Tunable optoelectronic properties of lead-free K3SbX6 (X = F, Cl, Br, I) vacancy-ordered halide perovskite: a first-principles study for UV applications

Md. Asikul Islam^a, Tanvir Al Galib, Md. Aktaruzzaman Pramanik^a, Nacer Badi^b, Noureddine Ali Elboughdiri^c, Jehan Y. Al‐Humaidi^d, Md. Ferdous Rahman^a✉

1. ^aAdvanced Energy Materials and Solar Cell Research Laboratory, Department of Electrical and Electronic Engineering, Begum Rokeya University, Rangpur 5400, Bangladesh
2. ^bDepartment of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
3. ^cChemical Engineering Department, College of Engineering, University of Ha'il, P.O. Box 2440, Ha'il 81441, Saudi Arabia
4. ^dDepartment of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. BOX 84428, Riyadh 11671, Saudi Arabia
5. ✉Corresponding author