Voltage response of pyroelectric SnO₂/Fe₂O₃ films deposited via spray pyrolysis

Authors

Arvin Escolano ⋅ PH National Institute of Physics, University of the Philippines Diliman
Armando Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman
Elmer Estacio ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arnel Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Pyroelectric SnO₂/Fe₂O₃ nanocomposite films were deposited on glass substrates via spray pyrolysis. Samples with 10, 20, and 40 mol.% Fe were prepared and subjected to X-ray Diffractometry (XRD) and dynamic pyroelectric measurements. XRD analysis confirmed that the samples are nanocomposites with SnO₂and Fe₂O₃ phases present in the films. As predicted by the Ostwald ripening model, increasing the Fe concentration diminishes the crystallite sizes of the constituent phases. The pyroelectric coefficient p_vwas found to improve with increasing Fe concentration due to the smaller crystallite size present in the films. The highest observed p_v is 2.78 × 10⁵ V/mK at 350^oC.

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Issue

2016: Proceedings of the 34th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2016-5B-04

Section

Condensed Matter Physics and Materials Science

Published

2016-08-18

How to Cite

[1]

A Escolano, A Somintac, E Estacio, and A Salvador, Voltage response of pyroelectric SnO2/Fe2O3 films deposited via spray pyrolysis, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-5B-04 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-5B-04.