Reflectance spectroscopy of functional Ag-Cu thin films: Correlation of reflectivity with Cu content

Sayantan Das; Terry Alford

doi:10.1007/s11837-012-0545-4

Reflectance spectroscopy of functional Ag-Cu thin films: Correlation of reflectivity with Cu content

Sayantan Das, Terry Alford

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

We have investigated the optical properties of sputter-deposited silver-copper alloy thin films on silicon substrates at room temperature. We found that alloying copper with silver can significantly improve the metal's surface morphology, keeping its infrared reflectivity same as that of pure silver film. However at the same time, it worsens in the blue parts of the spectrum. The reflection in Ag-Cu thin films is interpreted in terms of a simple model describing its trend due to alloying. The experimental results and the speculations reveal a prospect for the improvement and optimization of solar reflectors.

Original language	English (US)
Pages (from-to)	538-541
Number of pages	4
Journal	JOM
Volume	65
Issue number	4
DOIs	https://doi.org/10.1007/s11837-012-0545-4
State	Published - Apr 2013

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)

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title = "Reflectance spectroscopy of functional Ag-Cu thin films: Correlation of reflectivity with Cu content",

abstract = "We have investigated the optical properties of sputter-deposited silver-copper alloy thin films on silicon substrates at room temperature. We found that alloying copper with silver can significantly improve the metal's surface morphology, keeping its infrared reflectivity same as that of pure silver film. However at the same time, it worsens in the blue parts of the spectrum. The reflection in Ag-Cu thin films is interpreted in terms of a simple model describing its trend due to alloying. The experimental results and the speculations reveal a prospect for the improvement and optimization of solar reflectors.",

author = "Sayantan Das and Terry Alford",

note = "Funding Information: This work was partially supported by the National Science Foundation (C. Ying, DMR-0902277), to whom the authors are greatly indebted.",

year = "2013",

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doi = "10.1007/s11837-012-0545-4",

language = "English (US)",

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T1 - Reflectance spectroscopy of functional Ag-Cu thin films

T2 - Correlation of reflectivity with Cu content

AU - Das, Sayantan

AU - Alford, Terry

N1 - Funding Information: This work was partially supported by the National Science Foundation (C. Ying, DMR-0902277), to whom the authors are greatly indebted.

PY - 2013/4

Y1 - 2013/4

N2 - We have investigated the optical properties of sputter-deposited silver-copper alloy thin films on silicon substrates at room temperature. We found that alloying copper with silver can significantly improve the metal's surface morphology, keeping its infrared reflectivity same as that of pure silver film. However at the same time, it worsens in the blue parts of the spectrum. The reflection in Ag-Cu thin films is interpreted in terms of a simple model describing its trend due to alloying. The experimental results and the speculations reveal a prospect for the improvement and optimization of solar reflectors.

AB - We have investigated the optical properties of sputter-deposited silver-copper alloy thin films on silicon substrates at room temperature. We found that alloying copper with silver can significantly improve the metal's surface morphology, keeping its infrared reflectivity same as that of pure silver film. However at the same time, it worsens in the blue parts of the spectrum. The reflection in Ag-Cu thin films is interpreted in terms of a simple model describing its trend due to alloying. The experimental results and the speculations reveal a prospect for the improvement and optimization of solar reflectors.

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Reflectance spectroscopy of functional Ag-Cu thin films: Correlation of reflectivity with Cu content

Abstract

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