Plasmon-enhanced nanosoldering of silver nanoparticles for high-conductive nanowires electrodes
用于高导电纳米线电极的银纳米粒子的等离子体增强纳米焊接
高導電性ナノワイヤ電極用の銀ナノ粒子のプラズモン増強ナノはんだ付け
고전도성 나노와이어 전극을 위한 은 나노입자의 플라즈몬 강화 나노솔더링
Nanosoldadura mejorada con plasmón de nanopartículas de plata para electrodos de nanocables de alta conductividad
Nanosoudure assistée par plasmon de nanoparticules d'argent pour des électrodes à nanofils hautement conducteurs
Плазмонно-усиленная нанопайка наночастиц серебра для электродов из высокопроводящих нанопроволок
¹ Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 511443, China
中国 广州 暨南大学光子技术研究院 广东省光纤传感与通信技术重点实验室
² Laboratory of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
中国 北京 中国科学院理化技术研究所 有机纳米光子学实验室 中国科学院仿生材料与界面科学重点实验室
³ School of Future Technologies, University of Chinese Academy of Sciences, Yanqihu Campus, Beijing 101407, China
中国 北京 中国科学院大学 雁栖湖校区 未来技术学院
The silver nanowires (Ag NWs) electrodes, which consist of incompact Ag nanoparticles (NPs) formed by multi-photon photoreduction, usually have poor conductivities. An effective strategy for enhancing conductivity of the Ag NWs electrodes is plasmon-enhanced nanosoldering (PLNS) by laser irradiation. Here, plasmon-enhanced photothermal effect is used to locally solder Ag NPs and then aggregates of these NPs grow into large irregular particles in PLNS process.
Finite element method (FEM) simulations indicate that the soldering process is triggered by localized surface plasmon-induced electric field enhancement at “hot-spots”. The effectiveness of PLNS for enhancing conductivity depends on laser power density and irradiation time. By optimizing the conditions of PLNS, the electrical conductivity of Ag NWs is significantly enhanced and the conductivity σs is increased to 2.45×107 S/m, which is about 39% of the bulk Ag. This PLNS of Ag NWs provides an efficient and cost-effective technique to rapidly produce large-area metal nanowire electrodes and capacitors with high conductivity, excellent uniformity, and good flexibility.
