Enhanced delayed fluorescence in tetracene crystals by strong light-matter coupling

Anton Matthijs Berghuis (Corresponding author), Alexei Halpin, Quynh Le Van, Mohammad Ramezani, Shaojun Wang, Shunsuke Murai, Jaime Gómez Rivas (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Uittreksel

An enhanced delayed fluorescence is demonstrated experimentally in tetracene single crystals strongly coupled to optical modes in open cavities formed by arrays of plasmonic nanoparticles. Hybridization of singlet excitons with collective plasmonic resonances in the arrays leads to the splitting of the material dispersion into a lower and an upper polariton band. This splitting significantly modifies the dynamics of the photoexcited tetracene crystal, resulting in an increase of the delayed fluorescence by a factor of 4. The enhanced delayed fluorescence is attributed to the emergence of an additional radiative decay channel, where the lower polariton band harvests long-lived triplet states. There is also an increase in total emission, which is wavelength dependent, and can be explained by the direct emission from the lower polariton band, the more efficient light out-coupling, and the enhancement of the excitation intensity. The observed enhanced fluorescence opens the possibility of efficient radiative triplet harvesting in open optical cavities, to improve the performance of organic light emitting diodes.

TaalEngels
Artikelnummer1901317
Aantal pagina's11
TijdschriftAdvanced Functional Materials
Volume29
Nummer van het tijdschrift36
DOI's
StatusGepubliceerd - 19 jul 2019

Vingerafdruk

Fluorescence
polaritons
fluorescence
Crystals
crystals
cavities
Organic light emitting diodes (OLED)
Excitons
atomic energy levels
light emitting diodes
excitons
Single crystals
Nanoparticles
Wavelength
nanoparticles
naphthacene
augmentation
single crystals
decay
wavelengths

Trefwoorden

    Citeer dit

    @article{9f8f50ddcc5f4e4cad7a5ae60f924bd8,
    title = "Enhanced delayed fluorescence in tetracene crystals by strong light-matter coupling",
    abstract = "An enhanced delayed fluorescence is demonstrated experimentally in tetracene single crystals strongly coupled to optical modes in open cavities formed by arrays of plasmonic nanoparticles. Hybridization of singlet excitons with collective plasmonic resonances in the arrays leads to the splitting of the material dispersion into a lower and an upper polariton band. This splitting significantly modifies the dynamics of the photoexcited tetracene crystal, resulting in an increase of the delayed fluorescence by a factor of 4. The enhanced delayed fluorescence is attributed to the emergence of an additional radiative decay channel, where the lower polariton band harvests long-lived triplet states. There is also an increase in total emission, which is wavelength dependent, and can be explained by the direct emission from the lower polariton band, the more efficient light out-coupling, and the enhancement of the excitation intensity. The observed enhanced fluorescence opens the possibility of efficient radiative triplet harvesting in open optical cavities, to improve the performance of organic light emitting diodes.",
    keywords = "delayed fluorescence, plasmonics, strong light-matter coupling, tetracene",
    author = "Berghuis, {Anton Matthijs} and Alexei Halpin and {Le Van}, Quynh and Mohammad Ramezani and Shaojun Wang and Shunsuke Murai and {G{\'o}mez Rivas}, Jaime",
    year = "2019",
    month = "7",
    day = "19",
    doi = "10.1002/adfm.201901317",
    language = "English",
    volume = "29",
    journal = "Advanced Functional Materials",
    issn = "1616-301X",
    publisher = "Wiley-VCH Verlag",
    number = "36",

    }

    Enhanced delayed fluorescence in tetracene crystals by strong light-matter coupling. / Berghuis, Anton Matthijs (Corresponding author); Halpin, Alexei; Le Van, Quynh; Ramezani, Mohammad; Wang, Shaojun; Murai, Shunsuke; Gómez Rivas, Jaime (Corresponding author).

    In: Advanced Functional Materials, Vol. 29, Nr. 36, 1901317, 19.07.2019.

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

    TY - JOUR

    T1 - Enhanced delayed fluorescence in tetracene crystals by strong light-matter coupling

    AU - Berghuis,Anton Matthijs

    AU - Halpin,Alexei

    AU - Le Van,Quynh

    AU - Ramezani,Mohammad

    AU - Wang,Shaojun

    AU - Murai,Shunsuke

    AU - Gómez Rivas,Jaime

    PY - 2019/7/19

    Y1 - 2019/7/19

    N2 - An enhanced delayed fluorescence is demonstrated experimentally in tetracene single crystals strongly coupled to optical modes in open cavities formed by arrays of plasmonic nanoparticles. Hybridization of singlet excitons with collective plasmonic resonances in the arrays leads to the splitting of the material dispersion into a lower and an upper polariton band. This splitting significantly modifies the dynamics of the photoexcited tetracene crystal, resulting in an increase of the delayed fluorescence by a factor of 4. The enhanced delayed fluorescence is attributed to the emergence of an additional radiative decay channel, where the lower polariton band harvests long-lived triplet states. There is also an increase in total emission, which is wavelength dependent, and can be explained by the direct emission from the lower polariton band, the more efficient light out-coupling, and the enhancement of the excitation intensity. The observed enhanced fluorescence opens the possibility of efficient radiative triplet harvesting in open optical cavities, to improve the performance of organic light emitting diodes.

    AB - An enhanced delayed fluorescence is demonstrated experimentally in tetracene single crystals strongly coupled to optical modes in open cavities formed by arrays of plasmonic nanoparticles. Hybridization of singlet excitons with collective plasmonic resonances in the arrays leads to the splitting of the material dispersion into a lower and an upper polariton band. This splitting significantly modifies the dynamics of the photoexcited tetracene crystal, resulting in an increase of the delayed fluorescence by a factor of 4. The enhanced delayed fluorescence is attributed to the emergence of an additional radiative decay channel, where the lower polariton band harvests long-lived triplet states. There is also an increase in total emission, which is wavelength dependent, and can be explained by the direct emission from the lower polariton band, the more efficient light out-coupling, and the enhancement of the excitation intensity. The observed enhanced fluorescence opens the possibility of efficient radiative triplet harvesting in open optical cavities, to improve the performance of organic light emitting diodes.

    KW - delayed fluorescence

    KW - plasmonics

    KW - strong light-matter coupling

    KW - tetracene

    UR - http://www.scopus.com/inward/record.url?scp=85069852466&partnerID=8YFLogxK

    U2 - 10.1002/adfm.201901317

    DO - 10.1002/adfm.201901317

    M3 - Article

    VL - 29

    JO - Advanced Functional Materials

    T2 - Advanced Functional Materials

    JF - Advanced Functional Materials

    SN - 1616-301X

    IS - 36

    M1 - 1901317

    ER -