Submicron-sized phosphors based on hexagonal rare earth oxycarbonate for near-infrared excitation and emission
نویسندگان
چکیده
منابع مشابه
Emission and Excitation Mechanisms of Phosphors
In this chapter, basic concepts involved in luminescencewill be discussed.Wewill take a closer look at a number of excitation mechanisms which are involved in generating luminescence and processes which lead to luminescence, taking illustrative examples from luminescentmaterials applied in fluorescent lamps and cathode ray tubes.With respect to fluorescent lamps, we will restrict ourselves to d...
متن کاملA Wavelength Standard for the Near Infrared Based on the Reflectance Of Rare-Earth Oxides
This work describes the techniques used to prepare and analyze a reflectance wavelength standard composed of three rare-earth oxides. A mixture of dysprosium oxide (DY20.1), erbium oxide (Er203). and holmium oxide (Ho20) provides a pressed powder specimen exhibiting a near infrared reflectance spectrum characterized by many discrete absorption minima in the wavelength range 700 to 2000 urn. The...
متن کاملRare Earth doped Semiconductors for Phosphors and Lasers
The emission properties of rare earth (RE)-doped GaN are of significant current interest for applications in full color displays, white lightingtechnology, and optical communications. We are currently investigating the photoluminescence (PL) properties of RE (Er, Eu, Tm)-dopedGaN thin-films prepared by solid-source molecular beam epitaxy. The most intense visible PL under above-gap exci...
متن کاملRare earth ion implantation for silicon based light emission: From infrared to ultraviolet
Using ion implantation different rare earth luminescent centers (Gd, Tb, Eu, Ce, Tm, Er) were incorporated into the silicon dioxide layer of a purpose-designed Metal Oxide Silicon (MOS) capacitor with advanced electrical performance, further called a MOS-light emitting device (MOSLED). The silicon dioxide layer did not contain silicon nanoclusters. Efficient electroluminescence was obtained fro...
متن کاملPhotoluminescence and Thermoluminescence Properties of Rare Earth Doped CaAl2Si2O8 phosphors
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract Tbe doped Calcium alumino silicate (CaAl2Si2O8) phosphor was synthesized by combustion method at initiating temperature of 7000C, using urea as a reducer. XRD, Thermoluminescences, absorption spectra, FTIR and Thermoluminescences spectra were recor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Asian Ceramic Societies
سال: 2019
ISSN: 2187-0764
DOI: 10.1080/21870764.2019.1673137