| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5397724 | Journal of Luminescence | 2017 | 6 Pages |
Abstract
Eu2+-doped Ba3MgSi2O8 exhibited room-temperature photochromism by laser irradiation. Ultraviolet laser irradiation varied the emission color from blue to purple. The following blue-to-green laser irradiation restored the original blue emission. From the laser-wavelength dependence, it has been found that the observed emission-color variation started with an electron transition from a localized state above the valence band to the conduction band. The degree of the emission-color variation was determined by the number of electrons stably trapped near Eu2+ if Eu2+ ions were doped enough.
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Physical and Theoretical Chemistry
Authors
Yoshinori Yonezaki, Shino Takei, Kazuya Ogawa,