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Volume 6 Research & Reviews: Journal of Material Sciences
ISSN: 2321-6212 Advanced Materials 2018
September 04-06, 2018
September 04-06, 2018 | Zürich, Switzerland
21st International Conference on
Advanced Materials & Nanotechnology
Hybrid perovskite halide for detection of environmental pollutant in atmosphere
Barnali Ghosh (Saha)
S N Bose National Centre for Basic Sciences, India
In recent years, the organic/inorganic halide perovskites are emerging material and have attracted significant attention
because of its various important application potentials like solar cells and other optoelectronic applications. Sensors based
on thin films of different materials are widely used for various hazardous gas detection. These sensors with proper electrical
readout, if made sensitive enough can even be used for non-invasive diagnosis of disease using the technique of breath analysis.
While there are many electrical readout sensors that can detect hazardous gas typically with concentration ≥10 ppm, there are
not too many visual (color change type) sensors that can easily detect hazardous gas with comparable sensitivity. Very recent
developments of a visual color change-based sensor made using hybrid perovskite halide as working material led to detection
of hazardous gas like ammonia with concentration <5 ppm with very high selectivity in room temperature. The low cost of
the synthesis and the fact that it is made on a paper makes the sensor disposable. It is a low cost portable sensor for rapid, easy
and selective detection of the atmospheric ammonia in open or closed environment by a simple color change effect, without
the need for any other instruments. This visual sensor will be useful in places that can produce and emit ammonia gas in the
environment such as food grain storage facilities, waste disposal sites and perishable materials storage facilities.
Biography
Dr. Barnali Ghosh Saha), is now a Scientist-E, (Associate Professor) in the Department fo Condensed Matter Physics and Material Sciences and Head of the department
of Technical Research facility programme. She is a member of Indian Physics Association. She got Ph.D degree in Physic award in 1998. She got a research Award in
Woman Scientist programme in 2003 and 2008 from “Department of Science and Technology, Government of India”. Currently Dr. Barnali Ghosh (Saha)’s researches
focus on experimental condensed matter Physics and Nano Science and nanotechnology, Physics of transition metal oxides mainly perovskite oxides. She is also working
on fabrication of single nanowire based devices using different lithographic techniques like, e-beam and focused ion beam techniques and transport measurement on
single nanowire. She also does cross sectional transmission electron microscopy related work using focused ion beam based techniques.
Barnali Ghosh (Saha), Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C3-020