Organic semiconductor composites: influence of additives on the transient photocurrent Public Deposited

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Article appears in Applied Physics Letters ( http://apl.aip.org/) and is copyrighted by American Institute of Physics ( http://www.aip.org/).

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  • We report on the effect of various guest molecules added to a functionalized anthradithiophene (ADT) host on photoexcited charge carrier dynamics in solution-deposited thin films, from ~100 ps to >100 μs after photoexcitation with 100 fs laser pulses. An addition of 2 and 5 wt % of C60 to a fluorinated ADT derivative, ADT-TES-F, resulted in transient photocurrent amplitude enhancement by a factor of ~3 and 10, respectively. In contrast, an addition of 10 wt % of another ADT derivative, ADT-TIPS-CN, or a functionalized pentacene derivative (TIPS pentacene) to ADT-TES-F led to a decrease in the amplitude by a factor of ~3–4 and dramatically different photocurrent dynamics.
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  • Day, J., Platt, A. D., Ostroverkhova, O., Subramanian, S., & Anthony, J. E. (2009). Organic semiconductor composites: Influence of additives on the transient photocurrent [Electronic version]. Applied Physics Letters, 94(1).
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  • description.provenance : Made available in DSpace on 2010-01-25T17:50:50Z (GMT). No. of bitstreams: 1 ApplPhysLett_94_013306.pdf: 302065 bytes, checksum: 60d36443b3aa3bf47fcba9d3f6458ba0 (MD5) Previous issue date: 2009-01-09
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