International Journal of Chemical Studies
Vol. 2, Issue 5 (2015)
Performance enhancement of P3HT:Fullerene solar cells by varying weight ratios
Author(s): Abdullah A. Hussein., Waleed A. Hussain and Hussein F. Al-luaiby
Abstract: Gold nanoparticles (AuNPs) deposited at the interface of the hole-collecting buffer layer [poly(3,4ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)] and regioregular poly(3-hexylthiophene):[6,6]-phenylC61-butyricacidmethylester (rr-P3HT): (PCBM) active layer were found to significantly increase organic solar cell performance. Organic solar cell devices were fabricated with weight ratio 1:0.7, 1:0.8, 1:0.9 and 1:1. of P3HT and PCBM, respectively. The photo-physical properties of these devices with varying weight ratios are investigated. We find that, absorption spectrum of the blend becomes broad with ratio varying, which is highly desirable for an organic solar cell devices. Film morphology is evaluated by atomic force microscopy (AFM). XRD patterns and External quantum efficiency (EQE) Measurements are also performed for the best device. The efficiency enhancement for the device with 1:1 is more significant than for 1:0.9, 1:0.8 and 1:0.7 weight ratios of P3HT and PCBM. With varying weight ratios, the solar cells upon (1:1) give Power Conversion Efficiency (PCE) of 3.01%, in contrast to 2.6% for (1:0.9), 2.01% for (1:0.8) and % 1:0.7 devices.
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Pages: 39-45 | 1154 Views 15 Downloads
How to cite this article:
Abdullah A. Hussein., Waleed A. Hussain, Hussein F. Al-luaiby. Performance enhancement of P3HT:Fullerene solar cells by varying weight ratios. Int J Chem Stud 2015;2(5):39-45.