An experimental study on thermal energy harvesting using Ca sub(0.15)(Sr sub(0.5)Ba sub(0.5)) sub(0.85)Nb sub(2)O sub(5) pyroelectric ceramics

• Published in: Ferroelectrics. Letters section Vol. 43; no. 1-3; pp. 52 - 58
• Main Authors: Vaish, Manish, Madhar, Niyaz Ahamad, Ilahi, Bouraoui, Chauhan, V S, Vaish, Rahul
• Format: Journal Article
• Language: English
• Published: 15-06-2016
• Subjects: Capacitors; Ceramics; Energy harvesting; Ferroelectric materials; Internal energy; Microelectromechanical systems; Open circuit voltage; Thermal energy
• ISSN: 0731-5171; 1563-5228
• DOI: 10.1080/07315171.2016.1174002

Pyroelectric materials can be used for energy harvesting in integrated Micro-Electro-Mechanical-Systems (MEMS) and low power electronics devices. This paper considers the thermal energy harvesting using Ca sub(0.15)(Sr sub(0.5)Ba sub(0.5)) sub(0.85)Nb sub(2)O sub(5) (CSBN) pyroelectric ceramics. Hot/cold air was used to generate a continuous temporal temperature profile on the material surfaces. The maximum open circuit voltage was observed as 0.26V. The maximum stored energy was 1.9 mu J in 47 mu F capacitor (without load resistance). The maximum power was found to be 2.07nW across 3 M Omega and 47 mu F.