A direct approach to study radiative emission from triplet excitations in molecular semiconductors and conjugated polymers

Jai Singh, H Baessler, S KUGLER

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    Using the recently discovered time-dependent spin-orbit-photon interaction operator and first order perturbation theory, the rate of spontaneous emission from triplet excitations is derived within the two-level approximation for organic molecular solids and conjugated polymers. The calculated rates and corresponding radiative lifetimes agree very well with the known experimental results. Present results are compared with those obtained through the traditional approach of the second order perturbation theory in some molecular crystals and found to be in better agreement with experiments. � 2008 American Institute of Physics.
    Original languageEnglish
    Pages (from-to)41103-
    JournalJournal of Chemical Physics
    Volume129
    Issue number4
    Publication statusPublished - 2008

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    Molecular crystals
    Spontaneous emission
    Conjugated polymers
    atomic energy levels
    Orbits
    Photons
    Physics
    perturbation theory
    Semiconductor materials
    polymers
    radiative lifetime
    spontaneous emission
    Experiments
    orbits
    operators
    physics
    photons
    approximation
    crystals
    interactions

    Cite this

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    title = "A direct approach to study radiative emission from triplet excitations in molecular semiconductors and conjugated polymers",
    abstract = "Using the recently discovered time-dependent spin-orbit-photon interaction operator and first order perturbation theory, the rate of spontaneous emission from triplet excitations is derived within the two-level approximation for organic molecular solids and conjugated polymers. The calculated rates and corresponding radiative lifetimes agree very well with the known experimental results. Present results are compared with those obtained through the traditional approach of the second order perturbation theory in some molecular crystals and found to be in better agreement with experiments. � 2008 American Institute of Physics.",
    keywords = "Crystallography, Crystals, Molecular crystals, Organic polymers, Perturbation techniques, Polymers, Direct approach, First order perturbation theory, Molecular semiconductors, Molecular solids, Photon interactions, Radiative emissions, Radiative lifetimes, Second-order perturbation theory, Spin orbits, Time-dependent, Two-level approximation, Conjugated polymers",
    author = "Jai Singh and H Baessler and S KUGLER",
    year = "2008",
    language = "English",
    volume = "129",
    pages = "41103--",
    journal = "Journal of Chemical Physics",
    issn = "0021-9606",
    publisher = "American Institute of Physics",
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    A direct approach to study radiative emission from triplet excitations in molecular semiconductors and conjugated polymers. / Singh, Jai; Baessler, H; KUGLER, S.

    In: Journal of Chemical Physics, Vol. 129, No. 4, 2008, p. 41103-.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - A direct approach to study radiative emission from triplet excitations in molecular semiconductors and conjugated polymers

    AU - Singh, Jai

    AU - Baessler, H

    AU - KUGLER, S

    PY - 2008

    Y1 - 2008

    N2 - Using the recently discovered time-dependent spin-orbit-photon interaction operator and first order perturbation theory, the rate of spontaneous emission from triplet excitations is derived within the two-level approximation for organic molecular solids and conjugated polymers. The calculated rates and corresponding radiative lifetimes agree very well with the known experimental results. Present results are compared with those obtained through the traditional approach of the second order perturbation theory in some molecular crystals and found to be in better agreement with experiments. � 2008 American Institute of Physics.

    AB - Using the recently discovered time-dependent spin-orbit-photon interaction operator and first order perturbation theory, the rate of spontaneous emission from triplet excitations is derived within the two-level approximation for organic molecular solids and conjugated polymers. The calculated rates and corresponding radiative lifetimes agree very well with the known experimental results. Present results are compared with those obtained through the traditional approach of the second order perturbation theory in some molecular crystals and found to be in better agreement with experiments. � 2008 American Institute of Physics.

    KW - Crystallography

    KW - Crystals

    KW - Molecular crystals

    KW - Organic polymers

    KW - Perturbation techniques

    KW - Polymers

    KW - Direct approach

    KW - First order perturbation theory

    KW - Molecular semiconductors

    KW - Molecular solids

    KW - Photon interactions

    KW - Radiative emissions

    KW - Radiative lifetimes

    KW - Second-order perturbation theory

    KW - Spin orbits

    KW - Time-dependent

    KW - Two-level approximation

    KW - Conjugated polymers

    M3 - Article

    VL - 129

    SP - 41103-

    JO - Journal of Chemical Physics

    JF - Journal of Chemical Physics

    SN - 0021-9606

    IS - 4

    ER -