2018
DOI: 10.1109/lpt.2018.2862148
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Numerical and Experimental Time-Domain Characterization of Terahertz Conducting Polymers

Abstract: A comprehensive framework for the theoretical and experimental investigation of thin conducting films for terahertz applications is presented. The electromagnetic properties of conducting polymers spin-coated on low-loss dielectric substrates are characterized by means of terahertz time-domain spectroscopy and interpreted through the Drude-Smith model. The analysis is complemented by an advanced finite-difference time-domain algorithm, which rigorously deals both with the dispersive nature of the involved mate… Show more

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Cited by 9 publications
(3 citation statements)
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“…Hence, fundamental limitations on the achievable transparency of TCE are much stricter at THz than in the NIR/VIS spectrum. That said, the main solutions for THz-TCE films proposed thus far are graphene [18,67] and transparent conducting polymers, mostly PEDOT:PSS [63,73]. They can be applied on both rigid and flexible substrates without compromising their performance, which makes them suitable for applications such as flexible electronics or sensors [11,74].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Hence, fundamental limitations on the achievable transparency of TCE are much stricter at THz than in the NIR/VIS spectrum. That said, the main solutions for THz-TCE films proposed thus far are graphene [18,67] and transparent conducting polymers, mostly PEDOT:PSS [63,73]. They can be applied on both rigid and flexible substrates without compromising their performance, which makes them suitable for applications such as flexible electronics or sensors [11,74].…”
Section: Discussionmentioning
confidence: 99%
“…In such cases, extensions of Drude theory have been widely employed, such as generalized Drude functions [61] or the so-called Drude-Smith (DS) model [44]. The latter has been demonstrated as an efficient phenomenological model for the description of thin conducting films [62,63], including the case of graphene [44,60,64].…”
Section: Terahertz Time-domain Spectroscopymentioning
confidence: 99%
“…In the THz region, the dielectric properties of the ITO can be described by Drude model [23,25], which was developed for the description of optical properties of the metal-like materials with high conductivity [31]. The relative dielectric function εr (ω) of ITO can be written as follows:…”
Section: Theoretical Modelmentioning
confidence: 99%