Effect of 1,8-Diiodooctane on the Performance of P3HT:PCBM Solar Cells
Tóm tắt
Effect of 1,8-diiodooctane on the performance of poly(3-hexylthiophene) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) solar cells with glass/indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/P3HT: PCBM/Ca/Al structure was studied. The morphology and thickness of the active layer were investigated using atomic force microscopy (AFM). The UV-visible spectroscopy and X-ray diffraction (XRD) analysis were used to study the absorption behavior (of the solutions and coated layers) and crystallinity of the active layer, respectively. The results show that the existence of 1,8-diiodooctane reduced the open circuit voltage from 0.81 to 0.52 V and increased the short circuit current by about three folds; the fill factor (FF) and power conversion efficiency were increased from 36.0 to 54.1% and 0.47% to 1.54%, respectively. These changes can be attributed to the enhanced crystallinity of P3HT or the doping effect of 1,8-diiodooctane on P3HT chains. UV-visible analysis demonstrated that the addition of 1,8-diiodooctane to the solution did not change the absorption onset, whereas in the coated layers, the maximum absorption peak shifted to higher wavelengths. The XRD analyses demonstrated the enhancement of crystallinity of P3HT upon the introduction of 1,8-diiodooctane.
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2003, Effects of Postproduction Treatment on Plastic Solar Cells, Adv. Funct. Mater., 13, 85
2001, Plastic Solar Cells, Adv. Funct. Mater., 11, 15, 10.1002/1616-3028(200102)11:1<15::AID-ADFM15>3.0.CO;2-A
2004, Organic Photovoltaics: Technology and Market, Sol. Energy Mater. Sol. Cells, 83, 273
1995, Polymer Photovoltaic Cells: Enhanced Efficiencies Via a Network of Internal Donor-Acceptor Heterojunctions, Science, 270, 1789, 10.1126/science.270.5243.1789
2011, Solar Cell Efficiency Tables Version 37, Prog. Photovoltaics: Res. Appl., 19, 84, 10.1002/pip.1088
2010, Polymer–Fullerene Bulk-Heterojunction Solar Cells, Adv. Mater., 22, 3839, 10.1002/adma.200903697
2005, High-Efficiency Solution Processable Polymer Photovoltaic Cells by Self-Organization of Polymer Blends, Nature Mater., 4, 864, 10.1038/nmat1500
2008, Processing Additives for Improved Efficiency from Bulk Heterojunction Solar Cells, J. Am. Chem. Soc., 130, 3619, 10.1021/ja710079w
2008, Controlling Morphology in Polymer-Fullerene Mixtures, Adv. Mater., 20, 240, 10.1002/adma.200701519
2006, Morphology of Polymer/Fullerene Bulk Heterojunction Solar Cells, J. Mater. Chem., 16, 45, 10.1039/B510618B
2014, An Efficient Triple-Junction Polymer Solar Cell Having a Power Conversion Efficiency Exceeding 11%, Adv. Mater., 26, 5670, 10.1002/adma.201402072
2013, A Polymer Tandem Solar Cell With 10.6% Power Conversion Efficiency, Nature Commun., 4
2014, Synthesis of Nanoparticles of P3HT and PCBM for Optimizing Morphology in Polymeric Solar Cells, Appl. Surf. Sci., 323, 13, 10.1016/j.apsusc.2014.07.175
2013, Poly(3-Hexylthiophene) Nanofiber Networks for Enhancing the Morphology Stability of Polymer Solar Cells, Org. Electron., 14, 1383, 10.1016/j.orgel.2013.02.032
2013, Influence of Mixed Solvent on the Morphology of the P3ht:Indene-C60 Bisadduct (Icba) Blend Film and the Performance of Inverted Polymer Solar Cells, Org. Electron., 14, 26, 10.1016/j.orgel.2012.10.015
2014, Effects of Different Polar Solvents for Solvent Vapor Annealing Treatment on the Performance of Polymer Solar Cells, Org. Electron., 15, 2647, 10.1016/j.orgel.2014.07.026
2013, Solvent–Vapor Induced Morphology Reconstruction for Efficient Pcdtbt Based Polymer Solar Cells, Org. Electron., 14, 2278, 10.1016/j.orgel.2013.05.014
2015, P3HT:PC61BM Based Solar Cells Employing Solution Processed Copper Iodide as the Hole Transport Layer, Solar Energy Mater. Solar Cells, 133, 255, 10.1016/j.solmat.2014.11.004
2015, Natural Drying Effect on Active Layer for Achieving High Performance in Polymer Solar Cells, Renewable Energy, 74, 11, 10.1016/j.renene.2014.07.034
2008, 1,8-Octanedithiol as a Processing Additive for Bulk Heterojunction Materials: Enhanced Photoconductive Response, Appl. Phys. Lett., 93, 072105, 10.1063/1.2969405
2008, Effects of Solvent Mixtures on the Nanoscale Phase Separation in Polymer Solar Cells, Adv. Funct. Mater., 18, 1783, 10.1002/adfm.200701459
2009, Fast-Grown Interpenetrating Network in Poly(3-Hexylthiophene): Methanofullerenes Solar Cells Processed With Additive, J. Phys. Chem. C, 113, 7946, 10.1021/jp810798z
2005, Correlation Between Structural and Optical Properties of Composite Polymer/Fullerene Films for Organic Solar Cells, Adv. Funct. Mater., 15, 1193, 10.1002/adfm.200400521
2000, Structural Anisotropy of Poly(Alkylthiophene) Films, Macromolecules, 33, 3120, 10.1021/ma991631k
1992, X-Ray Structural Studies of Poly(3-Alkylthiophenes): An Example of an Inverse Comb, Macromolecules, 25, 4364, 10.1021/ma00043a019