Dear Dr. Deepak Suthar,

you can try to use as alternative materials:

-Oxygen

Synthesis and Characterization of Oxygen Doped ZnTe for Powder Phosphor Application

Zhitao Kang, Hisham Menkara, Brent Wagner, C.J. Summers, V. Valdna

J. Mater. Res., Vol. 20, No. 9, 2510 (2005)

Available on RG at: https://www.researchgate.net/publication/228915071_Synthesis_and_Characterization_of_Oxygen_Doped_ZnTe_for_Powder_Phosphor_Application

-Arsenic

Properties of Arsenic–Doped ZnTe Thin Films as a Back Contact for CdTe Solar Cells

Ochai Oklobia, Giray Kartopu and Stuart J. C. Irvine

Materials 212, 3706 (2019) - doi:10.3390/ma12223706

Available at: wwwmdpi.com/journal/materials

-or Cu

-Pronounced Impact of p-Type Carriers and Reduction of Bandgap in Semiconducting ZnTe Thin Films by Cu Doping for Intermediate Buffer Layer in Heterojunction Solar Cells

Waqar Mahmood, Saif Ullah Awan, Amad Ud Din, unaid Ali, Muhammad Farooq Nasir, Nazakat Ali, Anwar ul Haq, Muhammad Kamran, Bushra Parveen, Muhammad Rafiq, and Nazar Abbas Shah

Materials (Basel) 12(8): 1359 (2019)

Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6515456/

Good work and best regards, Pierluigi Traverso

Look for dopants with your obectives.

See what applications you are targeting.

What study you want to carry out.

Sir,

U can try with arsenic, oxygen, Nitrogen, argon.