Suraya Kazi, Pravallika Bandaru, Haoran Tang, Yulong Duan, Shangzhi Chen, Fei Huang, Magnus P Jonsson
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引用次数: 0
摘要
导电聚合物可以通过改变其氧化还原状态,在光学金属性(负实导系数)和介电性(正实导系数)之间进行动态切换。这使得具有等离子体共振的纳米天线可以可逆地打开/关闭,为动态元光学、反射显示器和智能窗户的应用开辟了道路。然而,之前有关导电聚合物等离子体的报道仅限于 p 型聚合物。在这里,我们展示了一种名为聚(苯并二呋喃二酮)(PBFDO)的高导电 n 型聚合物也能提供光学金属特性,并可用于制造动态光学纳米天线。这种聚合物的掺杂型在波长超过约 700 纳米时会变成金属,从而使这种材料制成的纳米磁盘出现等离子消光峰。这些峰值可以通过改变聚合物的掺杂水平,以电气或化学方式可逆地关闭或打开。这项研究将动态聚合物等离子体领域扩展到了 n 型材料,并拓宽了 PBFDO 的应用领域。
Conducting polymers can be dynamically switched between being optically metallic (negative real permittivity) and dielectric (positive real permittivity) by varying their redox state. This has enabled nanoantennas with plasmonic resonances that can be reversibly turned on/off, opening for applications in dynamic metaoptics, reflective displays, and smart windows. However, previous reports on conducting polymer plasmonics were limited to p-type polymers. Here, we show that a highly conducting n-type polymer, called poly(benzodifurandione) (PBFDO), can also provide optically metallic properties and be used to make dynamic optical nanoantennas. The doped version of the polymer becomes metallic at wavelengths above around 700 nm, leading to plasmonic extinction peaks for nanodisks made from the material. These peaks can be reversibly switched off and on electrically or chemically by varying the doping level of the polymer. The study extends the field of dynamic polymer plasmonics to n-type materials and broadens the application areas of PBFDO.
期刊介绍:
The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study:
Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability.
Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine.
Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices.
Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive.
Bioelectronics
Conductors
Detectors
Dielectrics
Displays
Ferroelectrics
Lasers
LEDs
Lighting
Liquid crystals
Memory
Metamaterials
Multiferroics
Photonics
Photovoltaics
Semiconductors
Sensors
Single molecule conductors
Spintronics
Superconductors
Thermoelectrics
Topological insulators
Transistors