Broad-band sensitized visible up-conversion in Y₂Mg₃Ge₃O₁₂:Ni²⁺,Er³⁺,Nb⁵⁺ phosphors

Abstract

Ni2+, Er3+, Nb5+ tri-doped Y2Mg3Ge3O12 phosphors have been fabricated by conventional solid-phase reaction method. Near infrared light in the wavelength range of 900–1700 nm can be up-converted by the phosphors...

Infrared to green conversion of long persistent luminescent Eu2+-Dy3+ Co-doped SrAl2O4

“…The conversion from the photons with long wavelength into those with short wavelength is considered as a possible way to improve the solar cell's performance [4][5][6]. Due to the huge amount of long wavelength infrared photons in sunlight, the investigation about spectral conversion materials has become active in recent years [7][8][9].…”