Applied Physics Letters, volume 105, issue 17, pages 171110

Air-stable short-wave infrared PbS colloidal quantum dot photoconductors passivated with Al₂O₃ atomic layer deposition

Chen Hu ^{1, 2, 3}

Alban Gassenq ^{1, 2}

Yolanda Justo ^{2, 3}

Kilian Devloo-Casier ⁴

Chen Hongtao ^{1, 2}

Christophe Detavernier ⁴

Zeger Hens ^{2, 3}

Günther Roelkens ^{1, 2}

Hide authors affiliations Show authors affiliations: 4 affiliations

Ghent University-imec 1 Photonics Research Group-INTEC, , Sint-Pietersnieuwstraat 41, 9000 Ghent, Belgium

Ghent University

Interuniversity Microelectronics Centre

Ghent University 2 Center for Nano-and Biophotonics, , Sint-Pietersnieuwstraat 41, 9000 Ghent, Belgium |

Ghent University 3 Physics and Chemistry of Nanostructures Group, , Krijgslaan 281-S3, B-9000 Ghent, Belgium |

⁴

Universiteit Gent 4 Department of Solid State Sciences, , Krijgslaan 281-S1, 9000 Ghent, Belgium |

Publication type: Journal Article

Publication date: 2014-10-27

AIP Publishing

Journal: Applied Physics Letters

SJR: 0.976

CiteScore: 6.4

Impact factor: 3.5

ISSN: 00036951, 10773118

DOI: 10.1063/1.4900930

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Physics and Astronomy (miscellaneous)

Abstract

A PbS colloidal quantum dot photoconductor with Al2O3 atomic layer deposition (ALD) passivation for air-stable operation is presented. Two different types of inorganic ligands for the quantum dots, S2− and OH−, are investigated. PbS/S2− photoconductors with a cut-off wavelength up to 2.4 μm are obtained, and a responsivity up to 50 A/W at 1550 nm is reported. The corresponding specific detectivity is ∼3.4 × 108 Jones at 230 K. The 3-dB bandwidth of the PbS/S2− and PbS/OH− photodetectors is 40 Hz and 11 Hz, respectively.

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GOST Copy

Hu C. et al. Air-stable short-wave infrared PbS colloidal quantum dot photoconductors passivated with Al2O3 atomic layer deposition // Applied Physics Letters. 2014. Vol. 105. No. 17. p. 171110.

GOST all authors (up to 50) Copy

Hu C., Gassenq A., Justo Y., Devloo-Casier K., Chen Hongtao, Detavernier C., Hens Z., Roelkens G. Air-stable short-wave infrared PbS colloidal quantum dot photoconductors passivated with Al2O3 atomic layer deposition // Applied Physics Letters. 2014. Vol. 105. No. 17. p. 171110.

RIS |

Cite this

RIS Copy

TY - JOUR

DO - 10.1063/1.4900930

UR - https://doi.org/10.1063/1.4900930

TI - Air-stable short-wave infrared PbS colloidal quantum dot photoconductors passivated with Al2O3 atomic layer deposition

T2 - Applied Physics Letters

AU - Hu, Chen

AU - Gassenq, Alban

AU - Justo, Yolanda

AU - Devloo-Casier, Kilian

AU - Chen Hongtao

AU - Detavernier, Christophe

AU - Hens, Zeger

AU - Roelkens, Günther

PY - 2014

DA - 2014/10/27

PB - AIP Publishing

SP - 171110

IS - 17

VL - 105

SN - 0003-6951

SN - 1077-3118

ER -

BibTex |

Cite this

BibTex (up to 50 authors) Copy

@article{2014_Hu,

author = {Chen Hu and Alban Gassenq and Yolanda Justo and Kilian Devloo-Casier and Chen Hongtao and Christophe Detavernier and Zeger Hens and Günther Roelkens},

title = {Air-stable short-wave infrared PbS colloidal quantum dot photoconductors passivated with Al2O3 atomic layer deposition},

journal = {Applied Physics Letters},

year = {2014},

volume = {105},

publisher = {AIP Publishing},

month = {oct},

url = {https://doi.org/10.1063/1.4900930},

number = {17},

pages = {171110},

doi = {10.1063/1.4900930}

}

MLA

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MLA Copy

Hu, Chen, et al. “Air-stable short-wave infrared PbS colloidal quantum dot photoconductors passivated with Al2O3 atomic layer deposition.” Applied Physics Letters, vol. 105, no. 17, Oct. 2014, p. 171110. https://doi.org/10.1063/1.4900930.

Found error?

Publisher

AIP Publishing

Journal

Applied Physics Letters

SJR

0.976

CiteScore

6.4

Impact factor

3.5

ISSN

00036951 (Print)

10773118 (Electronic)

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