Browsing by Author "Juan, Pi-Chun"

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Ionic pH and glucose sensors fabricated using hydrothermal ZnO nanostructures
(2016-01)
Wang, Jyh-Liang
;
Yang, Po-Yu
;
Hsieh, Tsang-Yen
;
Juan, Pi-Chun
;
電子工程學系及電子研究所
Hydrothermally synthesized aluminum-doped ZnO (AZO) nanostructures have been adopted in extended-gate field-effect transistor (EGFET) sensors to demonstrate the sensitive and stable pH and glucose sensing characteristics of AZO-nanostructured EGFET sensors. The AZO-nanostructured EGFET sensors exhibited the following superior pH sensing characteristics: a high current sensitivity of 0.96 mu A(1/2)/pH, a high linearity of 0.9999, less distortion of output waveforms, a small hysteresis width of 4.83 mV, good long-term repeatability, and a wide sensing range from pHs 1 to 13. The glucose sensing characteristics of AZO-nanostructured biosensors exhibited the desired sensitivity of 60.5 mu A.cm(-2).mM(-1) and a linearity of 0.9996 up to 13.9 mM. The attractive characteristics of high sensitivity, high linearity, and repeatability of using ionic AZO-nanostructured EGFET sensors indicate their potential use as electrochemical and disposable biosensors. (C) 2016 The Japan Society of Applied Physics
Ionic pH and glucose sensors fabricated using hydrothermal ZnO nanostructures
(2016-01-01)
Wang, Jyh-Liang
;
Yang, Po-Yu
;
Hsieh, Tsang-Yen
;
Juan, Pi-Chun
;
電子工程學系及電子研究所
Hydrothermally synthesized aluminum-doped ZnO (AZO) nanostructures have been adopted in extended-gate field-effect transistor (EGFET) sensors to demonstrate the sensitive and stable pH and glucose sensing characteristics of AZO-nanostructured EGFET sensors. The AZO-nanostructured EGFET sensors exhibited the following superior pH sensing characteristics: a high current sensitivity of 0.96 mu A(1/2)/pH, a high linearity of 0.9999, less distortion of output waveforms, a small hysteresis width of 4.83 mV, good long-term repeatability, and a wide sensing range from pHs 1 to 13. The glucose sensing characteristics of AZO-nanostructured biosensors exhibited the desired sensitivity of 60.5 mu A.cm(-2).mM(-1) and a linearity of 0.9996 up to 13.9 mM. The attractive characteristics of high sensitivity, high linearity, and repeatability of using ionic AZO-nanostructured EGFET sensors indicate their potential use as electrochemical and disposable biosensors. (C) 2016 The Japan Society of Applied Physics