Abstract
A modified method to synthesize the new laser upconversion material Ba2ErCl7 using Er2O3, BaCl2·2H2O and NH4Cl is reported for the first time in this paper. Single crystals up to 5-8 mm in diameter and 10-20 mm in length have been grown by Czochralski method. The transmittance spectra of Ba2ErCl7 single crystal has first been measured by using an HITACHI U-3500 spectrophotometer. There are three intense absorption peaks 4I9/2, 4I11/2 and 4I13/2 in the infrared range which can be excited by 803 nm, 980 nm and 1.5 μm laser diodes (LDs), respectively. The cut-off wavelength of the crystal is 230 nm. Intense green luminescence can be observed when the crystal is pumped by a LD at 803 nm. The formation of the defects is also discussed.
Original language | English (US) |
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Pages (from-to) | 195-200 |
Number of pages | 6 |
Journal | Progress in Crystal Growth and Characterization of Materials |
Volume | 40 |
Issue number | 1 |
DOIs | |
State | Published - Jan 6 2000 |
Event | 5th IUMRS International Conference on Advanced Materials, Symposium L: Science and Technology of Artificial Crystals (IUMRS-ICAM'99) - Beijing, China Duration: Jun 13 1999 → Jun 18 1999 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics