Other Articles - JiNan Vican

Several ways of molecular excitation

(1) Thermal excitation to excite electrons in normal state molecules requires a large amount of energy, which can only be achieved in flames and high-temperature furnaces. The energy required to excite molecular vibrations is much smaller, but only a certain proportion of molecular vibrations in heated gases are excited. In normal temperature gases, molecules are in rotation, and the energy required to excite molecular rotation is even smaller. The characteristic of thermal excitation is that the number of molecules...

Thursday February 26th, 2026Other Articles, Technical SupportRead more...

Application of luminescent powder in printing paste

The preparation and application methods of luminous printing paste described in this paper are for reference only, and corresponding adjustments should be made in practical application. Select medium-sized or alkaline transparent printing paste and D-type or S-type luminescent pigment with the weight ratio of 20-50%, and mix them evenly. Adjust the viscosity with the corresponding diluent. Before printing luminescent printing paste, you should first lay a layer of white background. The following transparent printing pastes are available for selection. Nylon printing paste Advanced...

Tuesday January 27th, 2026Other ArticlesRead more...

The development of blue long-lasting phosphorescent materials for fibers

The main raw material for preparing blue light night glow fibers is the rare earth long-lasting phosphorescent material that can emit blue light. The research fields of blue light long-lasting phosphorescent materials include the metal sulfide system, the aluminum oxide system, and the silicate system. In 1866, French chemist Theodore Sidot prepared ZnS-based sulfide phosphorescent materials, which belong to the first generation of long-lasting phosphorescent materials. Since the 1920s, people have begun to develop blue light sulfide system long-lasting...

Sunday January 4th, 2026Other ArticlesRead more...

What issues should be noted when applying plastic luminous agents?

Plastic luminous agents can be used for both thermoplastic and thermosetting plastics. However, to fully leverage their effectiveness, they are more effective in manufacturing light-colored or transparent luminous plastic products. The luminous plastics produced from the widely used rare earth aluminate-based plastic luminous agents at present have relatively good comprehensive performance. In order to produce luminous plastics that satisfy customers, the following issues should be noted during the use of plastic luminous agents. ① The uniformity of dispersion of plastic...

Friday November 28th, 2025Other ArticlesRead more...

Concept and characteristics of luminous fiber

Luminous fiber, also known as rare earth luminescent fiber, refers to rare earth luminescent materials as light source. High-tech fiber with automatic light absorption-light storage-light emission performance at night made by special spinning process. The fiber has excellent performance of emitting light at night. As long as it absorbs any visible light for 10min, it can be excited to store the absorbed light energy in the fiber, and it can continue to emit light for more than 10 hours in...

Monday October 13th, 2025Other ArticlesRead more...

Luminescence principle of upconversion luminescent materials

1. What is upconversion luminescence? Stokes law holds that materials can only be excited by high-energy light and emit low-energy light, that is, when excited by light with short wavelength and high frequency, materials emit light with long wavelength and low frequency. Up-conversion luminescence is the opposite. Up-conversion luminescence refers to the type of luminescence that continuously absorbs two or more photons, resulting in the emission wavelength being shorter than the excitation wavelength. We also call it Anti-Stokes. Up-conversion luminescence is...

Friday May 16th, 2025Other ArticlesRead more...

Study on Rare Earth Luminescent Materials

The special electronic configuration of rare earth elements makes it a treasure house of new materials, and rare earth luminescent materials are colorful treasures in this treasure house. The luminescent properties of rare earth ions mainly depend on the properties of 4f shell electrons of rare earth ions. The general electronic configuration of rare earth ions is (Xe) (4f) n (5s) 2 (5p). With the change of 4f shell electron number, rare earth ions show different electronic transition forms...

Tuesday February 18th, 2025Other ArticlesRead more...

The advantages of rare earth luminescent materials

1. Narrow band, high color purity The narrow band width of rare earth luminous materials means that their luminous color is more pure and the color purity is higher. As a result, they perform well in applications that require high color purity light sources, such as full-color displays, lasers, etc. 2. Strong light absorption Rare earth luminescent materials usually have a strong light absorption capacity, which means that they are able to efficiently convert light energy into other forms of energy, such...

Saturday January 18th, 2025Other ArticlesRead more...