fig4
Figure 4. Structural and photoresponse influences of 3-TFMBAI doping ratios. (A) XRD patterns (peaks labeled with “#” are derived from FTO), (B) UV-vis spectra, (C) (Ahv)2vs.hv curves and (D) typical J-V plots of quasi-2D perovskites with different 3-TFMBAI doping concentrations (n = 10, 20, 40 and 60).
