VUV spectroscopic properties of Ba2Gd2Si 4O13:Re3+ (Re3+ = Ce3+, Tb3+, Dy3+, Eu3+, Sm3+)

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The vacuum ultraviolet spectroscopic properties of Ba2Gd 2Si4O13:Re3+ (Re3+ = Ce3+, Tb3+, Dy3+, Eu3+, Sm 3+) are investigated in detail for the first time. The host absorption band is determined to be around 171 nm, and the f-d transition bands as well as the charge transfer bands are assigned and corroborated. Upon 172 nm excitation, Ce3+ activated Ba2Gd2Si 4O13 shows blue emission due to 5d-4f transition of Ce3+. Ba2Gd2Si4O13: Tb3+ exhibits green emission attributed to the excitation state levels 5D3 and 5D4 to 7Fj ground state levels. For Dy3+-doped sample, it reveals white light emission combining 4F9/2 → 6HJ (J = 15/2, 13/2, 11/2) transitions. Eu3+ and Sm3+ in the host display red light emissions with the dominated emission peaks at 612 and 601 nm, respectively. Among these phosphors, Ba 2Gd2Si4O13:Eu3+ can be a potential candidate for 172 nm excited red phosphors considering the suitable location of absorption band, good color purity, and intense luminescence. © 2013 Elsevier Ltd.




Zhang, F., Wang, Y., & Tao, Y. (2013). VUV spectroscopic properties of Ba2Gd2Si 4O13:Re3+ (Re3+ = Ce3+, Tb3+, Dy3+, Eu3+, Sm3+). Materials Research Bulletin, 48(5), 1952–1956.

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