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Polymorphic Interface engineering for high-performance Ag2Se-based flexible thermoelectric device

delete2025-06-30
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PRE
AI
W
Wenqian Lv
W
Wenxin Tang
P
Penglu Yu
J
Javeria Kainat
周智芳 封面图
周智芳 (Zhifang Zhou)
Jinle Lan 封面图
Jinle Lan (Jinle Lan)
杨小平 封面图
杨小平 (Xiaoping Yang)
Y
Yuan‐Hua Lin
DOI:10.1016/j.jcis.2025.138307delete
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摘要

摘要

En 中文
柔性热电材料对于各种应用具有重要意义,特别是在便携式设备中作为发电机或主动冷却器。Ag2Se是一种具有高载流子迁移率和低晶格热导率的 promising 近室温热电材料。然而,其高载流子浓度和有限的柔性限制了其进一步应用。在此,我们提出了一种在Ag-Ag2Se-石墨烯(0D-1D-2D)三元复合材料中进行多晶型界面工程的策略。Ag纳米颗粒-Ag2Se纳米线的共存在调节了高载流子浓度,而Ag2Se纳米线-石墨烯界面进一步增强了热电性能和柔性。最终,在0.25 wt%石墨烯-Ag2.25Se复合薄膜中实现了良好的柔性,并获得了改进的功率因子1643 μW m⁻¹ K⁻²。此外,由这些薄膜组装的柔性3腿热电发电机在50 K温度梯度下可输出最大约1.5 μW的功率。这项工作提出了一种基于无机/碳纳米材料构建高性能柔性热电复合薄膜多晶型界面的有效策略。

期刊

Journal of Colloid and Interface Science 封面图
Journal of Colloid and Interface Science
IF:
9.7
论文数:
3.7W
被引数:
14.7W

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