Presentation + Paper
14 June 2023 Disruptive chemical approach to modify perovskites for chemical and biological sensors
Meghan Brandt, Mahack Kazmi, Ching Hua Su, Narasimha Prasad, Bradley Arnold, Fow-Sen Choa, Brian Cullum, Eric Bowman, Krishna S Machuga, N. B. Singh
Author Affiliations +
Abstract
We have been investigating CaCu3Ti4O12 class of perovskites for variety of applications due to its very large dielectric constant. Several mechanisms have been proposed for the existence of the high dielectric constant based on grain boundaries and oxygen deficiencies. We will report the results of the effects of monovalent substitution to replace calcium. This will alter the size to distort the perovskite structure. In addition, we used this system as a sensor for organic agents. There were very large changes in dielectric constant and resistivity indicating this system as a very good sensor material.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Meghan Brandt, Mahack Kazmi, Ching Hua Su, Narasimha Prasad, Bradley Arnold, Fow-Sen Choa, Brian Cullum, Eric Bowman, Krishna S Machuga, and N. B. Singh "Disruptive chemical approach to modify perovskites for chemical and biological sensors", Proc. SPIE 12548, Smart Biomedical and Physiological Sensor Technology XX, 1254804 (14 June 2023); https://doi.org/10.1117/12.2661233
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Dielectrics

Annealing

Perovskite

Sodium

Scanning electron microscopy

Sensors

Acetone

Back to Top