https://scholars.lib.ntu.edu.tw/handle/123456789/580686
標題: | Surface Plasmon Resonance-Induced Diffusion-Limited Aggregation in the Formation of Ag/AgOxNanonetworks as Broad-Spectrum Transparent Conductors | 作者: | Hsu Y.-C Ni C.-C Su Y.-C Wu P.-H Chen J.-W Yang S Kuo Y Kiang Y.-W CHIH-CHUNG YANG YEAN-WOEI KIANG |
關鍵字: | Diffusion; Electrostatics; Flexible displays; Infrared devices; Moisture; Plasmons; Sheet resistance; Silver nanoparticles; Surface plasmon resonance; Surface waters; Diffusion limited aggregation; Electrostatic induction; Elevated temperature; Flexible optoelectronics; Post thermal treatment; Transparent conductive; Transparent conductors; Ultraviolet light emitting diodes; Agglomeration | 公開日期: | 2020 | 卷: | 3 | 期: | 11 | 起(迄)頁: | 11399-11407 | 來源出版物: | ACS Applied Nano Materials | 摘要: | Based on the generation and transportation of hot electrons and the diffusion-limited aggregation of Ag+ ions induced by the surface plasmon resonance of surface Ag nanoparticles (NPs) with ambient moisture, we develop a new mechanism for fabricating a surface Ag nanonetwork (NNW) structure on a slightly conductive template through Ag NP reorganization and AgOx formation. Such an extended NNW structure consists of distributed Ag NPs covered and connected by AgOx to form a highly transparent conductive network. Its sheet resistance is as low as ?140 ω/square while its transmittance lies between 80 and 90%. The process of diffusion-limited aggregation is regulated by electrostatic induction between diffuse Ag+ ions in a thin surface water layer condensed from moisture and the sharp tips of an NNW structure during its formation. Oxygen atoms can be dissociated from AgOx when a post-thermal treatment at a temperature higher than 412 °C is applied, leaving behind an Ag thin layer, which still connects the remaining Ag NPs to form a different conductive network of ?240 ω/square in sheet resistance. Such an NNW structure can stand an elevated temperature up to ?400 °C and is thermally stable. It can extend the transparent spectrum into ultraviolet and near-infrared ranges and can be applied to touch-panel displays, ultraviolet light-emitting diodes, and flexible optoelectronics devices. ? 2020 American Chemical Society. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096877483&doi=10.1021%2facsanm.0c02480&partnerID=40&md5=a25b3ffd6e57828782b18af7967bf7e2 https://scholars.lib.ntu.edu.tw/handle/123456789/580686 |
ISSN: | 25740970 | DOI: | 10.1021/acsanm.0c02480 |
顯示於: | 電機工程學系 |
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