Author/Authors :
Zhou، نويسنده , , Xianju and Tanner، نويسنده , , Peter A. and Duan، نويسنده , , Changkui and Cheng، نويسنده , , Bing-ming، نويسنده ,
Abstract :
The room temperature downconversion emission of Er3+ in the low phonon energy, low band-gap host Cs2NaErCl6 upon synchrotron radiation excitation is rationalized. Energy transfer cross-relaxation schemes are proposed following the interpretation of the vacuum ultraviolet and ultraviolet excitation and emission spectra. The highest energy emission from Er3+ occurs from the 2I11/2 multiplet term (∼40600 cm−1). The behaviour of Er3+ in Cs2NaYCl6:Er3+ is also discussed and interpreted.
