Terahertz Time-Domain Spectroscopy and Near-Field Microscopy of Transparent Silver Nanowire Networks

TitleTerahertz Time-Domain Spectroscopy and Near-Field Microscopy of Transparent Silver Nanowire Networks
Publication TypeJournal Article
Year of Publication2020
AuthorsN. van Hoof, M. Parente, A. Baldi, G J. Rivas
JournalAdvanced Optical Materials
Volume8
Issue3
Pagination1900790
Date Published02/2020
Abstract

Transparent conductive layers are key components of optoelectronic devices. Here, a polyol method is used to synthesize large quantities of monodisperse silver nanowires (AgNWs) and these are used to fabricate transparent conducting networks over large areas. The optical extinction and terahertz (THz) conductance of these networks are simultaneously investigated, using optical and THz spectroscopy, and THz near‐field microscopy. The combination of optical and THz measurements allows the identification of transparent regions with high conductance. The THz near‐field measurements reveal local variations in the THz transmission and conductance that are averaged in far‐field measurements. These results demonstrate that THz near‐field microscopy is a powerful tool for the quantitative investigation of new conductive transparent electrodes.

DOI10.1002/adom.201900790
Division

MaSF

Department

NEA

PID

7006b14c38ee23a654059a95cbd7642a

Alternate TitleAdv. Opt. Mater.

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