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Photodetecting Heterostructures from Graphene and Encapsulated Colloidal Quantum Dot Films

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Photodetecting Heterostructures from Graphene and Encapsulated Colloidal Quantum Dot Films. / Black, Andrés; Urbanos, Fernando; Roberts, Jonathan; Acebron, Maria; Bernardo Gavito, Ramon; Juarez, Beatriz H.; Robinson, Benjamin; Young, Robert; Vazquez de Parga, Amadeo; Granados, Daniel.

In: ACS Omega, Vol. 4, No. 14, 17.09.2019, p. 15824-15828.

Research output: Contribution to journalJournal article

Harvard

Black, A, Urbanos, F, Roberts, J, Acebron, M, Bernardo Gavito, R, Juarez, BH, Robinson, B, Young, R, Vazquez de Parga, A & Granados, D 2019, 'Photodetecting Heterostructures from Graphene and Encapsulated Colloidal Quantum Dot Films', ACS Omega, vol. 4, no. 14, pp. 15824-15828. https://doi.org/10.1021/acsomega.9b01449

APA

Black, A., Urbanos, F., Roberts, J., Acebron, M., Bernardo Gavito, R., Juarez, B. H., Robinson, B., Young, R., Vazquez de Parga, A., & Granados, D. (2019). Photodetecting Heterostructures from Graphene and Encapsulated Colloidal Quantum Dot Films. ACS Omega, 4(14), 15824-15828. https://doi.org/10.1021/acsomega.9b01449

Vancouver

Author

Black, Andrés ; Urbanos, Fernando ; Roberts, Jonathan ; Acebron, Maria ; Bernardo Gavito, Ramon ; Juarez, Beatriz H. ; Robinson, Benjamin ; Young, Robert ; Vazquez de Parga, Amadeo ; Granados, Daniel. / Photodetecting Heterostructures from Graphene and Encapsulated Colloidal Quantum Dot Films. In: ACS Omega. 2019 ; Vol. 4, No. 14. pp. 15824-15828.

Bibtex

@article{780c025e564a4e5d9c5fa409403fea4f,
title = "Photodetecting Heterostructures from Graphene and Encapsulated Colloidal Quantum Dot Films",
abstract = "Heterostructure devices consisting of graphene and colloidal quantum dots (QDs) have been remarkably successful as photodetectors and have opened the door to technological applications based on the combination of these low-dimensional materials. This work explores the photodetection properties of a heterostructure consisting of a graphene field effect transistor covered by a film of silica-encapsulated colloidal QDs. Defects at the surface of the silica shell trap optically excited charge carriers, which simultaneously enables photodetection via two mechanisms: photogating, resulting in a net p-doping of the device, and Coulombic scattering of charge carriers in the graphene, producing an overall decrease in the current magnitude.",
author = "Andr{\'e}s Black and Fernando Urbanos and Jonathan Roberts and Maria Acebron and {Bernardo Gavito}, Ramon and Juarez, {Beatriz H.} and Benjamin Robinson and Robert Young and {Vazquez de Parga}, Amadeo and Daniel Granados",
year = "2019",
month = sep
day = "17",
doi = "10.1021/acsomega.9b01449",
language = "English",
volume = "4",
pages = "15824--15828",
journal = "ACS Omega",
issn = "2470-1343",
publisher = "American Chemical Society",
number = "14",

}

RIS

TY - JOUR

T1 - Photodetecting Heterostructures from Graphene and Encapsulated Colloidal Quantum Dot Films

AU - Black, Andrés

AU - Urbanos, Fernando

AU - Roberts, Jonathan

AU - Acebron, Maria

AU - Bernardo Gavito, Ramon

AU - Juarez, Beatriz H.

AU - Robinson, Benjamin

AU - Young, Robert

AU - Vazquez de Parga, Amadeo

AU - Granados, Daniel

PY - 2019/9/17

Y1 - 2019/9/17

N2 - Heterostructure devices consisting of graphene and colloidal quantum dots (QDs) have been remarkably successful as photodetectors and have opened the door to technological applications based on the combination of these low-dimensional materials. This work explores the photodetection properties of a heterostructure consisting of a graphene field effect transistor covered by a film of silica-encapsulated colloidal QDs. Defects at the surface of the silica shell trap optically excited charge carriers, which simultaneously enables photodetection via two mechanisms: photogating, resulting in a net p-doping of the device, and Coulombic scattering of charge carriers in the graphene, producing an overall decrease in the current magnitude.

AB - Heterostructure devices consisting of graphene and colloidal quantum dots (QDs) have been remarkably successful as photodetectors and have opened the door to technological applications based on the combination of these low-dimensional materials. This work explores the photodetection properties of a heterostructure consisting of a graphene field effect transistor covered by a film of silica-encapsulated colloidal QDs. Defects at the surface of the silica shell trap optically excited charge carriers, which simultaneously enables photodetection via two mechanisms: photogating, resulting in a net p-doping of the device, and Coulombic scattering of charge carriers in the graphene, producing an overall decrease in the current magnitude.

U2 - 10.1021/acsomega.9b01449

DO - 10.1021/acsomega.9b01449

M3 - Journal article

VL - 4

SP - 15824

EP - 15828

JO - ACS Omega

JF - ACS Omega

SN - 2470-1343

IS - 14

ER -