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Materials Today: Proceedings 5 (2018) 9817–9825 www.materialstoday.com/proceedings
2214-7853 © 2017 Elsevier Ltd. All rights reserved.
Selection and/or Peer-review under responsibility of International Conference on Functional Nano-Materials, 2016.
IC-FNM 2016
Development of Fullerene Modified Metal Oxide Thick Films for
Moisture Sensing Application
Debdulal Saha* and Sagnik Das
Sensor and Actuator Division, CSIR-Central Glass & Ceramic Research Institute,
196, Raja S.C. Mullick Road, Jadavpur, Kolkata-700 032, India.
Abstract
Trace moisture sensing capability of fullerene (C
60
) modified nanoporous -alumina (Al
2
O
3
) thick films has been presented here.
Fullerene was added to create nano pore in aluminum secondary butoxide for preparation of gel tape cast thick films. One of the
major advantages of using fullerene is to develop oriented nano pores (2-12 nm) throughout the ceramic thick films. The green
thick films were crack free which was cast by gel tape casting process. The porosity and surface area were studied using field
effect scanning electron microscope, atomic force microscope and Brunauer–Emmett–Teller. Gamma phase of alumina was also
examined by X-ray diffraction analysis. The green thick films were sintered at 900
°
C to obtain nanopore distribution through the
surface of the thick films. Electrical characterization such as sensitivity, response, recovery and hysteresis were performed. There
is no literature report on the detection of trace moisture sensor by fullerene assisted alumina sol gel tape cast process. This article
explains the development of moisture sensor which can detect low range moisture (1-25 ppm) in different industrial application
like gas industry, dielectric oil and drying of different food processing industry etc.
© 2017 Elsevier Ltd. All rights reserved.
Selection and/or Peer-review under responsibility of International Conference on Functional Nano-Materials, 2016.
Keywords: Fullerene; Sol-gel; Moisture sensor; -alumina thick film; Nano pore; Dielectric layer.
1. Introduction
Porous alumina was an important material for wide application area such as catalyst, [1-3] insulator, [4, 5] sensor [6-
10] and membrane templates [11, 12]. Fullerene is an allotrope of carbon which is a unique material with high
potential application in bio-engineering, bio-medical and tissue engineering [13-16]. Fullerene is hydrophobic in
nature and does not dispersed in water medium.
Corresponding author. Tel: +91 9432674860
E-mail address: debdulal@cgcri.res.in