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Preparation of high-performance bismuthene thermoelectric composites doped with graphene using UV-curing 3D printing technology
Polymer Composites ( IF 4.8 ) Pub Date : 2024-03-18 , DOI: 10.1002/pc.28332 Qingshi Meng 1 , Yuchen Yang 1 , Sensen Han 2, 3 , Fanze Meng 1 , Tianqing Liu 4
Polymer Composites ( IF 4.8 ) Pub Date : 2024-03-18 , DOI: 10.1002/pc.28332 Qingshi Meng 1 , Yuchen Yang 1 , Sensen Han 2, 3 , Fanze Meng 1 , Tianqing Liu 4
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Thermoelectric materials are of tremendous interest due to their capacity to convert waste heat into useful electrical energy. Bismuthene nanosheets (BiNS) have recently emerged as a promising material for thermoelectric applications because of their unique two-dimensional structure and low thermal conductivity. However, the development of efficient and scalable methods for preparing BiNS-based thermoelectric composites with improved performance remains a challenge. In this study, we reported a novel approach to preparing a thin film BiNS-based thermoelectric composite with UV-curing 3D printing technology. The composite was prepared using BiNS as the filler and a UV-sensitive resin as the matrix, which contained 5 vol% graphene as the third phase to enhance the thermoelectric performance of the composite. The results showed that the prepared composite exhibited stable thermoelectric performance, with a maximum power factor of 311.79 ± 13.90 μW/mK2 when the volume fraction of BiNS reached 95 vol%. The electrical conductivity of the composite improved significantly as the volume fraction of BiNS increased from 75 to 95 vol%. The Seebeck coefficient remained essentially unchanged in the range of 70.1–70.7 μV/K. These findings demonstrate the potential of BiNS-based thermoelectric composites prepared by UV-curing 3D printing technology for practical applications in energy harvesting and cooling devices.
中文翻译：
紫外固化3D打印技术制备石墨烯掺杂高性能铋烯热电复合材料
热电材料因其将废热转化为有用电能的能力而受到极大关注。铋烯纳米片（BiNS）由于其独特的二维结构和低热导率，最近成为热电应用中有前途的材料。然而，开发高效且可扩展的方法来制备具有改进性能的 BiNS 基热电复合材料仍然是一个挑战。在这项研究中，我们报道了一种利用紫外固化3D打印技术制备薄膜BiNS基热电复合材料的新方法。该复合材料以 BiNS 为填料、紫外敏感树脂为基体制备，其中含有 5 vol% 石墨烯作为第三相，以增强复合材料的热电性能。结果表明，所制备的复合材料表现出稳定的热电性能，当BiNS体积分数达到95 vol%时，最大功率因数为311.79±13.90 μW/mK 2 。随着 BiNS 的体积分数从 75 vol% 增加到 95 vol%，复合材料的电导率显着提高。塞贝克系数在 70.1–70.7 μV/K 范围内基本保持不变。这些发现证明了通过 UV 固化 3D 打印技术制备的 BiNS 基热电复合材料在能量收集和冷却设备中实际应用的潜力。
更新日期：2024-03-18
中文翻译：
紫外固化3D打印技术制备石墨烯掺杂高性能铋烯热电复合材料
热电材料因其将废热转化为有用电能的能力而受到极大关注。铋烯纳米片（BiNS）由于其独特的二维结构和低热导率，最近成为热电应用中有前途的材料。然而，开发高效且可扩展的方法来制备具有改进性能的 BiNS 基热电复合材料仍然是一个挑战。在这项研究中，我们报道了一种利用紫外固化3D打印技术制备薄膜BiNS基热电复合材料的新方法。该复合材料以 BiNS 为填料、紫外敏感树脂为基体制备，其中含有 5 vol% 石墨烯作为第三相，以增强复合材料的热电性能。结果表明，所制备的复合材料表现出稳定的热电性能，当BiNS体积分数达到95 vol%时，最大功率因数为311.79±13.90 μW/mK 2 。随着 BiNS 的体积分数从 75 vol% 增加到 95 vol%，复合材料的电导率显着提高。塞贝克系数在 70.1–70.7 μV/K 范围内基本保持不变。这些发现证明了通过 UV 固化 3D 打印技术制备的 BiNS 基热电复合材料在能量收集和冷却设备中实际应用的潜力。
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