By virtue of enhanced photosensivity, good optical response and better thermal stability, organic-inorganic hybrid materials are contemplated as one of the alternatives for designing advanced optoelectronic devices and innovative photonic applications. A novel inorganic organic hybrid Ca2P2O7: Dy3+ phosphor has been fabricated by Pechini method. The optical property of synthesized phosphor is successfully altered by the in corporation of polystyrene sulfonic acid as capping agent in the colloidal solution. The phase purity and the average particle size of the prepared phosphor were calculated from Xray diffraction (XRD) employing Debye Scherrer method. The morphological and chemical investigations were carried out through scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) analysis. The radiative transitions are explained on the basis of Judd-Ofelt theory and on the basis of derived parameters, the radiative lifetime of persistent hybrid Ca2P2O7:Dy3+ phosphor is calculated as 5.33 ms. This paper explores the mechanism leading to high photoluminescence efficiency using organic capping additives. The photoluminescence (PL) graphs reveal broad band emission at 482 nm (blue) and 573 nm (yellow) corresponding to F-4(9/2)-H-6(15/2) and F-4(9/2)-H-6(15/2) transitions of Dy3+, respectively. The Commission International De I-Eclairage (CIE) chromaticity co-ordinates were calculated from emission spectra and the values (x,y) were approaching to standard value of white emission. The synthesized pyrophosphate phosphors can thereby account in multiple potential applications including white light emitting diodes. (C) 2015 Elsevier Ltd. All rights reserved.