STABILITY STUDY OF AGTA INFRARED REFLECTIVE FILM

Yang Deng; Cao Hongtao; Gao Junhua

doi:10.19912/j.0254-0096.tynxb.2025-0112

PDF(3097 KB)

Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (6) : 792-798. DOI: 10.19912/j.0254-0096.tynxb.2025-0112

STABILITY STUDY OF AGTA INFRARED REFLECTIVE FILM

Yang Deng¹, Cao Hongtao², Gao Junhua³

Author information +

History +

Abstract

Conventional infrared reflective layers often struggle with thermal instability at high temperatures or insufficient infrared reflectivity, limiting their practical applications. In this study, we employed a microalloying approach to enhance film performance by incorporating tantalum （Ta） into silver （Ag） films via magnetron sputtering. The reflective spectra, crystal structure, and surface morphology of the films were systematically analyzed. The results indicate that Ta doping effectively inhibites the preferred growth of the Ag（111） crystal plane. Furthermore, high-vacuum thermal stability tests at 600 ℃ confirm that the AgTa infrared reflective coatings retain excellent optical and structural stability, even under elevated temperatures.

Key words

microalloying / Ag / thermal stability / IR reflective layer / reflectance / magnetron sputtering

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Yang Deng, Cao Hongtao, Gao Junhua. STABILITY STUDY OF AGTA INFRARED REFLECTIVE FILM[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 792-798 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0112

References

[1] KENNEDY C E.Review of mid-to high-temperature solar selective absorber materials[R]. National renewable energy lab(NREL), Golden, CO(United States), 2002.
[2] 杨子键, 刘静, 汪洪, 等. 中高温太阳光谱选择性吸收涂层金属钨红外反射层的性能研究[J]. 太阳能学报, 2021, 42(12): 48-53.
YANG Z J, LIU J, WANG H, et al.Study of tungsten thin film as IR reflective layer in medium-high temperature solar thermal utilization[J]. Acta energiae solaris sinica, 2021, 42(12): 48-53.
[3] 裴刚, 赵斌, 陈肯. 一种用于光电/光热综合利用的光谱选择性金属网格涂层[J]. 太阳能学报, 2024, 45(6): 303-309.
PEI G, ZHAO B, CHEN K.A spectrally selective metal mesh coating for photovoltaic/thermal applications[J]. Acta energiae solaris sinica, 2024, 45(6): 303-309.
[4] KIM H C, ALFORD T L.Improvement of the thermal stability of silver metallization[J]. Journal of applied physics, 2003, 94(8): 5393-5395.
[5] GAO J H, WANG X Y, YANG B, et al.Plasmonic AgAl bimetallic alloy nanoparticle/Al₂O₃ nanocermet thin films with robust thermal stability for solar thermal applications[J]. Advanced materials interfaces, 2016, 3(16): 1600248.
[6] HUANG Y, WEN J, ZHAO Y, et al.The effect of Ag addition on the microstructure evolution in peak aging and retrogression and re-aging processes of an Al-Zn-Mg-Cu-Zr alloy[J]. Journal of alloys and compounds, 2025, 1010: 178004.
[7] XU A, LI X, LIU H, et al.Over 10% efficiency pure sulfide kesterite solar cells on transparent electrode with Cd-Ag Co‐alloying[J]. Small, 2025, 21(1): 2407075.
[8] JIAO Z B, SCHUH C A.Nanocrystalline Ag-W alloys lose stability upon solute desegregation from grain boundaries[J]. Acta materialia, 2018, 161: 194-206.
[9] 易自砚, 李红星, 何邵华, 等. 太阳能热发电站高温熔盐罐基础设计关键参数研究[J]. 太阳能学报, 2025, 46(2): 464-469.
YI Z Y, LI H X, HE S H, et al.Study on key parameter of high temperature molten salt tank foundation design in solar power station[J]. Acta energiae solaris sinica, 2025, 46(2): 464-469.
[10] LOKA C, GELIJA D, VATTIKUTI S P, et al.Silver-boosted WO₃/CuWO₄ heterojunction thin films for enhanced photoelectrochemical water splitting efficiency[J]. ACS sustainable chemistry & engineering, 2023, 11(32): 11978-11990.
[11] KIM T K, VANSADERS B, CALDWELL E, et al.Copper-alloyed spinel black oxides and tandem-structured solar absorbing layers for high-temperature concentrating solar power systems[J]. Solar energy, 2016, 132: 257-266.
[12] GAO J, TU C, LIANG L, et al.Silver nanoparticles with an armor layer embedded in the alumina matrix to form nanocermet thin films with sound thermal stability[J]. ACS applied materials & interfaces, 2014, 6(14): 11550-11557.
[13] WANG X, GAO J, HU H, et al.High-temperature tolerance in WTi-Al₂O₃ cermet-based solar selective absorbing coatings with low thermal emissivity[J]. Nano energy, 2017, 37: 232-241.
[14] OTTEN M T.High‐angle annular dark‐field imaging on a TEM/STEM system[J]. Journal of electron microscopy technique, 1991, 17(2): 221-230.