Long-term stable ion sensitive field effect transistor sensors based on microfluidics induced tunable graphene films

B. Zhang; T. Cui

doi:10.31438/trf.hh2012.2

Long-term stable ion sensitive field effect transistor sensors based on microfluidics induced tunable graphene films

B. Zhang, T. Cui

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The ion sensitive field effect transistor (ISFET) sensor based on microfluidics induced films is reported in this paper. The graphene film demonstrates controllably tunable thickness different from the conventional graphene composites, and the sensor has a long-term stability in chemical detection. Using capillarity to introduce a graphene suspension solution to a microfluidic system, the graphene film patterns were confined and formed in microchannels. SEM, AFM and Raman spectroscopy were used to analyze the graphene films, demonstrating the tunable thickness of the graphene films in the microchannels. Ambipolar characteristics of the graphene ISFET were also presented. The long-term stability of the ISFET was investigated, and compared with graphene/polymer composites under the same patterning and measurement conditions.

Original language	English (US)
Title of host publication	2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012
Editors	Mehran Mehregany, David J. Monk
Publisher	Transducer Research Foundation
Pages	2-5
Number of pages	4
ISBN (Electronic)	9780964002494
DOIs	https://doi.org/10.31438/trf.hh2012.2
State	Published - 2012
Event	2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012 - Hilton Head, United States Duration: Jun 3 2012 → Jun 7 2012

Publication series

Name	Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop

Other

Other	2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012
Country/Territory	United States
City	Hilton Head
Period	6/3/12 → 6/7/12

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10.31438/trf.hh2012.2

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Zhang, B., & Cui, T. (2012). Long-term stable ion sensitive field effect transistor sensors based on microfluidics induced tunable graphene films. In M. Mehregany, & D. J. Monk (Eds.), 2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012 (pp. 2-5). (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop). Transducer Research Foundation. https://doi.org/10.31438/trf.hh2012.2

Long-term stable ion sensitive field effect transistor sensors based on microfluidics induced tunable graphene films. / Zhang, B.; Cui, T.
2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012. ed. / Mehran Mehregany; David J. Monk. Transducer Research Foundation, 2012. p. 2-5 (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zhang, B & Cui, T 2012, Long-term stable ion sensitive field effect transistor sensors based on microfluidics induced tunable graphene films. in M Mehregany & DJ Monk (eds), 2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012. Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop, Transducer Research Foundation, pp. 2-5, 2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012, Hilton Head, United States, 6/3/12. https://doi.org/10.31438/trf.hh2012.2

Zhang B, Cui T. Long-term stable ion sensitive field effect transistor sensors based on microfluidics induced tunable graphene films. In Mehregany M, Monk DJ, editors, 2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012. Transducer Research Foundation. 2012. p. 2-5. (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop). doi: 10.31438/trf.hh2012.2

Zhang, B. ; Cui, T. / Long-term stable ion sensitive field effect transistor sensors based on microfluidics induced tunable graphene films. 2012 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2012. editor / Mehran Mehregany ; David J. Monk. Transducer Research Foundation, 2012. pp. 2-5 (Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop).

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abstract = "The ion sensitive field effect transistor (ISFET) sensor based on microfluidics induced films is reported in this paper. The graphene film demonstrates controllably tunable thickness different from the conventional graphene composites, and the sensor has a long-term stability in chemical detection. Using capillarity to introduce a graphene suspension solution to a microfluidic system, the graphene film patterns were confined and formed in microchannels. SEM, AFM and Raman spectroscopy were used to analyze the graphene films, demonstrating the tunable thickness of the graphene films in the microchannels. Ambipolar characteristics of the graphene ISFET were also presented. The long-term stability of the ISFET was investigated, and compared with graphene/polymer composites under the same patterning and measurement conditions.",

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AB - The ion sensitive field effect transistor (ISFET) sensor based on microfluidics induced films is reported in this paper. The graphene film demonstrates controllably tunable thickness different from the conventional graphene composites, and the sensor has a long-term stability in chemical detection. Using capillarity to introduce a graphene suspension solution to a microfluidic system, the graphene film patterns were confined and formed in microchannels. SEM, AFM and Raman spectroscopy were used to analyze the graphene films, demonstrating the tunable thickness of the graphene films in the microchannels. Ambipolar characteristics of the graphene ISFET were also presented. The long-term stability of the ISFET was investigated, and compared with graphene/polymer composites under the same patterning and measurement conditions.

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Long-term stable ion sensitive field effect transistor sensors based on microfluidics induced tunable graphene films

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