Quantum Composites with Charge‐Density‐Wave Fillers
Quantum Composites with Charge‐Density‐Wave Fillers
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具有电荷密度波填充物的量子复合材料
DOI：
10.1002/adma.202209708
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发表时间：
2023
影响因子：
29.4
通讯作者：
Balandin, Alexander A.
中科院分区：
文献类型：
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作者：
Barani, Zahra;Geremew, Tekwam;Stokey, Megan;Sesing, Nicholas;Taheri, Maedeh;Hilfiker, Matthew J.;Kargar, Fariborz;Schubert, Mathias;Salguero, Tina T.;Balandin, Alexander A.
展示了一类独特的先进材料-基于聚合物的量子复合材料，该聚合物具有由揭示多个电荷密度波量子凝聚相的货车德瓦尔斯量子材料组成的填料。表现出量子现象的材料通常是晶体，纯的，并且几乎没有缺陷，因为无序破坏了电子和声子的相干性，导致量子态的崩溃。本工作成功地保留了多个复合材料加工步骤后填料颗粒的宏观电荷密度波相。所制备的复合材料甚至在室温以上也显示出强烈的电荷密度波现象。介电常数经历了两个数量级以上的增强，同时材料保持其电绝缘性能，为储能和电子领域的高级应用开辟了一个场所。结果提出了一个概念上不同的方法工程材料的性能，扩展应用领域的货车范德华材料。
A unique class of advanced materials—quantum composites based on polymers with fillers composed of a van der Waals quantum material that reveals multiple charge‐density‐wave quantum condensate phases—is demonstrated. Materials that exhibit quantum phenomena are typically crystalline, pure, and have few defects because disorder destroys the coherence of the electrons and phonons, leading to collapse of the quantum states. The macroscopic charge‐density‐wave phases of filler particles after multiple composite processing steps are successfully preserved in this work. The prepared composites display strong charge‐density‐wave phenomena even above room temperature. The dielectric constant experiences more than two orders of magnitude enhancement while the material maintains its electrically insulating properties, opening a venue for advanced applications in energy storage and electronics. The results present a conceptually different approach for engineering the properties of materials, extending the application domain for van der Waals materials.