The film thickness dependent thermal stability of Al2O3:Ag thin films as high-temperature solar selective absorbers | |
Xiao, Xiudi![]() ![]() ![]() | |
刊名 | journal of nanoparticle research
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2012-03-01 | |
卷号 | 14期号:3 |
关键词 | Al2O3:Ag thin films Solar selective absorbers SPR absorption Thermal stability Energy conversion |
英文摘要 | the monolayer al2o3:ag thin films were prepared by magnetron sputtering. the microstructure and optical properties of thin film after annealing at 700 degrees c in air were characterized by transmission electron microscopy, x-ray diffraction, x-ray photoelectron spectroscopy, and spectrophotometer. it revealed that the particle shape, size, and distribution across the film were greatly changed before and after annealing. the surface plasmon resonance absorption and thermal stability of the film were found to be strongly dependent on the film thickness, which was believed to be associated with the evolution process of particle diffusion, agglomeration, and evaporation during annealing at high temperature. when the film thickness was smaller than 90 nm, the film spr absorption can be attenuated until extinct with increasing annealing time due to the evaporation of ag particles. while the film thickness was larger than 120 nm, the absorption can keep constant even after annealing for 64 h due to the agglomeration of ag particles. on the base of film thickness results, the multilayer al2o3:ag solar selective thin films were prepared and the thermal stability test illustrated that the solar selectivity of multilayer films with absorbing layer thickness larger than 120 nm did not degrade after annealing at 500 degrees c for 70 h in air. it can be concluded that film thickness is an important factor to control the thermal stability of al2o3:ag thin films as high-temperature solar selective absorbers. |
WOS标题词 | science & technology ; physical sciences ; technology |
类目[WOS] | chemistry, multidisciplinary ; nanoscience & nanotechnology ; materials science, multidisciplinary |
研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
关键词[WOS] | surface-plasmon resonance ; optical-properties ; nanocomposite films ; silver ; nanoparticles ; nanoclusters ; coatings ; behavior ; size |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000302639600023 |
内容类型 | 期刊论文 |
源URL | [http://ir.giec.ac.cn/handle/344007/10175] ![]() |
专题 | 中国科学院广州能源研究所 |
作者单位 | Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrates, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
推荐引用方式 GB/T 7714 | Xiao, Xiudi,Xu, Gang,Xiong, Bin,et al. The film thickness dependent thermal stability of Al2O3:Ag thin films as high-temperature solar selective absorbers[J]. journal of nanoparticle research,2012,14(3). |
APA | Xiao, Xiudi,Xu, Gang,Xiong, Bin,Chen, Deming,&Miao, Lei.(2012).The film thickness dependent thermal stability of Al2O3:Ag thin films as high-temperature solar selective absorbers.journal of nanoparticle research,14(3). |
MLA | Xiao, Xiudi,et al."The film thickness dependent thermal stability of Al2O3:Ag thin films as high-temperature solar selective absorbers".journal of nanoparticle research 14.3(2012). |
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