Physics
Scientific paper
Oct 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009chphb..18.4532h&link_type=abstract
Chinese Physics B, Volume 18, Issue 10, pp. 4532-4535 (2009).
Physics
Scientific paper
Novel Dy3+-doped GdPO4 white light phosphors with monoclinic system were successfully synthesised by hydrothermal method at 240 °C. This paper investigates the luminescence properties of white-light Gd1-xPO4:xDy3+ under vacuum ultraviolet (VUV) excitation. The strong absorption at around 147 nm in excitation spectrum energy can be transferred to the energy levels of Dy3+ ion from the host absorption. Additionally, this white light phosphors are activated by a single Dy3+ ion and with a lower preparation temperature, which tend to decrease the consumption of rare earth resource and energy. Therefore, the luminescence of Gd1-xPO4:xDy3+ under VUV excitation is effective, and proves to be promising in application to mercury-free lamp.
Han Guo-Cai
Wang Yu-Hua
Wu Chun-Fang
Zhang Jia-Chi
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