2019 - JNVC - Page 4

Rare earth luminescent materials new fulcrum

White LED light source is a green energy-saving light source. At present, it mainly USES the combination of InGaN ultra-bright blue chip and rare earth yellow and red phosphors with high light conversion efficiency to produce composite white light. It is regarded as the synonym of advanced technology and green lighting, and will become the leading role in the future lighting and display market. As we all know, the development of LED industry cannot be separated from rare earth...

Thursday June 6th, 2019Trade NewsRead more...

Application of luminous powder rolling process

Calendering A method of forming a luminescent powder continuously into a film or sheet. In the rubber processing process, the luminous powder and the rubber compound can be calendered into a film of a certain thickness and width, or the pattern can be pressed on the film for the formation of the next product. The calendering method is also used to hang the fabric and the steel cord, and to bond the film to the film, the film and...

Thursday May 30th, 2019Technical SupportRead more...

Inkjet printing luminous film instructions

Inkjet printing luminous film (luminous paper, luminous photo printing film) Is a new generation of luminous digital output material, high resolution can be directly printed photos. This product has been tested by the relevant departments of the state, and it is non-radioactive, non-toxic and harmless. It is the only green energy-saving high-tech product that can emit light at night and display its contents without consuming electricity. After 5-15 minutes of visible light, the product can spontaneously light in the dark for...

Tuesday May 21st, 2019Technical SupportRead more...

Luminescence mechanism of long afterglow luminescent materials

Hole transport model For this type of material, the earliest model was the hole transport model proposed by Matsuzawa et al. in the SrAl2O4:Eu, Dy system. Based on this model, Matsuzawa believes that in the long afterglow materials SrAl2O4:Eu, Dy, Eu is the electron capture center and Dy is the hole trapping center. When the material is excited by UV, Eu can capture electrons to become Eu, and the resulting holes are captured by Dy through the valence band to...

Monday May 13th, 2019Technical SupportRead more...

Luminous powder silica coating modification treatment

Water-based luminescent powder is modified by silica cladding on SrAl2O4: Eu2+ and Dy3+ long afterglow luminescent powder by chemical precipitation method, which can effectively improve the water resistance of luminescent powder, but has little effect on the long afterglow luminescence characteristics of luminescent powder. Emulsion paint with modified luminescent powder has the advantages of storage stability and good water resistance. Luminescence performance before and after modification of luminescent powder: the peak types and peak positions of the excitation and...

Sunday May 5th, 2019Technical SupportRead more...

From the aristocracy to the common people – new captain afterglow luminous materials

Long Persistent Luminescence (LPL) material is also known as luminescent Luminescence material, commonly known as luminous powder or Long afterglow powder. Its luminescence principle is photoluminescence, that is, when excited by the light source, the excitation energy is stored in the excited state. When the excitation stops, the energy is slowly released in the form of light. In 1996, Matsuzawa et al. published a strontium aluminate (SrAl2O4) system doped with europium (Eu) and dysprosium (Dy), with a decay time...

Tuesday April 30th, 2019Trade NewsRead more...

Analysis of luminance and duration of luminous powder

rare earth photoluminescent pigment because of its long-lasting, non-radiation characteristics are more and more accepted by the industry and customers, but about the rare earth luminescent pigments brightness problems are often puzzled in new customers, the manufacturers say can clearly lit 10 hours, how a few hours out of sight, might think of a lie is not a manufacturer or product quality problems, which may cause some unnecessary misunderstanding. In this pair of glow in the dark pigment brightness...

Wednesday April 17th, 2019Technical SupportRead more...

Uv anti – counterfeiting phosphors use technical instructions, product characteristics

About uv anti-counterfeiting phosphors: L the special phosphor powder of this series of products presents white or nearly transparent color under the light source of visible light, and one or more fluorescent colors, including organic, inorganic, afterglow and other special effects, appear under the light source of different wavelengths (254nm, 365nm, 850nm), with bright and beautiful colors. L this series of products have a variety of colors including blue, red, yellow, green, purple, orange and pink. Product features: 1, inorganic phosphor l...

Monday April 15th, 2019Technical SupportRead more...

Yearly Archives - 2019