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.
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7 January 2013
Research Article|
January 04 2013
Terahertz time-domain measurement of non-Drude conductivity in silver nanowire thin films for transparent electrode applications
Jaeseok Kim;
Jaeseok Kim
1
School of Electrical and Electronic Engineering, Yonsei University
, Seoul 120-749, South Korea
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Inhee Maeng;
Inhee Maeng
1
School of Electrical and Electronic Engineering, Yonsei University
, Seoul 120-749, South Korea
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Jongwook Jung;
Jongwook Jung
2
Department of Chemistry, Korea Advanced Institute of Science and Technology
, Daejeon 305-701, South Korea
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Hyunjoon Song;
Hyunjoon Song
2
Department of Chemistry, Korea Advanced Institute of Science and Technology
, Daejeon 305-701, South Korea
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Joo-Hiuk Son;
Joo-Hiuk Son
3
Department of Physics, University of Seoul
, Seoul 130-743, South Korea
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Kilsuk Kim;
Kilsuk Kim
4
Material R&D Department, LG Display Co., Ltd.
, 1007, Paju-si, Gyeonggi-do 413-811, South Korea
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Jaeik Lee;
Jaeik Lee
4
Material R&D Department, LG Display Co., Ltd.
, 1007, Paju-si, Gyeonggi-do 413-811, South Korea
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Chul-Hong Kim;
Chul-Hong Kim
4
Material R&D Department, LG Display Co., Ltd.
, 1007, Paju-si, Gyeonggi-do 413-811, South Korea
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Geesung Chae;
Geesung Chae
4
Material R&D Department, LG Display Co., Ltd.
, 1007, Paju-si, Gyeonggi-do 413-811, South Korea
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Myungchul Jun;
Myungchul Jun
4
Material R&D Department, LG Display Co., Ltd.
, 1007, Paju-si, Gyeonggi-do 413-811, South Korea
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YongKee Hwang;
YongKee Hwang
4
Material R&D Department, LG Display Co., Ltd.
, 1007, Paju-si, Gyeonggi-do 413-811, South Korea
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Su Jeong Lee;
Su Jeong Lee
5
Department of Materials Science and Engineering, Yonsei University
, Seoul 120-749, South Korea
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Jae-Min Myoung;
Jae-Min Myoung
5
Department of Materials Science and Engineering, Yonsei University
, Seoul 120-749, South Korea
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Hyunyong Choi
Hyunyong Choi
a)
1
School of Electrical and Electronic Engineering, Yonsei University
, Seoul 120-749, South Korea
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a)
Electronic mail: [email protected].
Appl. Phys. Lett. 102, 011109 (2013)
Article history
Received:
May 02 2012
Accepted:
December 10 2012
Citation
Jaeseok Kim, Inhee Maeng, Jongwook Jung, Hyunjoon Song, Joo-Hiuk Son, Kilsuk Kim, Jaeik Lee, Chul-Hong Kim, Geesung Chae, Myungchul Jun, YongKee Hwang, Su Jeong Lee, Jae-Min Myoung, Hyunyong Choi; Terahertz time-domain measurement of non-Drude conductivity in silver nanowire thin films for transparent electrode applications. Appl. Phys. Lett. 7 January 2013; 102 (1): 011109. https://doi.org/10.1063/1.4773179
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