Solvent effects on performance of P3ht : pcbm organic solar cell

الملخص EN

Regioregularpoly(3-hexylthiophene)(P3HT):[6,6]-phenylC61- butyricacidmethylester (PCBM) active layer were found to significantly increase organic solar cell performance.

photovoltaic devices with three solvents, Toluene (T), Xylene (X), and co-solvent Toluene:Xylene (T:X) were fabricated.

The physical properties of these devices with different solvents are investigated.

In this paper, we find that, absorption spectrum of the blend becomes more broad with different solvents, which is highly desirable for photovoltaic devices.

Films morphology is evaluated by Atomic Force Microscopy (AFM).

X-Ray diffraction (XRD) samples and External Quantum Efficiency (EQE) measurements are also performed for the active layers.

The Power Conversion Efficiency (PCE) enhancement for the device with (T:X) is more significant than for other solvents.

With different solvents, the solar cells upon (T:X) give (PCE) of 0.176%, in contrast to 0.144% for (T), and 0.079% for (X), devices.