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المؤلفThomas, Deepu
المؤلفThomas, Ajith
المؤلفTom, Anju Elsa
المؤلفSadasivuni, Kishor Kumar
المؤلفPonnamma, Deepalekshmi
المؤلفGoutham, Solleti
المؤلفCabibihan, John-John
المؤلفVenkateswara Rao, Kalagadda
تاريخ الإتاحة2020-11-12T07:55:57Z
تاريخ النشر2017
اسم المنشورSynthetic Metals
المصدرScopus
الرقم المعياري الدولي للكتاب3796779
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.synthmet.2017.08.006
معرّف المصادر الموحدhttp://hdl.handle.net/10576/16974
الملخصZinc oxide (ZnO) nano-polycrystalline thin films has been prepared by cost-effective microwave assisted successive ionic layer adsorption and reaction (mSILAR) technique. ZnO/PANI prepared by in situ polymerization technique and thin films were fabricated using spin coating. X-ray Diffraction analysis confirms the presence of hexagonal wurtzite ZnO structure in the ZnO/PANI composite. The field emission scanning electron microscope revealed the porous nature of ZnO/PANI films with nanosized grains. We observed PANI intensively affected the structural and electrical properties of ZnO films. The examination of sensors was carried out in the liquefied petroleum gas (LPG) concentration range of 30 to 450 ppm. It was noticed that ZnO/PANI nanocomposite film possesses excellent LPG sensing properties at a room temperature compared with other volatile organic compounds, at an applied voltage of 1.5 V. The composite films also exhibited significant sensing response of ∼6.11 × 102 towards temperature and light with recovery and response time of ∼3.5 min and 2.16 min, respectively. Finally, the fabricated sensor showed good repeatability and sensitivity upon cyclic exposure to gas, light, and temperature. The ZnO/PANI nanocomposite film demonstrated overall sensing behavior in terms of sensor recovery time and response as well as repeatability
راعي المشروعThis publication was made possible by the support of an NPRP grant from the Qatar National Research Fund (NPRP 7- 673- 2- 251). The statements made herein are solely the responsibility of the authors.
اللغةen
الناشرElsevier Ltd
الموضوعElectrical properties
mSILAR
Photo and gas sensor
Polyaniline
Selectivity
Zinc oxide (ZnO)
العنوانHighly selective gas sensors from photo-activated ZnO/PANI thin films synthesized by mSILAR
النوعArticle
الصفحات123-130
رقم المجلد232
dc.accessType Abstract Only


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