The excitation spectrum indicates that the phosphor can be well excited by UV and blue light from 300 to 460 nm, and the phosphor was fitted well for the excitation by UV or blue-LED.doi:10.1016/S1002-0721(07)60345-7方英庄卫东崔向中胡运生黄小卫Journal of Rare EarthsStudy on Ca8Mg(SiO4)...
2A). Previous laboratory studies of halogen production under similar but not identical conditions (i.e., light source and reaction medium) indicated that reactive bromine gases (Br2 and BrCl) were produced over acid-doped nitrate-halide solution (liquid or frozen) under UV light (~310 nm)...
The calculations suggest that 1 is a direct bandgap semiconductor with relatively small effective carrier mass along the in-plane direction, consistent with the experimentally observed in-plane UV-light photoresponse. We also demonstrate that 1 is promising for radiation detection capable of alpha-...
Previous studies have proposed two chemical mechanisms to explain the observed daytime Cl2production. The first one involves the aqueous-phase reaction of OH with chloride in the solution or at the air-water interface, with OH being produced from O3photolysis in the gas or aqueous phase (R1–R9...
One potential alternative is employing shorter wavelengths, specifically far UV-C (200–230 nm), which has been found to have enhanced efficiency in generating ·OH through the reaction with H2O218,19. The Kr/Cl2excilamp, which primarily emits radiation at a wavelength of 222 nm, has been ...
Chlorine formed as the result of the reaction gives chlorite. In neutral and weakly acidic pH, diluted solutions of ClO2 are stable. With alkaline pH decomposing ClO2 gives two salts: chlorites and chlorates in accordance with the reaction (Gordon and Feldman, 1964):(9)2...
and speed in the disinfection process while using more advanced and safer technologies. In terms of the parameters they control, most of the patents relate to the dose of the reagent used, the radiation source (whether UV or visible light), the speed of the water flow, and the exposure ...
thein-planedirection,consistentwiththeexperimentallyobservedin-planeUV-lightphotoresponse.Wealsodemonstratethat 1ispromisingforradiationdetectioncapableofα-particlecounting.Moreover,1showsmarkedlyambientandthermalstability. ■ INTRODUCTION Ruddlesden−Popper(RP)phases,withageneralformulaof A n+1 B n X 3n+1 (...
conventional solid-state reactionCa6Sr4(Si2O7)3Cl2:Eu2+ phosphor was synthesized by solid-state reactions. This phosphor can be effectively excited by ultraviolet light from 320 to 420nm. It exhibits a strong and broad band green emission excited at 360nm. Dipole–dipole interaction is the ...
提高发光强度.实验结果表明,CaSiO。C1:Eu抖是一种适用于UVLED激发的白光LED的红 色荧光粉. 关键词 发光二极管(LED);荧光粉;Eu”;氯硅酸盐 中图分类号 057 0 引 言 . t 最近几年,各种颜色的高亮度发光二极管已经取得了很大的进步,而且白光二极管器件已经由 ...