Advanced SearchSearch Tips
pH Sensitive Graphene Field-Effect Transistor(FET)
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
pH Sensitive Graphene Field-Effect Transistor(FET)
Park, Woo Hwan; Song, Kwang Soup;
  PDF(new window)
Recently, the detection of pH with real-time and in vivo has been focal pointed in the environmental or medical fields. In this work, we developed the pH sensor using graphene sheet. Graphene has high biocompatibility. We fabricated flexible solution-gated field-effect transistors (SGFETs) on graphene sheet transferred on the polyethylene terephthalate (PET) substrate to detect pH in electrolyte solution. The gate length was and the gate width was 8 mm. We evaluated the current-voltage (I-V) transfer characteristics of graphene SGFETs in pH solution. The drain-source current () and the gate-source voltage () curves of graphene SGFETs were depended on pH value. The Dirac point of graphene SGFETs linearly shifted to the positive direction about 19.32 mV/pH depending on the pH value in electrolyte solution.
Dirac point;
 Cited by
J.M. Alexander, B. Jeff, A.B.D. Colin, and R.L. Christopher, "pH-Sensitive Holographic Sensors," Anal. Chem., Vol. 75, no. 17, pp. 4423-4431, 2003. crossref(new window)

K.S. Song, Y. Nakamura, Y. Sasaki, M. Degawa, J.H. Yang, H. Kawarada, "pH-sensitive diamond field-effect transistors (FETs) with directly aminated channel surface," Anal. Chim. Acta., Vol. 573-574, no. 12, pp. 3-8, 2006. crossref(new window)

L. Manjakkal, B. Synkiewicz, K. Zaraska, K. Cvejin, J. Kulawik, D. Szwagierczak, "Development and characterization of miniaturized LTCC pH sensors with RuO2 based sensing electrodes," Sens. & Actuat. B, Vol. 223, pp. 641-649, 2016. crossref(new window)

N. Uria, N. Abramova, A. Bratov, F. M. Pascual, E. Baldrich, "Miniaturized metal oxide pH sensors for bacteria detection," Talanta, Vol 147, pp. 364-369, 2016. crossref(new window)

Y. Qiao, T. Xu, Y. Zhang, C. Zhang, L. Shi, G. Zhang, S. Shuang, C. Dong, "Green synthesis of fluorescent copper nanoclusters for reversible pH-sensors," Sens. & Actuat. B, Vol. 220, pp. 1064-1069, 2015. crossref(new window)

J. Ma, C. Ding, J. Zhou, Y. Tian, "2D ratiometric fluorescent pH sensor for tracking of cells proliferation and metabolism," Biosen. & Bioele., Vol 70, pp. 202-208, 2015. crossref(new window)

이병훈, 황현준, 장경은, 김윤지, 김소영, 유원범, "그래핀 소자 기술," 대한전자공학회지 제42권, 제7호, 76-87쪽, 2015년 7월

K.S. Song "Detection of SNPs using electrical biased method on diamond FETs," IEIE, Vol. 52, 3, pp. 190-195, 2015.

I.Y. Sohn, D.J. Kim, J.H. Jung, O.J. Yoon, T.N. Thanh, T.T. Quang, N.E. Lee, "pH sensing characteristics and biosensing application of solution-gated reduced graphene oxide field-effect transistors," Biosen. & Bioele., Vol. 45 pp. 70-76, 2013. crossref(new window)

W. Yue, S. Jiang, S. Xu, Y. Ma, C. Bai, "Fabrication of graphene FETs combined with fluorescence and its double read-out system," Sens. & Actuat. B, Vol 214, pp. 204-210, 2015. crossref(new window)

S. Bae, H. Kim, Y. Lee, X.F. Xu, J.S. Park, Y. Zheng, B.H. Hong, "Roll-to-roll production of 30-inch graphene films for transparent electrodes," Nat. Nanotech., Vol. 5, no. 8, pp. 574-578, 2010. crossref(new window)

H.G. Oh, H.G. Nam, D.H. Kim, M.H. Kim, K.H. Jhee, K.S. Song, "Neuroblastoma cells grown on fluorine or oxygen treated graphenes sheets," Mate. Lett., Vol. 131, pp. 328-331, 2014. crossref(new window)