Abstract
In the present study Li+ co-doped ZnMoO4:Eu3+ phosphor is prepared through Polyol method. The XRD has resulted triclinic structure of the ZnMoO4 sample. TEM and HRTEM illustrate rod-like morphology of the present samples. The PL-spectra has been recorded at 266, 395 and 465 nm excitation wavelength and characteristic emission peaks of the Eu3+ ion are observed. It is observed that the alkali lithium ion fills the vacancy which might be created due to mismatching between the oxidation states of metal and lanthanide ion. In this work highest PL-intensity observed for 10 at% Li+ co-doped sample. Moreover, color purity and quantum efficiency for 10 at% Li+ co-doped sample is found to 97 % and 35 %, respectively. Judd-Ofelt parameters have been calculated for all the samples and are correlated with the observed emission. The deep red emission from Li+ co-doped ZnMoO4:Eu3+ indicates that present phosphor has potential for white light emitting diodes and bio-imaging applications.
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