Efficiency optimization of lead-free CH3NH3SnI3-based perovskite solar cells through material and structural modifications

The solar cell based on CH₃NH₃SnI₃ was examined by replacing the ZnTe with 1,1-Bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC) as a hole transport layer (HTL) to increase the efficiency of this regular structure as shown in Fig. 3. TAPC is a…