赵亚丽,王小盼,王金金,李勇.TiO2/Ag/TiO2复合薄膜结构对其色度的影响[J].表面技术,2023,52(7):270-277, 324.
ZHAO Ya-li,WANG Xiao-pan,WANG Jin-jin,LI Yong.Effect of Structure of TiO2/Ag/TiO2 Composite Films on Their Chromaticity[J].Surface Technology,2023,52(7):270-277, 324 |
| TiO2/Ag/TiO2复合薄膜结构对其色度的影响 |
| Effect of Structure of TiO2/Ag/TiO2 Composite Films on Their Chromaticity |
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| DOI：10.16490/j.cnki.issn.1001-3660.2023.07.024 |
| 中文关键词: 光学薄膜 透射率 色度 色差 |
| 英文关键词:optical film transmittance chromaticity chromatic aberration |
| 基金项目:国家自然科学基金(62105131);山西省自然科学基金(202203021212508);山西省高等学校教学改革创新项目(J2021652);山西省科技创新青年人才团队(202204051001005);晋中市科技重点研发项目(Y201027) |
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| Author | Institution |
| ZHAO Ya-li | Department of Materials Science and Engineering,Shanxi Jinzhong 030619, China |
| WANG Xiao-pan | Department of Physics Science and Electronic Engineering, Jinzhong University, Shanxi Jinzhong 030619, China |
| WANG Jin-jin | Department of Physics Science and Electronic Engineering, Jinzhong University, Shanxi Jinzhong 030619, China |
| LI Yong | Department of Materials Science and Engineering,Shanxi Jinzhong 030619, China |
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| 中文摘要: |
| 目的 针对建筑玻璃节能环保和良好视觉效果的双重目的，构建了TiO2/Ag/TiO2复合薄膜。方法 采用光学薄膜设计软件TFCalc分别研究了Ag和TiO2膜厚、膜层层数等对其可见光透射率、色度、色差及红外透射率的影响。结果 单结构TiO2/Ag/TiO2膜层，随金属Ag膜厚增加，透射峰值对应波长变化不明显，亮度降低，色泽饱和度提高。随TiO2膜厚增加，其透射峰值变化很小，透射峰值对应波长发生红移，亮度先提高后降低，色度从蓝色系转换成黄色系。Ag和TiO2膜每增减5 nm，其色差分别达10以上和5以下。和单结构相比，双结构TiO2/Ag/TiO2透射峰对应波长较短，透射谱更窄，且随Ag和TiO2膜厚增减，色差更大。Ag膜每增减5 nm，色差可达20以上。随TiO2膜厚增加，其色度从蓝色、天蓝色、绿色、粉色、黄色和橙色间变化。由于金属Ag膜表面等离子激元耦合，其透射谱峰值随结构数增加不仅没有降低，反而升高。结论 最终发现采用25 nm TiO2/15 nm Ag/25 nm TiO2双结构时，可获得较高可见光透光率和低的红外反射率、人眼舒适的色度。为降低不同批次产品的色差，在工业生产中，Ag和TiO2应分别采用负偏差和正偏差。通过本研究建立了TiO2/Ag/TiO2复合薄膜的色卡。 |
| 英文摘要: |
| In order to obtain low energy consumption and comfortable color for human eyes, TiO2/Ag/TiO2 composite films of high reflectance in infrared wavelength range and desired color in visible range were prepared. The TiO2/Ag/TiO2 composite films can help minimize radiative heat exchange between the indoor and outdoor environments, thus saving energy for all-year cooling and heating while satisfying the required aesthetical effect. The effects of the thickness and layers of Ag and TiO2 films on the transmission, chromaticity and color difference were simulated by TFCalc. The results showed that as for the single structure TiO2/Ag/TiO2 film, the wavelength corresponding to maximum transmission did not change obviously, and the brightness decreased accordingly. The color saturation increased with the increase of the thickness of the Ag film simultaneously. However, the maximum transmittance changed little and the wavelength corresponding to maximum transmittance had red shift with the increase of TiO2 film thickness. Meanwhile, the brightness increased first and then decreased correspondingly, and the chromaticity changed from blue to yellow. Accordingly, the color deviation was more than 10 and less than 5 with changing the thickness of Ag and TiO2 films for 5 nm respectively. For the single-structure TiO2/Ag/TiO2, comfortable visual effect can be obtained by adopting the structure of 20 nm TiO2/15 nm Ag/20 nm TiO2 or 25 nm TiO2/20 nm Ag/ 25 nm TiO2. It was necessary to set the thickness of TiO2 films to negative deviation in order to achieve the purpose of low chromatic aberration. Compared with single-structure TiO2/Ag/TiO2 composite films, dual-structure TiO2/Ag/TiO2 films had shorter wavelength corresponding to maximum transmittance and narrower transmission band. It was interesting that the dual-structure TiO2/Ag/TiO2 film has higher maximum transmittance although it contained more layers of Ag films due to the coupling of surface plasmon polaritons of Ag films. Additionally, the chromatic aberration had a greater change with the thickness changing of Ag and TiO2 films. The chromatic aberration was more than 20 with thickness changing of Ag films for 5 nm. The chromaticity of dual-structure TiO2/Ag/TiO2 composite films varied from blue, sky blue, green, pink, yellow and orange. It was worth noting that more colour could be obtained by the dual-structure. Compatible stealth for visible light and near infrared can be achieved by adopting dual-structure of TiO2/Ag/TiO2 composite films which can enormously reduce the near infrared and form camouflage patterns to segment visible images. Finally, it is found that it could obtain high transmittance and comfortable colour of human eyes in visible region and low infrared reflectivity in infrared region and by adopting dual-structure of 25 nm TiO2/15 nm Ag/25 nm TiO2. In order to reduce the chromatic aberration of different batches of products. It is necessary to adopt negative and positive deviation respectively for Ag and TiO2 thickness in the industrial production. The TiO2/Ag/TiO2 composite film colour card is established. The colour of the composite films can be obtained by adopting different structures. The work provides insights for innovative energy-saving building envelope materials that can help achieve global carbon neutrality and sustainability. |
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