ISSN:
1551-2916
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The purpose of the present study is to develop an understanding of the photoluminescence properties of Mn2+-doped zinc silicate (Zn2SiO4:Mn) phosphors, which have served as a gree-emitting phosphor in many industrial applications. Thus, several experimental techniques, such as time-resolved emission spectra, decay curves, and time-resolved photoluminescence excitation spectra, have been conducted on Zn2SiO4:Mn phosphors. The characterization has been performed in terms of dopant concentration. The decay curves, together with the characteristic decay time, in particular, are measured as a function of excitation-light wavelength, in the range of 200–520 nm. The decay behavior is strongly dependent on the excitation-light wavelength. The excitation range is categorized into three regimes: the manganese direct excitation range, below the absorption-edge (ET) energy level; the manganese ionization range, from ET to the optical band-gap energy (Eg) of Zn2SiO4; and the intergap transition range, above the Eg energy level.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1151-2916.1999.tb02155.x
Permalink