ACS Applied Nano Materials, volume 1, issue 12, pages 6882-6889
Comparing Halide Ligands in PbS Colloidal Quantum Dots for Field-Effect Transistors and Solar Cells
Dmytro Bederak
1
,
Daniel M Balazs
1
,
Nataliia V Sukharevska
1
,
Artem G Shulga
1
,
Mustapha Abdu Aguye
1
,
Dmitry N. Dirin
2, 3
,
Maksym V. Kovalenko
2, 3
,
Publication type: Journal Article
Publication date: 2018-11-09
Journal:
ACS Applied Nano Materials
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 5.9
ISSN: 25740970, 25740970
PubMed ID:
30613830
General Materials Science
Abstract
Capping colloidal quantum dots (CQDs) with atomic ligands is a powerful approach to tune their properties and improve the charge carrier transport in CQD solids. Efficient passivation of the CQD surface, which can be achieved with halide ligands, is crucial for application in optoelectronic devices. Heavier halides, i.e., I– and Br–, have been thoroughly studied as capping ligands in the last years, but passivation with fluoride ions has not received sufficient consideration. In this work, effective coating of PbS CQDs with fluoride ligands is demonstrated and compared to the results obtained with other halides. The electron mobility in field-effect transistors of PbS CQDs treated with different halides shows an increase with the size of the atomic ligand (from 3.9 × 10–4 cm2/(V s) for fluoride-treated to 2.1 × 10–2 cm2/(V s) for iodide-treated), whereas the hole mobility remains unchanged in the range between 1 × 10–5 cm2/(V s) and 10–4cm2/(V s). This leads to a relatively more pronounced p-type behavior of the fluoride- and chloride-treated films compared to the iodide-treated ones. Cl–- and F–-capped PbS CQDs solids were then implemented as p-type layer in solar cells; these devices showed similar performance to those prepared with 1,2-ethanedithiol in the same function. The relatively stronger p-type character of the fluoride- and chloride-treated PbS CQD films broadens the utility of such materials in optoelectronic devices.
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Citations by publishers
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IEEE
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1 publication, 1.47%
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1 publication, 1.47%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 1.47%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Bederak D. et al. Comparing Halide Ligands in PbS Colloidal Quantum Dots for Field-Effect Transistors and Solar Cells // ACS Applied Nano Materials. 2018. Vol. 1. No. 12. pp. 6882-6889.
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Bederak D., Balazs D. M., Sukharevska N. V., Shulga A. G., Abdu Aguye M., Dirin D. N., Kovalenko M. V., Loi M. A. Comparing Halide Ligands in PbS Colloidal Quantum Dots for Field-Effect Transistors and Solar Cells // ACS Applied Nano Materials. 2018. Vol. 1. No. 12. pp. 6882-6889.
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TY - JOUR
DO - 10.1021/acsanm.8b01696
UR - https://doi.org/10.1021/acsanm.8b01696
TI - Comparing Halide Ligands in PbS Colloidal Quantum Dots for Field-Effect Transistors and Solar Cells
T2 - ACS Applied Nano Materials
AU - Sukharevska, Nataliia V
AU - Dirin, Dmitry N.
AU - Kovalenko, Maksym V.
AU - Loi, Maria Antonietta
AU - Bederak, Dmytro
AU - Balazs, Daniel M
AU - Shulga, Artem G
AU - Abdu Aguye, Mustapha
PY - 2018
DA - 2018/11/09 00:00:00
PB - American Chemical Society (ACS)
SP - 6882-6889
IS - 12
VL - 1
PMID - 30613830
SN - 2574-0970
SN - 2574-0970
ER -
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@article{2018_Bederak,
author = {Nataliia V Sukharevska and Dmitry N. Dirin and Maksym V. Kovalenko and Maria Antonietta Loi and Dmytro Bederak and Daniel M Balazs and Artem G Shulga and Mustapha Abdu Aguye},
title = {Comparing Halide Ligands in PbS Colloidal Quantum Dots for Field-Effect Transistors and Solar Cells},
journal = {ACS Applied Nano Materials},
year = {2018},
volume = {1},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/acsanm.8b01696},
number = {12},
pages = {6882--6889},
doi = {10.1021/acsanm.8b01696}
}
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MLA
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Bederak, Dmytro, et al. “Comparing Halide Ligands in PbS Colloidal Quantum Dots for Field-Effect Transistors and Solar Cells.” ACS Applied Nano Materials, vol. 1, no. 12, Nov. 2018, pp. 6882-6889. https://doi.org/10.1021/acsanm.8b01696.