Park Dabin, Kim Minsu, Kim Jooheon
School of Chemical Engineering & Materials Science, Chung-Ang University, Seoul 06974, Korea.
Polymers (Basel). 2020 Dec 8;12(12):2932. doi: 10.3390/polym12122932.
Flexible AgSe NW/PEDOT:PSS thermoelectric composite films with different AgSe contents (10, 20, 30, 50, 70, and 80 wt.%) are fabricated. The AgSe nanowires are first fabricated with solution mixing. After that, AgSe NW/PEDOT:PSS composite film was fabricated using a simple drop-casting method. To evaluate the potential applications of the AgSe NW/PEDOT:PSS composite, their thermoelectric properties are analyzed according to their AgSe contents, and strategies for maximizing the thermoelectric power factor are discussed. The maximum room-temperature power factor of composite film (178.59 μW/m·K) is obtained with 80 wt.% AgSe nanowires. In addition, the composite film shows outstanding durability after 1000 repeat bending cycles. This work provides an important strategy for the fabrication of high-performance flexible thermoelectric composite films, which can be extended to other inorganic/organic composites and will certainly promote their development and thermoelectric applications.
制备了具有不同AgSe含量（10、20、30、50、70和80 wt.%）的柔性AgSe纳米线/聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸盐（PEDOT:PSS）热电复合薄膜。首先通过溶液混合制备AgSe纳米线。之后，采用简单的滴铸法制备AgSe纳米线/PEDOT:PSS复合薄膜。为了评估AgSe纳米线/PEDOT:PSS复合材料的潜在应用，根据其AgSe含量分析了它们的热电性能，并讨论了使热电功率因数最大化的策略。含80 wt.% AgSe纳米线的复合薄膜在室温下获得了最大的功率因数（178.59 μW/m·K）。此外，复合薄膜在1000次重复弯曲循环后仍表现出出色的耐久性。这项工作为制备高性能柔性热电复合薄膜提供了重要策略，该策略可扩展到其他无机/有机复合材料，并必将促进它们的发展和热电应用。
