Ultrafast carrier dynamics in pentacene, functionalized pentacene, tetracene, and rubrene single crystals

O. Ostroverkhova; David Cooke; F. A. Hegmann; J. E. Anthony; V. Podzorov; M. E. Gershenson; O. D. Jurchescu; T. T. M. Palstra

doi:10.1063/1.2193801

Ultrafast carrier dynamics in pentacene, functionalized pentacene, tetracene, and rubrene single crystals

O. Ostroverkhova, David Cooke, F. A. Hegmann, J. E. Anthony, V. Podzorov, M. E. Gershenson, O. D. Jurchescu, T. T. M. Palstra

Research output: Contribution to journal › Journal article › Research

Abstract

We measure the transient photoconductivity in pentacene, functionalized pentacene, tetracene, and rubrene single crystals using optical pump-terahertz probe techniques. In all of the samples studied, we observe subpicosecond charge photogeneration and a peak photoconductive response that increases as the temperature decreases from 297 down to 20 K, indicative of bandlike transport. Similar decay dynamics are observed at room temperature, but at low temperatures the decay dynamics measured in pentacene, rubrene, and tetracene crystals are much faster than those observed in functionalized pentacene crystals, revealing different charge trapping properties. (c) 2006 American Institute of Physics.

Original language	English
Journal	Applied Physics Letters
Volume	88
Issue number	16
Pages (from-to)	162101
ISSN	0003-6951
DOIs	https://doi.org/10.1063/1.2193801
Publication status	Published - 2006
Externally published	Yes

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title = "Ultrafast carrier dynamics in pentacene, functionalized pentacene, tetracene, and rubrene single crystals",

abstract = "We measure the transient photoconductivity in pentacene, functionalized pentacene, tetracene, and rubrene single crystals using optical pump-terahertz probe techniques. In all of the samples studied, we observe subpicosecond charge photogeneration and a peak photoconductive response that increases as the temperature decreases from 297 down to 20 K, indicative of bandlike transport. Similar decay dynamics are observed at room temperature, but at low temperatures the decay dynamics measured in pentacene, rubrene, and tetracene crystals are much faster than those observed in functionalized pentacene crystals, revealing different charge trapping properties. (c) 2006 American Institute of Physics. ",

author = "O. Ostroverkhova and David Cooke and Hegmann, {F. A.} and Anthony, {J. E.} and V. Podzorov and Gershenson, {M. E.} and Jurchescu, {O. D.} and Palstra, {T. T. M.}",

year = "2006",

doi = "10.1063/1.2193801",

language = "English",

volume = "88",

pages = "162101",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Ultrafast carrier dynamics in pentacene, functionalized pentacene, tetracene, and rubrene single crystals

AU - Ostroverkhova, O.

AU - Cooke, David

AU - Hegmann, F. A.

AU - Anthony, J. E.

AU - Podzorov, V.

AU - Gershenson, M. E.

AU - Jurchescu, O. D.

AU - Palstra, T. T. M.

PY - 2006

Y1 - 2006

N2 - We measure the transient photoconductivity in pentacene, functionalized pentacene, tetracene, and rubrene single crystals using optical pump-terahertz probe techniques. In all of the samples studied, we observe subpicosecond charge photogeneration and a peak photoconductive response that increases as the temperature decreases from 297 down to 20 K, indicative of bandlike transport. Similar decay dynamics are observed at room temperature, but at low temperatures the decay dynamics measured in pentacene, rubrene, and tetracene crystals are much faster than those observed in functionalized pentacene crystals, revealing different charge trapping properties. (c) 2006 American Institute of Physics.

AB - We measure the transient photoconductivity in pentacene, functionalized pentacene, tetracene, and rubrene single crystals using optical pump-terahertz probe techniques. In all of the samples studied, we observe subpicosecond charge photogeneration and a peak photoconductive response that increases as the temperature decreases from 297 down to 20 K, indicative of bandlike transport. Similar decay dynamics are observed at room temperature, but at low temperatures the decay dynamics measured in pentacene, rubrene, and tetracene crystals are much faster than those observed in functionalized pentacene crystals, revealing different charge trapping properties. (c) 2006 American Institute of Physics.

U2 - 10.1063/1.2193801

DO - 10.1063/1.2193801

M3 - Journal article

SN - 0003-6951

VL - 88

SP - 162101

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

ER -

Ultrafast carrier dynamics in pentacene, functionalized pentacene, tetracene, and rubrene single crystals

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