Carrier dynamics in α-octithiophene solids: comparison of the transient photoconductivity and excited-state absorption in single-crystal and polycrystalline film

D. Moses; J. Wang; A. Dogariu

doi:10.1103/PhysRevB.59.7715

Carrier dynamics in α-octithiophene solids: comparison of the transient photoconductivity and excited-state absorption in single-crystal and polycrystalline film

D. Moses, J. Wang, A. Dogariu

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

9 Scopus citations

Abstract

We demonstrate that the transient photoconductivity, photoluminescence, and excited-state absorption (PA) in single-crystal α-octithiophene (8T) are radically different from those in 8T-oriented polycrystalline film. These observations suggest that structural disorder in the 8T system introduces sub-band-gap energy levels that reduce the photocurrent lifetime, facilitate radiative transitions in the near-IR region, and enhance PA.

Original language	English (US)
Pages (from-to)	7715-7718
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	59
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.59.7715
State	Published - 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.59.7715

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abstract = "We demonstrate that the transient photoconductivity, photoluminescence, and excited-state absorption (PA) in single-crystal α-octithiophene (8T) are radically different from those in 8T-oriented polycrystalline film. These observations suggest that structural disorder in the 8T system introduces sub-band-gap energy levels that reduce the photocurrent lifetime, facilitate radiative transitions in the near-IR region, and enhance PA.",

author = "D. Moses and J. Wang and A. Dogariu",

year = "1999",

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AU - Dogariu, A.

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Y1 - 1999

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AB - We demonstrate that the transient photoconductivity, photoluminescence, and excited-state absorption (PA) in single-crystal α-octithiophene (8T) are radically different from those in 8T-oriented polycrystalline film. These observations suggest that structural disorder in the 8T system introduces sub-band-gap energy levels that reduce the photocurrent lifetime, facilitate radiative transitions in the near-IR region, and enhance PA.

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Carrier dynamics in α-octithiophene solids: comparison of the transient photoconductivity and excited-state absorption in single-crystal and polycrystalline film

Abstract

All Science Journal Classification (ASJC) codes

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