Comparison of Glucose Sensitivity of Nano and Macro Porous Silicon

被引：12
作者：
Sarkar, Tanusree [1 ]
Basu, Deeparati [2 ]
Mukherjee, Nandini [3 ]
Das, Jayoti [2 ]
机构：
[1] Jadavpur Univ, Sch Mobile Comp & Commun, Kolkata 700032, India
[2] Jadavpur Univ, Dept Phys, Kolkata 700032, India
[3] Jadavpur Univ, Dept Comp Sci & Engn, Kolkata 700032, India
来源：
MATERIALS TODAY-PROCEEDINGS | 2018年 / 5卷 / 03期
关键词：
Nano Porous Silicon; Macro Porous Silicon; Glucose Sensors; FABRICATION;
D O I：
10.1016/j.matpr.2017.10.169
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nano and macro porous silicon (PS) layers were grown on p-type silicon wafers by electrochemical etching process. Surface functionalization using glucose oxidase (GOX) was done for selective glucose sensing. I-V characteristics of both the PS layers at different glucose concentrations show rectifying nature. It is observed that the current value decreases with increasing glucose concentration at a particular applied voltage for both the PS layers. Nano PS layer shows better sensitivity towards higher glucose concentration, whereas, macro porous layer is more sensitive towards lower glucose concentration. Finally, a sensing mechanism has been proposed. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：9798 / 9803
页数：6
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