Ion-sensing properties of 1D vanadium pentoxide nanostructures

被引：24

作者：

Vieira, Nirton C. S. ^{[1
]}

Avansi, Waldir ^{[2
]}

Figueiredo, Alessandra ^{[1
]}

Ribeiro, Caue ^{[3
]}

Mastelaro, Valmor R. ^{[1
]}

Guimares, Francisco E. G. ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Fis & Ciencias Mat, Inst Fis Sao Carlos, BR-36913560 Sao Carlos, SP, Brazil

[2] Univ Estadual Paulista, Dept Quim Fis, Inst Quim Araraquara, BR-35514801 Sao Paulo, Brazil

[3] EMBRAPA, Empresa Brasileira Pesquisas Agr, BR-13560970 Sao Carlos, SP, Brazil

来源：

NANOSCALE RESEARCH LETTERS | 2012年 / 7卷

基金：

巴西圣保罗研究基金会;

关键词：

Vanadium pentoxide; Nanostructures; pH sensors; SEGFET; Hydrothermal synthesis; FIELD-EFFECT TRANSISTOR; PH SENSORS; TIN OXIDE; MEMBRANE; FILMS;

D O I：

10.1186/1556-276X-7-310

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The application of one-dimensional (1D) V2O5 center dot nH(2)O nanostructures as pH sensing material was evaluated. 1D V2O5 center dot nH(2)O nanostructures were obtained by a hydrothermal method with systematic control of morphology forming different nanostructures: nanoribbons, nanowires and nanorods. Deposited onto Au-covered substrates, 1D V2O5 center dot nH(2)O nanostructures were employed as gate material in pH sensors based on separative extended gate FET as an alternative to provide FET isolation from the chemical environment. 1D V2O5 center dot nH(2)O nanostructures showed pH sensitivity around the expected theoretical value. Due to high pH sensing properties, flexibility and low cost, further applications of 1D V2O5 center dot nH(2)O nanostructures comprise enzyme FET-based biosensors using immobilized enzymes.

引用

页数：5

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