Thermal Stability of SnOx/NiCrOx/Ag/AZO/ SnOx/glass Multilayer Films Applied in Low-emissivity Glass

CSME 2018/08
Volume 39 No.4 : 427-431

Thermal Stability of SnOx/NiCrOx/Ag/AZO/ SnOx/glass Multilayer Films Applied in Low-emissivity Glass

Shang-Chou Chang^a, Shang-Chao Hung^b, Chang-Sin Ye^c, Yu-Jen Hsiao^d, Tien-Chai Lin^a, Hon-Zen Cheng^a and Yi-Lin Shen^a
^aDepartment of Electrical Engineering, Kun Shan University, Tainan City 71010, Taiwan.
^bDepartment of Information Technology and Communication, Neimen, Kaohsiung City 84550, Taiwan.
^cMetal Industries Research & Development Centre, Kaohsiung City, Taiwan.
^dNational Nano Device Laboratories, Tainan City 74147, Taiwan.

Abstract: Low-emissivity glass is heat-block glass with high transmission in visible and high reflectivity in infrared region. Silver-based multilayer films is the potential candidate applied in low-emissivity glass compared with others. Low-emissivity glass usually needs high temperature process like bending or toughening process in industry. Characteristics of low-emissivity may deteriorate for low-emissivity glass after high-temperature process. The tin oxide/nickel chromium oxide/silver/ aluminum doped zinc oxide/tin oxide/glass (SnOx/NiCrOx/Ag/AZO/ SnOx/glass) and silver/aluminum doped zinc oxide/ tin oxide/glass (Ag/AZO/SnOx/glass) samples were produced by in-line sputtering. Part of the two samples was post treated with one hour and 500°C heat process. Microstructure, optical properties and emissivity of heated SnOx/NiCrOx/Ag/AZO/SnOx/ glass show no evident change compared with those of as-deposited samples. However, microstructure and optical properties apparently alter and the emissivity degenerate from 0.10 to 0.32 for heated Ag/AZO/ SnOx/glass samples. The outer layer: SnOx/ NiCrOx on Ag films can effectively prevent Ag agglomeration resulted from heat treatment. This paper contributes to the development of low-emissivity glass applied in energy-saving buildings.

Keywords: thermal stability, low-emissivity glass, silver

Download PDF

*Corresponding author; e-mail:

TOP