Effect of Polyaniline additions on structural and gas sensing behaviour of metal oxides thin films

被引：0
|
作者：
Jumali, Mohammad Hafizuddin Hj. [1 ]
Izzuddin, Izura [1 ]
Ramli, Norhashimah [1 ]
Salleh, Muhamad Mat [2 ]
Yahaya, Muhammad [1 ]
机构：
[1] Univ Kebangsaan Malaysia, Sch Appl Phys, Fac Sci & Technol, Bangi 43600, Malaysia
[2] Univ Kebangsaan Malaysia, IMEN, Bangi 43600, Malaysia
来源：
SECOND INTERNATIONAL CONFERENCE ON SMART MATERIALS AND NANOTECHNOLOGY IN ENGINEERING | 2009年 / 7493卷
关键词：
Metal oxides thin films; Polyaniline; structural analysis; gas sensing behaviour; SENSITIVITY;
D O I：
10.1117/12.840182
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The structural and gas sensing behaviour of metal oxides namely TiO2 and ZnO thin films were investigated. In this paper, commercial Polyaniline (PANi) powder were added into two different metal oxides sol gel solutions with PANi : metal oxides weight ratios of 1wt.%, 2wt.% and 3wt.%. The thin films were fabricated using spin coating technique. Structural investigation using XRD presented that all films exhibited amorphous structure. Typical films surface morphology consists of agglomerated round shaped particles with the particles size varies between 57nm to 200nm. Addition of PANi formed network chains between the particles. Ethanol vapor detection test conducted at room temperature showed that both TiO2 and ZnO based films were capable to sense the vapor. The optimum ratio in sensing ethanol vapour for both PANi-TiO2 and PANi-ZnO films was 3:1. However, other issues such as reliability, selectability and repeatability remain as the major problems.
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页数：7
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