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

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

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

107 Citations (Scopus)

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 20K, 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.

Original language	English
Article number	162101
Number of pages	3
Journal	Applied physics letters
Volume	88
DOIs	https://doi.org/10.1063/1.2193801
Publication status	Published - 17 Apr 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 20K, 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.",

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

year = "2006",

month = apr,

day = "17",

doi = "10.1063/1.2193801",

language = "English",

volume = "88",

journal = "Applied physics letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

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

AU - Ostroverkhova, O.

AU - Cooke, D.G.

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 - 2006/4/17

Y1 - 2006/4/17

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 20K, 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.

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 20K, 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.

U2 - 10.1063/1.2193801

DO - 10.1063/1.2193801

M3 - Article

VL - 88

JO - Applied physics letters

JF - Applied physics letters

SN - 0003-6951

M1 - 162101

ER -

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

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