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Increasing responsivity and air stability of PbS colloidal quantum dot photoconductors with iodine surface ligands

(2019) NANOTECHNOLOGY. 30(40).
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Abstract
PbS colloidal quantum dots (QDs) are a promising material for the realization of low-cost, high-responsivity near-infrared photodetectors. Previously reported attempts showed high responsivity but a fast performance decay in air-exposed devices, demanding encapsulation of the photodetectors. Conversely, devices with very high air stability have been demonstrated but the low trap-state density hinders photoconductive gain and reduces overall responsivity. In this paper, photoconductive devices prepared with partially tetrabutylammonium iodide exchanged PbS QDs are presented with enhanced air stability and high responsivity at low voltage, low optical power.
Keywords
PbS colloidal quantum dot, near-infrared photodetectors, iodine ligand, SOLAR-CELLS, RECOMBINATION

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MLA
Venettacci, Carlo, et al. “Increasing Responsivity and Air Stability of PbS Colloidal Quantum Dot Photoconductors with Iodine Surface Ligands.” NANOTECHNOLOGY, vol. 30, no. 40, 2019, doi:10.1088/1361-6528/ab2f4b.
APA
Venettacci, C., Martín-García, B., Prato, M., Moreels, I., & De Iacovo, A. (2019). Increasing responsivity and air stability of PbS colloidal quantum dot photoconductors with iodine surface ligands. NANOTECHNOLOGY, 30(40). https://doi.org/10.1088/1361-6528/ab2f4b
Chicago author-date
Venettacci, Carlo, Beatriz Martín-García, Mirko Prato, Iwan Moreels, and Andrea De Iacovo. 2019. “Increasing Responsivity and Air Stability of PbS Colloidal Quantum Dot Photoconductors with Iodine Surface Ligands.” NANOTECHNOLOGY 30 (40). https://doi.org/10.1088/1361-6528/ab2f4b.
Chicago author-date (all authors)
Venettacci, Carlo, Beatriz Martín-García, Mirko Prato, Iwan Moreels, and Andrea De Iacovo. 2019. “Increasing Responsivity and Air Stability of PbS Colloidal Quantum Dot Photoconductors with Iodine Surface Ligands.” NANOTECHNOLOGY 30 (40). doi:10.1088/1361-6528/ab2f4b.
Vancouver
1.
Venettacci C, Martín-García B, Prato M, Moreels I, De Iacovo A. Increasing responsivity and air stability of PbS colloidal quantum dot photoconductors with iodine surface ligands. NANOTECHNOLOGY. 2019;30(40).
IEEE
[1]
C. Venettacci, B. Martín-García, M. Prato, I. Moreels, and A. De Iacovo, “Increasing responsivity and air stability of PbS colloidal quantum dot photoconductors with iodine surface ligands,” NANOTECHNOLOGY, vol. 30, no. 40, 2019.
@article{8625783,
  abstract     = {{PbS colloidal quantum dots (QDs) are a promising material for the realization of low-cost, high-responsivity near-infrared photodetectors. Previously reported attempts showed high responsivity but a fast performance decay in air-exposed devices, demanding encapsulation of the photodetectors. Conversely, devices with very high air stability have been demonstrated but the low trap-state density hinders photoconductive gain and reduces overall responsivity. In this paper, photoconductive devices prepared with partially tetrabutylammonium iodide exchanged PbS QDs are presented with enhanced air stability and high responsivity at low voltage, low optical power.}},
  articleno    = {{405204}},
  author       = {{Venettacci, Carlo and Martín-García, Beatriz and Prato, Mirko and Moreels, Iwan and De Iacovo, Andrea}},
  issn         = {{0957-4484}},
  journal      = {{NANOTECHNOLOGY}},
  keywords     = {{PbS colloidal quantum dot,near-infrared photodetectors,iodine ligand,SOLAR-CELLS,RECOMBINATION}},
  language     = {{eng}},
  number       = {{40}},
  pages        = {{7}},
  title        = {{Increasing responsivity and air stability of PbS colloidal quantum dot photoconductors with iodine surface ligands}},
  url          = {{http://doi.org/10.1088/1361-6528/ab2f4b}},
  volume       = {{30}},
  year         = {{2019}},
}

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