Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T01:31:59.507Z Has data issue: false hasContentIssue false

Charge-transport in Organic Semiconductors: Probing High Mobility with Light

Published online by Cambridge University Press:  29 August 2013

Demetrio A da Silva Filho
Affiliation:
Institute of Physics, University of Brasilia, Brasília, DF, 70919-970, Brazil.
Pedro Henrique de Oliveira Neto
Affiliation:
Institute of Physics, University of Brasilia, Brasília, DF, 70919-970, Brazil.
M. Carmen Ruiz Delgado
Affiliation:
Department of Physical Chemistry, University of Málaga, Málaga, Spain.
Juan T. Lopez Navarrete
Affiliation:
Department of Physical Chemistry, University of Málaga, Málaga, Spain.
Juan Casado
Affiliation:
Department of Physical Chemistry, University of Málaga, Málaga, Spain.
Get access

Abstract

Efficient charge transport is key to the operation of the various devices based on organic semiconductors, such as OLEDs, OPVs and OFETs. Both academia and industry are investing heavily in the development of new organic materials and processing techniques to improve device performance. An important parameter to tweak is the mobility of charge carriers. Triggered by an experimental result, here we investigate whether this parameter can be probed indirectly using UV-VIS spectroscopy. This would simplify the process of characterization and optimization of the mobility in amorphous molecular films, for example.

Type
Articles
Copyright
Copyright © Materials Research Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Rivnay, J., Mannsfeld, S.C.B., Miller, C.E., Salleo, A. and Toney, M.F.: Quantitative Determination of Organic Semiconductor Microstructure from the Molecular to Device Scale. Chem Rev 112, 5488 (2012).CrossRefGoogle ScholarPubMed
Sundar, V.C., Zaumseil, J., Podzorov, V., Menard, E., Willett, R.L., Someya, T., Gershenson, M.E. and Rogers, J.A.: Elastomeric transistor stamps: Reversible probing of charge transport in organic crystals. Science 303, 1644 (2004).CrossRefGoogle ScholarPubMed
Silva, D.A. da, Kim, E.G. and Bredas, J.L.: Transport properties in the rubrene crystal: Electronic coupling and vibrational reorganization energy. Adv Mater 17, 1072 (2005).Google Scholar
Dickey, K.C., Anthony, J.E. and Loo, Y.L.: Improving organic thin-film transistor performance through solvent-vapor annealing of solution-processable triethylsilylethynyl anthradithiophene. Adv Mater 18, 1721 (2006).CrossRefGoogle Scholar
Clark, J., Chang, J.F., Spano, F.C., Friend, R.H. and Silva, C.: Determining exciton bandwidth and film microstructure in polythiophene films using linear absorption spectroscopy. Appl Phys Lett 94, 163306 (2009).CrossRefGoogle Scholar
Handa, S., Miyazaki, E., Takimiya, K. and Kunugi, Y.: Solution-processible n-channel organic field-effect transistors based on dicyanomethylene-substituted terthienoquinoid derivative. J Am Chem Soc 129, 11684 (2007).CrossRefGoogle ScholarPubMed
Becke, A.D.: A New Mixing of Hartree-Fock and Local Density-Functional Theories. J Chem Phys 98, 1372 (1993).CrossRefGoogle Scholar
Frisch, M.J.T., G. W.; Schlegel, H. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Scalmani, G.; Barone, V.; Mennucci, B.; Petersson, G. A.; Nakatsuji, H.; Caricato, M.; Li, X.; Hratchian, H. P.; Izmaylov, A. F.; Bloino, J.; Zheng, G.; Sonnenberg, J. L.; Hada, M.; Ehara, M.; Toyota, K.; Fukuda, R.; Hasegawa, J.; Ishida, M.; Nakajima, T.; Honda, Y.; Kitao, O.; Nakai, H.; Vreven, T.; Montgomery, J. A. Jr; Peralta, J. E.; Ogliaro, F.; Bearpark, M.; Heyd, J. J.; Brothers, E.; Kudin, K. N.; Staroverov, V. N.; Kobayashi, R.; Normand, J.; Raghavachari, K.; Rendell, A.; Burant, J. C.; Iyengar, S. S.; Tomasi, J.; Cossi, M.; Rega, N.; Millam, J. M.; Klene, M.; Knox, J. E.; Cross, J. B.; Bakken, V.; Adamo, C.; Jaramillo, J.; Gomperts, R.; Stratmann, R. E.; Yazyev, O.; Austin, A. J.; Cammi, R.; Pomelli, C.; Ochterski, J. W.; Martin, R. L.; Morokuma, K.; Zakrzewski, V. G.; Voth, G. A.; Salvador, P.; Dannenberg, J. J.; Dapprich, S.; Daniels, A. D.; Farkas, Ö.; Foresman, J. B.; Ortiz, J. V.; Cioslowski, J.; Fox, D. J. : Gaussian 09, Revision A.1, Gaussian (2009).Google Scholar
Sun, H., Ren, P. and Fried, J.R.: The COMPASS force field: parameterization and validation for phosphazenes. Comput Theor Polym S 8, 229 (1998).CrossRefGoogle Scholar
Janzen, D.E., Burand, M.W., Ewbank, P.C., Pappenfus, T.M., Higuchi, H., Silva, D.A. da, Young, V.G., Bredas, J.L. and Mann, K.R.: Preparation and characterization of pi-stacking quinodimethane oligothiophenes. Predicting semiconductor behavior and bandwidths from crystal structures and molecular orbital calculations. J Am Chem Soc 126, 15295 (2004).CrossRefGoogle ScholarPubMed