The EC color-changing layer is the core of the whole system, and the performance of the device mainly depends on it. This layer can be either an anode coloring material or a cathode coloring material. The shape, composition and structure of EC films have a significant influence on… Read More »About Electrochromic layer EC
Long afterglow materials, commonly known as luminous materials or light storage luminescent materials, can maintain continuous luminescence ranging from tens of minutes to dozens of hours after being excited by visible light or ultraviolet light. This kind of material has a wide range of application values in low… Read More »Research progress on luminescence mechanism of long afterglow luminescent materials
The graphical representation of the fluorescence intensity as a function of the emission wavelength is called the fluorescence spectrum. It is one of the important physical properties of the excited state and can be measured using a fluorescence spectrometer. The fluorescence spectrum can also reveal the relevant properties… Read More »Fluorescence spectroscopy and Stokes shift
Photochromism refers to the reversible change of a substance between two physical or chemical states, at least one of which is caused by light radiation [10]. The change process can be represented by Equation 17.1.Its basic characteristics are: 1) T1 and T2 can exist stably under certain conditions;… Read More »Transition metal oxide semiconductor photochromic materials
The chameleon, as a particularly unique species among reptiles, has always attracted many people to conduct long-term observation and research on its color-changing ability. And the peculiar color-changing ability of their skin has also brought innovative inspiration to humans in some application fields. Although it is currently not… Read More »Photochromic pigments lead the way to the future of technology
Electroluminescence “phenomenon was first discovered in 1923 when Lossew was studying SiC geophone. In 1936, physicist Destriau discovered that the suspended medium containing trace copper impurities can emit visible light under alternating current field, so this luminescence phenomenon is also called Desriau effect. Because the transparent and conductive… Read More »Research progress of zinc sulfide electroluminescent materials in the field of smart wear
Due to the shortage of energy, the research and development and substitution of energy-saving products all over the world have become the trend of future industrial development, and lighting and display devices in daily life account for most of the power consumption, so LED (photodiode) semiconductor lighting technology… Read More »Green synthesis technology of nitride phosphor broken by Ningbo Materials Institute
The preparation of ThFS-doped luminous fibers includes StAl,O.: EU²+, Dy²+ luminous powder, and threeThree aspects: aryl sulfonium hexafluoroantimonate and luminous fibers. Among them, the preparation of triarylsulfonium hexafluoroantimonate has been elaborated in detail in the previous section, SrAl,O. The preparation of Eu²+ and Dy+ luminous powder was carried… Read More »Preparation of luminescent fibers doped with sulfonium salts
Sunlight-changing OP powder is a special type of small-molecule material that can alter its color under ultraviolet light. It appears as a white or nearly white powder. The color-changing mechanism stems from the excitation of OP molecules by UV radiation, which modifies their molecular structure and induces color… Read More »Regarding Sunlight Color-Changing Raw Powder
Luminescence in nature refers to a phenomenon where substances transform energy obtained through certain forms into light radiation. Therefore, when luminous fibers are stimulated by external energy (such as light, applied electric fields, or electron beams), they can be excited by absorbing energy. During this process, some excess… Read More »The luminescence mechanism of luminous fibers