Electrical impedance properties of bulk carbon nanotube composites for chemical sensors and biosensors

Dae-Sup So; Hoon Huh; Gyeong Rak Choi; Hyungki Park; Inpil Kang

doi:10.1117/12.814473

5 January 2009 Electrical impedance properties of bulk carbon nanotube composites for chemical sensors and biosensors

Dae-Sup So, Hoon Huh, Gyeong Rak Choi, Hyungki Park, Inpil Kang

Proceedings Volume 7269, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems IV; 72690D (2009) https://doi.org/10.1117/12.814473
Event: SPIE Smart Materials, Nano- and Micro-Smart Systems, 2008, Melbourne, Australia

Abstract

Electrical impedance properties of bulk carbon nanotube (CNT) composite electrodes have been studied to develop chemical and biosensors. The CNTs embedded in composite electrodes were fabricated by means of traditional film casting and electrospun nanoweb. The morphology of the bulk CNT electrode was investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Under the various amounts of buffer solution, electrical impedance of the composite electrodes was measured by means of LCR meter. It is generally known that electrical impedance measurement provides rapid and simple sensing mechanism. In this study, we found out that CNT bulk composite electrodes showed good sensing properties for chemical and bio sensors.

Citation Download Citation

Dae-Sup So, Hoon Huh, Gyeong Rak Choi, Hyungki Park, and Inpil Kang "Electrical impedance properties of bulk carbon nanotube composites for chemical sensors and biosensors", Proc. SPIE 7269, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems IV, 72690D (5 January 2009); https://doi.org/10.1117/12.814473

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