Research Article

Record High Efficiency Achievement under LED Light in Low Bandgap Donor-Based Organic Solar Cell through Optimal Design

Table 1

Summary of the device performance parameters (standard deviation for 8 devices) of the PTB7-Th : PC70BM active layer-based OPVs, with the PY3 HTL, deposited at different spin coating speeds.

Spin coating speed (rpm) (V) (μA/cm2)FF (%)PCEmax (PCEavg) (%)

300011.40 ()
500013.45 ()
600012.58 ()