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Author:

Zhang, Manchen (Zhang, Manchen.) | Wang, Ruzhi (Wang, Ruzhi.) (Scholars:王如志) | Shen, Zhen (Shen, Zhen.) | Ji, Yuhang (Ji, Yuhang.)

Indexed by:

EI Scopus SCIE

Abstract:

The pH sensor of an extended gate field effect transistor (EGFET) with gallium nitride/silicon hybrid nanostructure is fabricated and analyzed. Si nanowires (NWs) are fabricated via the Ag-assisted electroless etching technique and are then covered by GaN NWs through plasma-enhanced chemical vapor deposition (PECVD). The GaN nanostructure is synthesized by introducing gallium oxide (Ga2O3) and nitrogen (N-2) for the growth of NWs. The GaN nanowires supply a larger surface area than that of the pristine Si NWs, where there is a better sensitivity for pH sensor. The GaN/Silicon hybrid sensors exhibit a sensitivity higher (50.4 mV/pH) than that of pristine Si NWs sensors (41.2 mV/pH). This GaN/Si hybrid pH sensor prepared by simple and low-cost method may be potentially applied for cheap biosensor devices.

Keyword:

GaN nanowires EGFET GaN/Si hybrids nanostructures pH sensor

Author Community:

  • [ 1 ] [Zhang, Manchen]Beijing Univ Technol, Coll Mat Sci & Engn, Pingleyuan 100, Beijing, Peoples R China
  • [ 2 ] [Wang, Ruzhi]Beijing Univ Technol, Coll Mat Sci & Engn, Pingleyuan 100, Beijing, Peoples R China
  • [ 3 ] [Shen, Zhen]Beijing Univ Technol, Coll Mat Sci & Engn, Pingleyuan 100, Beijing, Peoples R China
  • [ 4 ] [Ji, Yuhang]Beijing Univ Technol, Coll Mat Sci & Engn, Pingleyuan 100, Beijing, Peoples R China

Reprint Author's Address:

  • 王如志

    [Wang, Ruzhi]Beijing Univ Technol, Coll Mat Sci & Engn, Pingleyuan 100, Beijing, Peoples R China

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Source :

NANO

ISSN: 1793-2920

Year: 2017

Issue: 9

Volume: 12

1 . 2 0 0

JCR@2022

ESI Discipline: PHYSICS;

ESI HC Threshold:158

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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