Terahertz time-domain measurement of non-Drude conductivity in silver nanowire thin films for transparent electrode applications

Jaeseok Kim, Inhee Maeng, Jongwook Jung, Hyunjoon Song, Joo Hiuk Son, Kilsuk Kim, Jaeik Lee, Chul Hong Kim, Geesung Chae, Myungchul Jun, Yongkee Hwang, Jeong Su Lee, Jae Min Myoung, Hyunyong Choi

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We have investigated the complex conductivity of silver nanowire thin films using terahertz time-domain spectroscopy. Maxwell-Garnett effective medium theory, which accounts for the effective complex conductivity of silver nanowires, is presented in detail theoretically and experimentally. The conductivity of nanowires exhibits a characteristic non-Drude response in which the applied terahertz field is polarized in the longitudinal nanowire direction. The non-Drude responses of the silver nanowires are explained by the Gans approximation and the Drude-Smith model, and both agree well with the experimental data. Our results provide a basis for further explorations of charge carrier dynamics in nanowire-based transparent electrode applications.

Original languageEnglish
Article number011109
JournalApplied Physics Letters
Volume102
Issue number1
DOIs
Publication statusPublished - 2013 Jan 7

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nanowires
silver
conductivity
electrodes
thin films
charge carriers
approximation
spectroscopy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Kim, Jaeseok ; Maeng, Inhee ; Jung, Jongwook ; Song, Hyunjoon ; Son, Joo Hiuk ; Kim, Kilsuk ; Lee, Jaeik ; Kim, Chul Hong ; Chae, Geesung ; Jun, Myungchul ; Hwang, Yongkee ; Lee, Jeong Su ; Myoung, Jae Min ; Choi, Hyunyong. / Terahertz time-domain measurement of non-Drude conductivity in silver nanowire thin films for transparent electrode applications. In: Applied Physics Letters. 2013 ; Vol. 102, No. 1.
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abstract = "We have investigated the complex conductivity of silver nanowire thin films using terahertz time-domain spectroscopy. Maxwell-Garnett effective medium theory, which accounts for the effective complex conductivity of silver nanowires, is presented in detail theoretically and experimentally. The conductivity of nanowires exhibits a characteristic non-Drude response in which the applied terahertz field is polarized in the longitudinal nanowire direction. The non-Drude responses of the silver nanowires are explained by the Gans approximation and the Drude-Smith model, and both agree well with the experimental data. Our results provide a basis for further explorations of charge carrier dynamics in nanowire-based transparent electrode applications.",
author = "Jaeseok Kim and Inhee Maeng and Jongwook Jung and Hyunjoon Song and Son, {Joo Hiuk} and Kilsuk Kim and Jaeik Lee and Kim, {Chul Hong} and Geesung Chae and Myungchul Jun and Yongkee Hwang and Lee, {Jeong Su} and Myoung, {Jae Min} and Hyunyong Choi",
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Kim, J, Maeng, I, Jung, J, Song, H, Son, JH, Kim, K, Lee, J, Kim, CH, Chae, G, Jun, M, Hwang, Y, Lee, JS, Myoung, JM & Choi, H 2013, 'Terahertz time-domain measurement of non-Drude conductivity in silver nanowire thin films for transparent electrode applications', Applied Physics Letters, vol. 102, no. 1, 011109. https://doi.org/10.1063/1.4773179

Terahertz time-domain measurement of non-Drude conductivity in silver nanowire thin films for transparent electrode applications. / Kim, Jaeseok; Maeng, Inhee; Jung, Jongwook; Song, Hyunjoon; Son, Joo Hiuk; Kim, Kilsuk; Lee, Jaeik; Kim, Chul Hong; Chae, Geesung; Jun, Myungchul; Hwang, Yongkee; Lee, Jeong Su; Myoung, Jae Min; Choi, Hyunyong.

In: Applied Physics Letters, Vol. 102, No. 1, 011109, 07.01.2013.

Research output: Contribution to journalArticle

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AU - Maeng, Inhee

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AU - Son, Joo Hiuk

AU - Kim, Kilsuk

AU - Lee, Jaeik

AU - Kim, Chul Hong

AU - Chae, Geesung

AU - Jun, Myungchul

AU - Hwang, Yongkee

AU - Lee, Jeong Su

AU - Myoung, Jae Min

AU - Choi, Hyunyong

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