Yearly Archives - 2025

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...

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...

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...

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...