Open AccessFlexibility and non-destructive conductivity measurements of Ag nanowire based transparent conductive films via terahertz time domain spectroscopy
Author(s) -
Gyujeong Hwang,
Soner Balci,
M. Zeki Güngördü,
Alex Maleski,
Joseph Waters,
Sunjong Lee,
Sung-Jin Choi,
Kyoungkook Kim,
Soo-Haeng Cho,
Seongsin M. Kim
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.004500
Subject(s) - materials science , polyethylene terephthalate , terahertz radiation , conductivity , polyimide , optoelectronics , electrode , electrical conductor , nanowire , spectroscopy , bend radius , drude model , terahertz spectroscopy and technology , optics , bending , composite material , layer (electronics) , chemistry , physics , quantum mechanics
Highly stable and flexible transparent electrodes are fabricated based on silver nanowires (AgNWs) on both polyethylene-terephthalate (PET) and polyimide (PI) substrates. Terahertz time domain spectroscopy (THz-TDS) was utilized to probe AgNW films while bended with a radius 5 mm to discover conductivity of bended films which was further analyzed through Drude-Smith model. AgNW films experience little degradation in conductivity (<3%) before, after, and during 1000 bending cycles. Highly stable AgNW flexible electrodes have broad applications in flexible optoelectronic and electronic devices. THz-TDS is an effective technique to investigate the electrical properties of the bended and flattened conducting films in a nondestructive manner.