柔性热电技术
有限的灵活性、复杂的制造工艺、高成本和不足是限制柔性无机热电器件在可穿戴电子设备和其他高端冷却应用中的可扩展性和商业化的主要因素。我们开发了一种创新的、具有成本效益的技术,该技术集成了溶剂热、丝网印刷和烧结技术,以生产无机柔性热电薄膜。我们的可打印薄膜由基于 Bi 2 Te 3 的纳米板作为高度取向的颗粒和作为“纳米粘合剂”的 Te 纳米棒组成,在可打印薄膜中表现出优异的热电性能、良好的柔韧性、大规模可制造性和低成本。我们构建了一种柔性热电器件,由可印刷的 n 型 Bi 2 Te 3 基和 p 型 Bi 0.4 Sb 1.6 Te 3 薄膜组装而成,实现了 >3 μW cm -2 K -2 的归一化功率密度,在丝网印刷器件中名列前茅。此外,该技术可以扩展到其他无机热电薄膜系统,例如 Ag 2 Se,显示出广泛的适用性。