Organic semiconductor composites: Influence of additives on the transient photocurrent

Jonathan Day; Andrew D. Platt; Oksana Ostroverkhova; Sankar Subramanian; John E. Anthony

doi:10.1063/1.3062850

Organic semiconductor composites: Influence of additives on the transient photocurrent

Jonathan Day, Andrew D. Platt, Oksana Ostroverkhova, Sankar Subramanian, John E. Anthony

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

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.

Original language	English
Article number	013306
Journal	Applied Physics Letters
Volume	94
Issue number	1
DOIs	https://doi.org/10.1063/1.3062850
State	Published - 2009

Bibliographical note

Funding Information:
We thank Professor Y.-S. Lee and J. Tomaino for technical assistance. This work was supported in part by the Petroleum Research Fund, ONR (directly and via ONAMI Nanometrology and Nanoelectronics Initiative Grant No. N00014-07-1-0457), and NSF via CAREER program (Contract No. DMR-0748671).

Funding

We thank Professor Y.-S. Lee and J. Tomaino for technical assistance. This work was supported in part by the Petroleum Research Fund, ONR (directly and via ONAMI Nanometrology and Nanoelectronics Initiative Grant No. N00014-07-1-0457), and NSF via CAREER program (Contract No. DMR-0748671).

Funders	Funder number
National Science Foundation (NSF)	DMR-0748671
Office of Naval Research	N00014-07-1-0457
American Chemical Society Petroleum Research Fund

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Organic semiconductor composites: Influence of additives on the transient photocurrent",

abstract = "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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note = "Funding Information: We thank Professor Y.-S. Lee and J. Tomaino for technical assistance. This work was supported in part by the Petroleum Research Fund, ONR (directly and via ONAMI Nanometrology and Nanoelectronics Initiative Grant No. N00014-07-1-0457), and NSF via CAREER program (Contract No. DMR-0748671).",

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AU - Day, Jonathan

AU - Platt, Andrew D.

AU - Ostroverkhova, Oksana

AU - Subramanian, Sankar

AU - Anthony, John E.

N1 - Funding Information: We thank Professor Y.-S. Lee and J. Tomaino for technical assistance. This work was supported in part by the Petroleum Research Fund, ONR (directly and via ONAMI Nanometrology and Nanoelectronics Initiative Grant No. N00014-07-1-0457), and NSF via CAREER program (Contract No. DMR-0748671).

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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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Organic semiconductor composites: Influence of additives on the transient photocurrent

Abstract

Bibliographical note

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