Use the projpwfc.x  package

https://www.quantum-espresso.org/Doc/INPUT_PROJWFC.html

• if you want to calculate pdos, you will follow a 3-step process:
• Perform an SCF, 
• Make an NSCF calculation
• Run the projpwfc.x 

Hope this helps :)

Thanks Anoop A Nair for your response. I have read few papers in which they have wonderfully explianed about the contribution of each element by looking at Phonon Projected densitydensity of states.

Yes alternatively we can explain the contribution by looking a Phonon DOS and PDOS but it would be better if we can directly calculate PHONON Projected Density of States.

You can calculate it by using Matdyn.x of the recent version of QE. Note it works well for cubic system but may be too complicated for others.

Best Regards,

Phonon calculation is implemented in Materials Square

Please refer this : https://www.materialssquare.com/blog/phonon-calculation-en