High‐temperature persistent luminescence and visual dual‐emitting optical temperature sensing in self‐activated CaNb 2 O 6 : Tb 3+ phosphor

A Novel Narrow-Band Blue-Emitting Phosphor of Bi3+-Activated Sr3Lu2Ge3O12 Based on a Highly Symmetrical Crystal Structure Used for WLEDs and FEDs

Optical data storage technology has many advantages over the traditional solid-state and magnetic storage technology, such as low cost, multi-dimensional storage, and rewritable capability. Therefore, the optical data storage technology has been in increasing demand for optical storage media. Herein, the photochromic and photoluminescence properties of BaMgSiO4:Bi3+ ceramics were investigated. The BaMgSiO4:Bi3+ ceramics showed reversible photochromism from gray to pink upon alternating the 254 nm ultraviolet light and 532 nm laser irradiation. This is caused by the electron trapping and de-trapping in the oxygen vacancies of the BaMgSiO4:Bi3+ host. This reversible behavior of photochromism was applied to fabricate different patterns on the surface of the BaMgSiO4:Bi3+ ceramics, which exhibited the reversible dual-mode optical information recording and erasing abilities. The photoluminescence reversible modulation of the BaMgSiO4:Bi3+ ceramics was obtained through the photochromic phenomenon. This modification behavior of luminescence could be applied to read-out the recording information in the BaMgSiO4:Bi3+ ceramics. The coloration and bleaching of BaMgSiO4:Bi3+ ceramics were dependent on the time of light stimulation, which facilitated multiplexing encoding. This photoluminescence and photochromism multiplexing of the BaMgSiO4:Bi3+ ceramics enhanced the optical data storage capability.

/pdf/reversible-multiplexing-for-optical-information-recording-5frdyvw5bn.pdf

Reversible multiplexing for optical information recording, erasing, and reading-out in photochromic BaMgSiO4:Bi3+ luminescence ceramics

Preparation and luminescence behaviour of perovskite LaAlO3:Tb3+ nanophosphors for innovative displays

Er3+-activated LaAlO3 perovskite phosphor: Crystal structure and down conversion photoluminescent behaviour for optoelectronic devices

Near UV-pumped yellow-emitting Ca3TeO6:Dy3+ phosphor for white light-emitting diodes.

According to the current lack of voltage sag application platform, this paper puts forward the development and application of voltage sag control platform. Firstly, the functional requirement analysis is carried out for the voltage sag pain point problem existing in provincial power grid companies. Secondly, the relationship between the application of provincial grid voltage sag platform and the existing system data is analyzed. Thirdly, the implementation path of the key technologies of each functional module developed by the voltage sag platform is analyzed and related research and development are carried out. Finally, through the example analysis of a provincial power grid, it is proved that the proposed platform can effectively analyze and apply existing monitoring data and simulation data, and realize the functions of voltage sag degree evaluation, risk prediction and auxiliary governance decision on the platform.

Development and Application of Voltage Sag Control Platform

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Near UV-pumped yellow-emitting Ca3TeO6:Dy3+ phosphor for white light-emitting diodes.

Development and Application of Voltage Sag Control Platform