Examination and simulation of effect of Ag2O content on heat mirror production

En-Shih Chen; Jin-Yu Wu; Chun-Wei Yang; Shih-Tse Chang; Wei-Sin Lin; Ching-Pei Tseng

doi:10.1117/12.2054014

16 December 2013 Examination and simulation of effect of Ag₂O content on heat mirror production

En-Shih Chen, Jin-Yu Wu, Chun-Wei Yang, Shih-Tse Chang, Wei-Sin Lin, Ching-Pei Tseng

Proceedings Volume 9068, Eighth International Conference on Thin Film Physics and Applications; 906815 (2013) https://doi.org/10.1117/12.2054014
Event: Eighth International Conference on Thin Film Physics and Applications (TFPA13), 2013, Shanghai, China

Abstract

We propose a method to determine the effect of Ag₂O on heat mirror production processes. A heat mirror is a low emissivity ( low-E ) film with high visible transmittance, high infrared reflectance and vanishing infrared transmittance. We carried out a computer simulation to understand the effect of Ag₂O on the spectrum of three-layered low-E films. We then prepared three-layered low-E samples with ITO buffer layers, which were deposited on the Ag layer at 0.6kW, 1kW, and 2kW sputtering power. The simulation showed that the peak visible transmittance decreased, the FWHM of the transmittance widened, and the infrared reflectance was lowered as the amount of Ag₂O was increased. In experiments, the three-layered sample with the buffer sputtered at 0.6kW exhibited a lower peak transmittance, broadened FWHM, and decreased infrared reflectance, suggesting that higher levels of Ag2O were introduced. We also prepared five-layered low-E samples, which are of typical heat mirror structures, with buffer layers similar to the three layered samples. The transmittance and reflectance spectrum of the five-layered sample with the buffer sputtered at 0.6kW also suggested a higher Ag₂O content than other samples. Therefore, studying the spectrum of the three-layered low-E film, along with the simulation, can be an economical way to optimize manufacturing processes in the production of five-layered low-E films.

Citation Download Citation

En-Shih Chen, Jin-Yu Wu, Chun-Wei Yang, Shih-Tse Chang, Wei-Sin Lin, and Ching-Pei Tseng "Examination and simulation of effect of Ag₂O content on heat mirror production", Proc. SPIE 9068, Eighth International Conference on Thin Film Physics and Applications, 906815 (16 December 2013); https://doi.org/10.1117/12.2054014

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KEYWORDS

Silver

Transmittance

Reflectivity

Infrared radiation

Mirrors

Sputter deposition

Reflection

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