Demonstration of electrochromism in copper oxide thin films prepared via spray pyrolysis

Authors

Mylenne S. Manrique ⋅ PH National Institute of Physics, University of the Philippines Diliman
Horace Andrew F. Husay ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arnel A. Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman
Armando S. Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Electrochromism in copper oxide thin films deposited using spray pyrolysis technique was successfully demonstrated at 5 V and 10 mA. Cathodic and anodic reactions result to reversible transition between copper oxide and copper. XRD patterns confirm the presence of both CuO and Cu₂O on the fabricated films and even after electrochemical cycling supporting the reversible switching behavior. The electrochromic efficiency of the system measures 1.2 cm²/C at 1000 nm. High transmittance modulation was observed in the NIR region which ranges from 19% to 71% at 1000 nm. The reflectance modulation covers up to approximately 50% difference between the two optical states (Cu_xO and Cu) at 1000 nm.

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Issue

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

Physics at the front and center: Strengthening core values in physics research
18–21 August 2016, University of the Philippines Visayas, Iloilo City

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Article ID

SPP-2016-5B-06

Section

Condensed Matter Physics and Materials Science

Published

2016-08-18

How to Cite

[1]

MS Manrique, HAF Husay, AA Salvador, and AS Somintac, Demonstration of electrochromism in copper oxide thin films prepared via spray pyrolysis, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-5B-06 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-5B-06.