^aDepartment of Electronics and Communication Engineering, Chandigarh

Engineering College, Chandigarh Group of Colleges, Jhanjeri-140307, India

^bDepartment of Interdisciplinary Courses in Engineering, Chitkara University

Institute of Engineering and Technology, Chitkara University, India

^cDepartment of Physics, United College of Engineering and Research, Prayagraj- 211010, India

^dDepartment of Electronics and Communication Engineering, Indian Institute of Information Technology, Prayagraj-211015, India

^eDepartment of Electronics Engineering,Yeungnam University, Gyeongsan-38541, South Korea

This work presents a synthesis of ZnO quantum dots for white light emission for phosphors converted light emitted diodes, which is free from mixing of different luminescent QDs. The synthesis route is able to tune emission spectra from cool white to warm white light with the capability of filling the typical color gaps to replicate true spectral distribution with extraordinary fidelity and maximized the color gamut. ZnO QDs- based highly porous phosphor plate compatible for the lighting technology to maintain the individual identity of QDs is presented along with the demonstration of white LEDs from cool to warm white light.