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Discoloration mechanism,structures and recent applications of thermochromic materials via different methods:A review

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Journal of materials Science & Technology 2018年第12期34卷 2225-2234页

作者： Youliang Cheng Xiaoqiang Zhang Changqing Fang Jing Chen Zhen Wang Faculty of Printing Packaging Engineering and Digital Media TechnologyXi'an University of Technology

thermochromic material is a kind of smart material whose color will vary as the result of the phase transition caused by the temperature change. The characteristics of thermochromic materials are the memory functions to the temperature, having great potential applications in aerospace, military, anticounterfeiting technology, construction and other fields. In recent years, many kinds of thermochromic materials have been prepared by different methods and their discoloration mechanisms are various according to published literatures. In this paper, the classification, discoloration mechanism, preparation methods, application fields and development trend of thermochromic materials are reviewed.

关键词： thermochromic materials Discoloration mechanism Transformation temperature Classification

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Rational design of photofunctional dyes BODIPYs/aza-BODIPYs and applications for photocatalysis, photoelectric conversion and thermochromic materials

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Resources Chemicals and materials 2024年第2期3卷 103-122页

作者： Dongxiang Zhang Linxuan Liu Xin Zhang Jie Lu Xin-Dong Jiang Liaoning&Shenyang Key Laboratory of Functional Dye and Pigment Shenyang University of Chemical TechnologyShenyang 110142PR China

4,4-Difluoro-4-bora-3a,4a-diaza-sindacene (BODIPY) is a sort of photofunctional dye which possesses advantages including strong light-capturing property, high photon-resistance, etc. Meso-N substituted aza-BODIPY is a crucial derivative of BODIPY scaffold that has the favorable optical properties and a significant spectral redshift. The photophysical properties can be tuned by molecular design, and the attenuation path of the excited state energy release of absorbed light energy can be well controlled via structural modifications, enabling tailored application. It has been extensively employed in life medicine fields including fluorescence imaging diagnosis, photodynamic therapy photosensitizer and photothermal therapy reagent and so forth. Extensive research and review have been performed in these areas. However, BODIPYs/aza-BODIPYs have a significant role in energy, catalysis, optoelectronics, photo-responsive materials and other fields. Nevertheless, there are relatively few studies and reviews in these fields on the modification and application based on BODIPY/aza-BODIPY scaffold. Herein, in this review we summarized the application of BODIPY/aza-BODIPY in the aforementioned fields, with the molecular regulation of dye as the foundation and the utilization in the above fields as the objective, in the intention of providing inspiration for the exploration of innovative BODIPY/aza-BODIPY research in the field of light resource conversion and functional materials.

关键词： BODIPYs/aza-BODIPYs Photofunctional dyes Photocatalysis Photoelectric conversion thermochromic materials

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Investigation on emissive properties of peroskite-type oxide LSMO with grating surface

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Science China(Technological Sciences) 2011年第1期54卷 220-225页

作者： HUANG JinGuo XUAN YiMin LI Qiang School of Power Engineering Nanjing University of Science & Technology Nanjing 210094 China

This paper aims to investigate thermal radiative characteristics of thermochrornic material La0.825Sr0.175MnO3（LSMO） with one-dimensional grating structured surfaces. The dielectric function of LSMO was calculated by K-K approach. Numerical calculation was conducted to obtain spectral emittance distribution of such surfaces with different structural parameters using the finite difference time domain （FDTD） method. It was found that the spectral emittance of LSMO structured surface exhib- ited the feature of selective enhancement due to the excitation of microcavity effect. The effects of structural parameters on spectral emittance indicated that the desired radiative enhancement could be achieved by the rational design of the structural parameters of grating. The temperature dependence of averaged emittance of LSMO was also calculated, The results showed that LSMO with grating structured surface had a better thermochromic performance compared with LSMO with smooth surface.

关键词： grating thermochromic materials emission

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