期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 243, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.solmat.2022.111784
关键词
Anti-reflective coatings; PV glass Cover; Zr-oxides doping; Optical properties; Mechanical properties; Nanoindentation
资金
- ANID [21161488]
- Nucleo Milenio Multimat. Fondecyt Project [1191779]
- Fondequip [EQM 140142]
- ANID-Chile
- project Fondequip [EQ M190057]
- Fondecyt [1220331]
Multi-layer TiO2/SiO2 coatings doped with Zr-oxides were investigated to enhance their crystalline structure and density/compactness, and to form Si-Zr-O bonds. The doping of Zr-oxides improved the optical and mechanical properties of the coatings, with the sample annealed at 400 C and doped with 1 at.-% Zr showing the best anti-reflective behavior and mechanical performance.
Multi-layer systems are frequently used as anti-reflective coatings (ARCs) due to their excellent optical properties. However, these systems suffer from erosive degradation (wear), thus urgently seeking alternative ways to improve their mechanical properties while maintaining their optical response. To tackle this problem, we propose to dope multi-layer TiO2/SiO2 coatings with Zr-oxides to enhance their crystalline structure and density/ compactness, as well as to form Si-Zr-O bonds. We explore the effect of Zr-oxide doping on the microstructure as well as the optical and mechanical properties of multi-layer TiO2/SiO2 coatings with the overall aim to synergistically induce enhanced optical and mechanical properties. Therefore, homogeneous 250 nm thick multi-layer TiO2/SiO2 coatings doped with Zr-oxides (different atomic concentrations) were deposited on glass substrates by magnetron sputtering. Based on our analysis, Zr-doping improves the optical and mechanical properties simultaneously. Among all ARCs, the sample annealed at 400 C and doped with 1 at.-% Zr presented an excellent anti reflective behavior and the best mechanical performance. These characteristics point towards an improved mechanical resistance (outstanding durability) and optical efficiency thus rendering them excellent candidates for the protection of glass covers on solar panels.
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