Hydrostatic-pressure dependence of the photoconductivity of single-crystal pentacene and tetracene

Zhenlin Rang; Anders Haraldsson; Dong M. Kim; P. Paul Ruden; Marshall I. Nathan; Reid J. Chesterfield; C. Daniel Frisbie

doi:10.1063/1.1410878

Hydrostatic-pressure dependence of the photoconductivity of single-crystal pentacene and tetracene

Zhenlin Rang, Anders Haraldsson, Dong M. Kim, P. Paul Ruden, Marshall I. Nathan, Reid J. Chesterfield, C. Daniel Frisbie

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Abstract

Pentacene and tetracene show readily observable photoconductivity when illuminated with light in the blue part of the visible spectrum. We measured the change of photoconductivity with hydrostatic pressure in single-crystal samples of both materials. Possible mechanisms for the observed increase in photoconductivity with pressure are discussed. We conclude that a carrier-mobility increase under pressure is most likely to cause the increase in photoconductivity in the case of pentacene. For tetracene, changes in the absorption spectrum in the range of the excitation wavelengths may also be significant. We also observe a phase transition near 0.3 GPa in tetracene, in agreement with previous results.

Original language	English (US)
Pages (from-to)	2731-2733
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	17
DOIs	https://doi.org/10.1063/1.1410878
State	Published - Oct 22 2001

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title = "Hydrostatic-pressure dependence of the photoconductivity of single-crystal pentacene and tetracene",

abstract = "Pentacene and tetracene show readily observable photoconductivity when illuminated with light in the blue part of the visible spectrum. We measured the change of photoconductivity with hydrostatic pressure in single-crystal samples of both materials. Possible mechanisms for the observed increase in photoconductivity with pressure are discussed. We conclude that a carrier-mobility increase under pressure is most likely to cause the increase in photoconductivity in the case of pentacene. For tetracene, changes in the absorption spectrum in the range of the excitation wavelengths may also be significant. We also observe a phase transition near 0.3 GPa in tetracene, in agreement with previous results.",

author = "Zhenlin Rang and Anders Haraldsson and Kim, {Dong M.} and Ruden, {P. Paul} and Nathan, {Marshall I.} and Chesterfield, {Reid J.} and Frisbie, {C. Daniel}",

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T1 - Hydrostatic-pressure dependence of the photoconductivity of single-crystal pentacene and tetracene

AU - Rang, Zhenlin

AU - Haraldsson, Anders

AU - Kim, Dong M.

AU - Ruden, P. Paul

AU - Nathan, Marshall I.

AU - Chesterfield, Reid J.

AU - Frisbie, C. Daniel

PY - 2001/10/22

Y1 - 2001/10/22

N2 - Pentacene and tetracene show readily observable photoconductivity when illuminated with light in the blue part of the visible spectrum. We measured the change of photoconductivity with hydrostatic pressure in single-crystal samples of both materials. Possible mechanisms for the observed increase in photoconductivity with pressure are discussed. We conclude that a carrier-mobility increase under pressure is most likely to cause the increase in photoconductivity in the case of pentacene. For tetracene, changes in the absorption spectrum in the range of the excitation wavelengths may also be significant. We also observe a phase transition near 0.3 GPa in tetracene, in agreement with previous results.

AB - Pentacene and tetracene show readily observable photoconductivity when illuminated with light in the blue part of the visible spectrum. We measured the change of photoconductivity with hydrostatic pressure in single-crystal samples of both materials. Possible mechanisms for the observed increase in photoconductivity with pressure are discussed. We conclude that a carrier-mobility increase under pressure is most likely to cause the increase in photoconductivity in the case of pentacene. For tetracene, changes in the absorption spectrum in the range of the excitation wavelengths may also be significant. We also observe a phase transition near 0.3 GPa in tetracene, in agreement with previous results.

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Hydrostatic-pressure dependence of the photoconductivity of single-crystal pentacene and tetracene

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