“…and improving the physical properties of the CdZnTe absorber layers. Furthermore, CdZnTe material-based thin films are potential candidates for a wide variety of applications such as detectors, [23][24][25][26][27][28] nano wires, 29 substrates, [30][31][32][33][34] and tandem solar cells, [35][36][37][38][39][40][41] which can be applied as the top block, while Si-based, CIGS, organic or perovskite sub cells are potential bottom blocks for the development of multi-junction or tandem devices. Similar to CdZnTe, the band gap and associated properties of perovskite Table 1 Renewable energy capacity (in MW) based on PVs in the last ten years worldwide, 7 where the data indicate a continuous enhancement in installed capacity…”