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Effect of printing parameters and annealing on organic photovoltaics performance

Published online by Cambridge University Press:  09 July 2012

Amrita Haldar*
Affiliation:
Department of Physics, Institute for NanoEnergy, University of Houston, Houston, Texas 77204
Kang-Shyang Liao
Affiliation:
Department of Physics, Institute for NanoEnergy, University of Houston, Houston, Texas 77204
Seamus A. Curran
Affiliation:
Department of Physics, Institute for NanoEnergy, University of Houston, Houston, Texas 77204
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

In this paper, ink-jet printing was used to deposit poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester blend as active layer and a comparison study of three printing methods [multiarray (MA), single layer array, and multilayer array] was performed. For organic photovoltaics (OPVs) fabricated using MA or multilayer arrays, the efficiency was less than 1% independent of printing parameters. When single layer print pattern was used, the device performance improved significantly and an efficiency of 1.29% was obtained, indicating that the thin films fabricated using a single layer are more suitable for OPVs than films obtained by overlapping of multiple layers. The influence of annealing parameters on electrical and optical thin film properties was also investigated. The study found that the optimum annealing condition for the printed OPVs is solvent annealing at 60 °C, yielding an efficiency of 1.99%.

Type
Articles
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

1.Burroughes, J.H., Bradley, D.D.C., Brown, A.R., Marks, R.N., Mackay, K., Friend, R.H., Burns, P.L., and Holmes, A.B.: Light-emitting diodes based on conjugated polymers. Nature 347, 539 (1990).CrossRefGoogle Scholar
2.Sariciftci, N.S., Smilowitz, L., Heeger, A.J., and Wudl, F.: Photoinduced electron-transfer from a conducting polymer to buckminsterfullerene. Science 258, 1474 (1992).Google Scholar
3.Roth, S., Blumentritt, S., Burghard, M., Cammi, E., Carroll, D., Curran, S., Dusberg, G., Liu, K., Muster, J., Philipp, G., and Rabenau, T.: Molecular rectifiers and transistors based on pi-conjugated materials. Synth. Met. 94, 105 (1998).Google Scholar
4.Liao, K-S., Yambem, S.D., Haldar, A., Alley, N.J., and Curran, S.A.: Designs and architectures for the next generation of organic solar cells. Energies 3, 1212 (2010).Google Scholar
5.Kawase, T., Shimoda, T., Newsome, C., Sirringhaus, H., and Friend, R.H.: Inkjet printing of polymer thin film transistors. Thin Solid Films 438439, 279 (2003).Google Scholar
6.de Gans, B.J., Duineveld, P.C., and Schubert, U.S.: Inkjet printing of polymers: State of the art and future developments. Adv. Mater. 16, 203 (2004).Google Scholar
7.Singh, M., Haverinen, H.M., Dhagat, P., and Jabbour, G.E.: Inkjet printing-process and its applications. Adv. Mater. 22, 673 (2010).Google Scholar
8.Haldar, A., Yambem, S.D., Liao, K-S., Alley, N.J., Dillon, E.P., Barron, A.R., and Curran, S.A.: Organic photovoltaics using thin gold film as an alternative anode to indium tin oxide. Thin Solid Films 519, 6169 (2011).Google Scholar
9.Yambem, S.D., Liao, K-S., and Curran, S.A.: Flexible Ag electrode for use in organic photovoltaics. Sol. Energy Mater. Sol. Cells 95, 3060 (2011).Google Scholar
10.Curran, S., Talla, J., Dias, S., and Dewald, J.: Microconcentrator photovoltaic cell (the m-C cell): Modeling the optimum method of capturing light in an organic fiber based photovoltaic cell. J. Appl. Phys. 104, 064305 (2008).Google Scholar
11.Yambem, S.D., Liao, K-S., and Curran, S.A.: Enhancing current density using vertically oriented organic photovoltaics. Sol. Energy Mater. Sol. Cells 101, 227 (2012).Google Scholar
12.Alley, N.J., Dias, S., Liao, K-S., and Curran, S.A.: Fabrication, characterization, and optical modeling of a new architecture for organic photovoltaics: The vertically orientated stack device. J. Appl. Phys. 111, 064914 (2012).Google Scholar
13.Hoth, C.N., Choulis, S.A., Schilinsky, P., and Brabec, C.J.: High photovoltaic performance of inkjet printed polymer: Fullerene blends. Adv. Mater. 19, 3973 (2007).Google Scholar
14.Aernouts, T., Aleksandrov, T., Girotto, C., Genoe, J., and Poortmans, J.: Polymer based organic solar cells using ink-jet printed active layers. Appl. Phys. Lett. 92, 033306 (2008).CrossRefGoogle Scholar
15.Eom, S.H., Senthilarasu, S., Uthirakumar, P., Yoon, S.C., Lim, J., Lee, C., Lim, H.S., Lee, J., and Lee, S.H.: Polymer solar cells based on inkjet-printed PEDOT: PSS layer. Org. Electron. 10, 536 (2009).Google Scholar
16.Lee, J.K., Lee, U.J., Kim, M-K., Lee, S.H., and Kang, K-T.: Direct writing of semiconducting polythiophene and fullerene derivatives composite from bulk heterojunction solar cell by inkjet printing. Thin Solid Films 519, 5649 (2011).Google Scholar
17.Tekin, E., de Gans, B-J., and Schubert, U.S.: Ink-jet printing of polymers - from single dots to thin film libraries. J. Mater. Chem. 14, 2627 (2004).Google Scholar
18.Shimoda, T., Morii, K., Seki, S., and Kiguchi, H.: Inkjet printing of light-emitting polymer displays. MRS Bull. 28(11), 821 (2003).Google Scholar
19.Deegan, R.D.: Pattern formation in drying drops. Phys. Rev. E 61, 475 (2000).CrossRefGoogle Scholar
20.Lenes, M., Koster, L.J.A., Mihailetchi, V.D., and Blom, P.W.M.: Thickness dependence of the efficiency of polymer: Fullerene bulk heterojunction solar cells. Appl. Phys. Lett. 88, 243502 (2006).Google Scholar
21.Moule, A.J., Bonekamp, J.B., and Meerholz, K.: The effect of active layer thickness and composition on the performance of bulk-heterojunction solar cells. J. Appl. Phys. 100, 094503 (2006).Google Scholar
22.Koster, L.J.A., Mihailetchi, V.D., Ramaker, R., and Blom, P.W.M.: Light intensity dependence of open-circuit voltage of polymer: Fullerene solar cells. Appl. Phys. Lett. 86, 123509 (2005).Google Scholar
23.Kim, M-S., Kim, B-G., and Kim, J.: Effective Variables to control the fill factor of organic photovoltaic cells. ACS Appl. Mater. Interfaces 1, 1264 (2009).Google Scholar
24.Kim, K., Liu, J., Namboothiry, M.A.G., and Carroll, D.L.: Roles of donor and acceptor nanodomains in 6% efficient thermally annealed polymer photovoltaics. Appl. Phys. Lett. 90, 163511 (2007).Google Scholar
25.Brown, P.J., Thomas, D.S., Köhler, A., Wilson, J.S., Kim, J-S., Ramsdale, C.M., Sirringhaus, H., and Friend, R.H.: Effect of interchain interactions on the absorption and emission of poly(3-hexylthiophene). Phys. Rev. B 67, 064203 (2003).Google Scholar
26.Shrotriya, V., Ouyang, J., Tseng, R.J., Li, G., and Yang, Y.: Absorption spectra modification in poly(3-hexylthiophene):methanofullerene blend thin films. Chem. Phys. Lett. 411, 138 (2005).Google Scholar
27.Sundberg, M., Inganäs, O., Stafström, S., Gustafsson, G., and Sjögren, B.: Optical absorption of poly(3-alkylthiophenes) at low temperatures. Solid State Commun. 71, 435 (1989).CrossRefGoogle Scholar
28.Li, G., Shrotriya, V., Huang, J., Yao, Y., Moriarty, T., Emery, K., and Yang, Y.: High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends. Nat. Mater. 4, 864 (2005).Google Scholar
29.Ryu, M.S., Cha, H.J., and Jang, J.: Effects of thermal annealing of polymer: Fullerene photovoltaic solar cells for high efficiency. Curr. Appl. Phys. 10, S206 (2010).Google Scholar
30.Wang, T., Pearson, A.J., Lidzey, D.G., and Jones, R.A.L.: Evolution of structure, optoelectronic properties, and device performance of polythiophene: Fullerene solar cells during thermal annealing. Adv. Funct. Mater. 21, 1383 (2011).Google Scholar