Preserving the emission lifetime and efficiency of a monolayer semiconductor upon transfer

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Uittreksel

Monolayer transition metal dichalcogenides (TMDs) are promising semiconductors for nanoscale photonics and optoelectronics due to their strong interactions with light. However, processes that integrate TMDs into nanophotonic and optoelectronic devices can introduce defects in the monolayers, resulting in lower emission efficiency. Quality control is therefore needed to process monolayer semiconductors effectively. Through micro‐photoluminescence and fluorescence lifetime imaging measurements, this work investigates the effects of encapsulation on the optical properties of TMD monolayers, focusing on the impact of different processing techniques and different dielectric environments. Spin coating a polymer layer on top of a TMD monolayer is shown to significantly reduce its emission lifetime and efficiency. In contrast, the soft transfer of a monolayer deposited on a polymer superstrate can preserve its intrinsic emission properties almost perfectly in various dielectric environments. This approach can be widely applied to integrate TMDs into devices and heterostructures while protecting sample quality, and demonstrates that intrinsic quantum efficiency and photoluminescence lifetimes of TMDs can be preserved upon transfer to different dielectric substrates.
TaalEngels
Artikelnummer1900351
Aantal pagina's9
TijdschriftAdvanced Optical Materials
Volume7
Nummer van het tijdschrift13
Vroegere onlinedatum30 apr 2019
DOI's
StatusGepubliceerd - 4 jul 2019

Vingerafdruk

preserving
Transition metals
Monolayers
transition metals
Semiconductor materials
life (durability)
Optoelectronic devices
Photoluminescence
Polymers
photoluminescence
Nanophotonics
polymers
Spin coating
quality control
optoelectronic devices
Quantum efficiency
Encapsulation
Photonics
Quality control
coating

Trefwoorden

    Citeer dit

    @article{7f6a5c9948864937ba84a155f52f9535,
    title = "Preserving the emission lifetime and efficiency of a monolayer semiconductor upon transfer",
    abstract = "Monolayer transition metal dichalcogenides (TMDs) are promising semiconductors for nanoscale photonics and optoelectronics due to their strong interactions with light. However, processes that integrate TMDs into nanophotonic and optoelectronic devices can introduce defects in the monolayers, resulting in lower emission efficiency. Quality control is therefore needed to process monolayer semiconductors effectively. Through micro‐photoluminescence and fluorescence lifetime imaging measurements, this work investigates the effects of encapsulation on the optical properties of TMD monolayers, focusing on the impact of different processing techniques and different dielectric environments. Spin coating a polymer layer on top of a TMD monolayer is shown to significantly reduce its emission lifetime and efficiency. In contrast, the soft transfer of a monolayer deposited on a polymer superstrate can preserve its intrinsic emission properties almost perfectly in various dielectric environments. This approach can be widely applied to integrate TMDs into devices and heterostructures while protecting sample quality, and demonstrates that intrinsic quantum efficiency and photoluminescence lifetimes of TMDs can be preserved upon transfer to different dielectric substrates.",
    keywords = "2D semiconductors, Soft transfer, Luminescence Lifetime, Tungsten disulfide, Quantum efficiency",
    author = "{Eizagirre Barker}, S. and Shaojun Wang and {Hjelmgart - Godiksen}, Rasmus and {Castellanos Gonzalez}, Gabriel and Matthijs Berghuis and Raziman, {T. V.} and {Gonz{\'a}lez Curto}, Alberto and {G{\'o}mez Rivas}, Jaime",
    year = "2019",
    month = "7",
    day = "4",
    doi = "10.1002/adom.201900351",
    language = "English",
    volume = "7",
    journal = "Advanced Optical Materials",
    issn = "2195-1071",
    publisher = "Wiley",
    number = "13",

    }

    TY - JOUR

    T1 - Preserving the emission lifetime and efficiency of a monolayer semiconductor upon transfer

    AU - Eizagirre Barker,S.

    AU - Wang,Shaojun

    AU - Hjelmgart - Godiksen,Rasmus

    AU - Castellanos Gonzalez,Gabriel

    AU - Berghuis,Matthijs

    AU - Raziman,T. V.

    AU - González Curto,Alberto

    AU - Gómez Rivas,Jaime

    PY - 2019/7/4

    Y1 - 2019/7/4

    N2 - Monolayer transition metal dichalcogenides (TMDs) are promising semiconductors for nanoscale photonics and optoelectronics due to their strong interactions with light. However, processes that integrate TMDs into nanophotonic and optoelectronic devices can introduce defects in the monolayers, resulting in lower emission efficiency. Quality control is therefore needed to process monolayer semiconductors effectively. Through micro‐photoluminescence and fluorescence lifetime imaging measurements, this work investigates the effects of encapsulation on the optical properties of TMD monolayers, focusing on the impact of different processing techniques and different dielectric environments. Spin coating a polymer layer on top of a TMD monolayer is shown to significantly reduce its emission lifetime and efficiency. In contrast, the soft transfer of a monolayer deposited on a polymer superstrate can preserve its intrinsic emission properties almost perfectly in various dielectric environments. This approach can be widely applied to integrate TMDs into devices and heterostructures while protecting sample quality, and demonstrates that intrinsic quantum efficiency and photoluminescence lifetimes of TMDs can be preserved upon transfer to different dielectric substrates.

    AB - Monolayer transition metal dichalcogenides (TMDs) are promising semiconductors for nanoscale photonics and optoelectronics due to their strong interactions with light. However, processes that integrate TMDs into nanophotonic and optoelectronic devices can introduce defects in the monolayers, resulting in lower emission efficiency. Quality control is therefore needed to process monolayer semiconductors effectively. Through micro‐photoluminescence and fluorescence lifetime imaging measurements, this work investigates the effects of encapsulation on the optical properties of TMD monolayers, focusing on the impact of different processing techniques and different dielectric environments. Spin coating a polymer layer on top of a TMD monolayer is shown to significantly reduce its emission lifetime and efficiency. In contrast, the soft transfer of a monolayer deposited on a polymer superstrate can preserve its intrinsic emission properties almost perfectly in various dielectric environments. This approach can be widely applied to integrate TMDs into devices and heterostructures while protecting sample quality, and demonstrates that intrinsic quantum efficiency and photoluminescence lifetimes of TMDs can be preserved upon transfer to different dielectric substrates.

    KW - 2D semiconductors

    KW - Soft transfer

    KW - Luminescence Lifetime

    KW - Tungsten disulfide

    KW - Quantum efficiency

    U2 - 10.1002/adom.201900351

    DO - 10.1002/adom.201900351

    M3 - Article

    VL - 7

    JO - Advanced Optical Materials

    T2 - Advanced Optical Materials

    JF - Advanced Optical Materials

    SN - 2195-1071

    IS - 13

    M1 - 1900351

    ER -