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Bismuth ion (Bi3+) sensitized, europium ion (Eu3+) activated La2Zr2O7 nanophosphors are prepared successfully by simple wet chemical method. Strong blue emission of singly doped La2Zr2O7 with Bi3+ was observed at 310 nm excitation, its wide emission spectrum has a peak maximum at 465 nm ascribed to electronic transition 3P1 → 1S0 of Bi3+. The recorded photoluminescence spectra of y at% Eu3+ codoped...