Time-resolved photocarrier generation in conjugated polymers

Arthur Dogariu; Daniel Moses; Alan J. Heeger

doi:10.1117/12.372738

Time-resolved photocarrier generation in conjugated polymers

Arthur Dogariu, Daniel Moses, Alan J. Heeger

Research output: Contribution to journal › Conference article › peer-review

Abstract

We demonstrate ultrafast (100 fs) carrier generation in poly(phenylene vinylene), PPV, and poly[2-methoxy-5-(2-ethyl-hexyloxy)-(phenylene vinylene)], MEH-PPV, by using femtosecond transient spectroscopy in the mid-IR in order to probe the infrared active vibrational active (IRAV) modes. The 10% carrier generation quantum efficiency in MEH-PPV with no electric field applied, implies primary photogeneration of charge carriers. The recombination dynamics in PPV and MEH-PPV indicate that the carrier lifetime is sensitive to the strength of the interchain interaction.

Original language	English (US)
Pages (from-to)	417-422
Number of pages	6
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3797
DOIs	https://doi.org/10.1117/12.372738
State	Published - 1999
Externally published	Yes
Event	Proceedings of the 1999 Organic Light-Emitting Materials and Devices III - Denver, CO, USA Duration: Jul 19 1999 → Jul 21 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.372738

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title = "Time-resolved photocarrier generation in conjugated polymers",

abstract = "We demonstrate ultrafast (100 fs) carrier generation in poly(phenylene vinylene), PPV, and poly[2-methoxy-5-(2-ethyl-hexyloxy)-(phenylene vinylene)], MEH-PPV, by using femtosecond transient spectroscopy in the mid-IR in order to probe the infrared active vibrational active (IRAV) modes. The 10% carrier generation quantum efficiency in MEH-PPV with no electric field applied, implies primary photogeneration of charge carriers. The recombination dynamics in PPV and MEH-PPV indicate that the carrier lifetime is sensitive to the strength of the interchain interaction.",

author = "Arthur Dogariu and Daniel Moses and Heeger, {Alan J.}",

year = "1999",

doi = "10.1117/12.372738",

language = "English (US)",

volume = "3797",

pages = "417--422",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Proceedings of the 1999 Organic Light-Emitting Materials and Devices III ; Conference date: 19-07-1999 Through 21-07-1999",

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TY - JOUR

T1 - Time-resolved photocarrier generation in conjugated polymers

AU - Dogariu, Arthur

AU - Moses, Daniel

AU - Heeger, Alan J.

PY - 1999

Y1 - 1999

N2 - We demonstrate ultrafast (100 fs) carrier generation in poly(phenylene vinylene), PPV, and poly[2-methoxy-5-(2-ethyl-hexyloxy)-(phenylene vinylene)], MEH-PPV, by using femtosecond transient spectroscopy in the mid-IR in order to probe the infrared active vibrational active (IRAV) modes. The 10% carrier generation quantum efficiency in MEH-PPV with no electric field applied, implies primary photogeneration of charge carriers. The recombination dynamics in PPV and MEH-PPV indicate that the carrier lifetime is sensitive to the strength of the interchain interaction.

AB - We demonstrate ultrafast (100 fs) carrier generation in poly(phenylene vinylene), PPV, and poly[2-methoxy-5-(2-ethyl-hexyloxy)-(phenylene vinylene)], MEH-PPV, by using femtosecond transient spectroscopy in the mid-IR in order to probe the infrared active vibrational active (IRAV) modes. The 10% carrier generation quantum efficiency in MEH-PPV with no electric field applied, implies primary photogeneration of charge carriers. The recombination dynamics in PPV and MEH-PPV indicate that the carrier lifetime is sensitive to the strength of the interchain interaction.

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DO - 10.1117/12.372738

M3 - Conference article

AN - SCOPUS:0033345176

SN - 0277-786X

VL - 3797

SP - 417

EP - 422

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Proceedings of the 1999 Organic Light-Emitting Materials and Devices III

Y2 - 19 July 1999 through 21 July 1999

ER -

Time-resolved photocarrier generation in conjugated polymers

Abstract

All Science Journal Classification (ASJC) codes

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