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How to produce whitelight in asingle-phase host? Mengmeng ShangChunxia LiJun Lin2013 год

How to produce white light in a single-phase host?
review

Страница публикацииПубликация в OpenAlex
Аннотация: White light-emitting diodes (WLEDs) as new solid-state light sources have a greatly promising application in the field of lighting and display. So far much effort has been devoted to exploring novel luminescent materials for WLEDs. Currently the major challenges in WLEDs are to achieve high luminous efficacy, high chromatic stability, brilliant color-rending properties, and price competitiveness against fluorescent lamps, which rely critically on the phosphor properties. In recent years, numerous efforts have been made to develop single-phase white-light-emitting phosphors for near-ultraviolet or ultraviolet excitation to solve the above challenges with certain achievements. This review article highlights the current methods to realize the white light emission in a single-phase host, including: (1) doping a single rare earth ion (Eu(3+), Eu(2+) or Dy(3+)) into appropriate single-phase hosts; (2) co-doping various luminescent ions with different emissions into a single matrix simultaneously, such as Tm(3+)/Tb(3+)/Eu(3+), Tm(3+)/Dy(3+), Yb(3+)/Er(3+)/Tm(3+)etc.; (3) codoping different ions in one host to control emission color via energy transfer processes; and (4) controlling the concentration of the defect and reaction conditions of defect-related luminescent materials.
Год издания: 2013
Авторы: Mengmeng Shang, Chunxia Li, Jun Lin
Издательство: Royal Society of Chemistry
Источник: Chemical Society Reviews
Ключевые слова: Luminescence Properties of Advanced Materials, Luminescence and Fluorescent Materials, Advanced Photocatalysis Techniques
Другие ссылки: Chemical Society Reviews (HTML)
PubMed (HTML)