Trade News

Chinese and American scholars find ‘most durable luminous material’

Luminous material “the scientific name is long afterglow material,” luminous cup “, “night pearl” and other articles are made of long afterglow material. Recently, a team from Hefei University of Technology and the University of Nebraska-Lincoln have discovered the luminescence mechanism and reason of CaAl2O4:Eu, Nd, the most durable long-lasting luminescent material. The results have been published in the international famous academic journal “Materials Chemistry”. Long persistence materials commonly known as “luminous material” or storage luminous materials, optical properties for [...]

Research status of fluorescent materials

1. Doping modification: Other ions are added to the traditional fluorescent materials to increase the conversion efficiency and enhance the fluorescence intensity. For example, add the sensitized Yb3+ ions to the fluorescent material. Yb3+ ion has a strong absorption cross section near 980nm, and only has two energy levels, so it will not lose the excitation light energy due to the up-conversion process. Therefore, it is an ideal sensitizer. In particular, lithium ions enhance the fluorescence of rare earth [...]

Progress has been made in the study of luminescence mechanism of long-afterglow luminescent materials

Source: powder circle ( – the circle of business and life of people in the powder industry! Long afterglow materials commonly known as noctilucent materials or light-storage luminescent materials, in the visible or ultraviolet light excited, can maintain dozens of minutes to dozens of hours of continuous luminescence. This kind of material has wide application value in the fields of low-light lighting, emergency instruction, information storage and display, energy-saving building, intelligent transportation and so on. CaAl2O4:Eu,Nd is a typical blue-purple [...]

ShanXi university of science and technology has made new progress in the functionalization of long afterglow luminescent materials

With the exhaustion of energy and environmental pollution becoming increasingly serious, the development of new energy-saving and environment-friendly materials and products and the improvement of the performance of existing materials have become the focus of scientific and technological development and an important direction for environment-friendly countries to adhere to the construction of ecological civilization. Long afterglow luminescence materials can absorb light, lighting light source after stored energy, and continue to glow, so as to realize no electric light, is [...]

Rare earth up-conversion luminescence technology was shortlisted for the state technological invention award

The Ministry of Science and Technology released the preliminary evaluation results of the state science and technology awards, and “the establishment and multi-field application of real-time detection system based on rare earth nanoscale transmitting light technology” recommended by the Chinese medical association was shortlisted for the second prize. The project was developed by a project team supported by the academy of military medical sciences, Shanghai institute of optics and precision mechanics, Shanghai keyan optoelectronic technology co., LTD and Beijing [...]

Market application and development space of long afterglow self-luminous materials

In the field of building decoration, self-luminous materials are energy-saving, environment-friendly and low-carbon new building materials. The application of new self-luminous materials brings inestimable market value and practical value. City square, parking lot, residential pedestrian road, commercial pedestrian street, hotel, home decoration, traffic road zebra crossing update, traffic line, pedestrian walkway, roadside stone beautification, city riverside night, green pedestrian path, tourist attractions, pond edge beautification, etc., will be put into use a large number of self-luminous materials. So luminous [...]

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 [...]

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 [...]