English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In the environment of advocating low-carbon economy, the development of green lighting and the potential application of rare earth luminescent light sources have always attracted much attention. In this study, aiming at the existing defects of white LED, taking the new red rare earth phosphor excited by ultraviolet light as the research object, Eu 3+  doped NaLa(WO 4 ) 2 :0.08Eu 3+  phosphors samples were prepared by microwave method. The prepared samples were characterized by x-ray diffraction (XRD), scanning electron microscope (SEM), fluorescence spectrum (PL), CIE color coordinates and other detection methods, and their phase composition, micro-morphology and luminescent properties were characterized. The results show that the doping of Eu 3+  does not change the crystal structure of the matrix material, and the NaLa(WO 4 ) 2 :0.08Eu 3+  phosphors is micron-sized and irregular polyhedral at room temperature. It can be excited by ultraviolet light with wavelength of 395 nm to produce red light emission. The color coordinates of NaLa(WO 4 ) 2 :0.08Eu 3+  phosphors are (0.5794, 0.308), and the manufactured device can emit white light with color coordinates of (0.3060, 0.3307). Therefore, the NaLa(WO 4 ) 2 :0.08Eu 3+  red phosphors prepared in this study is expected to be used in the preparation of white LED devices.

Preparation and properties of NaLa(WO 4 ) 2 :0.08Eu 3+ phosphors