ACS Energy Letters, volume 2, issue 4, pages 739-744

Suppressing Deep Traps in PbS Colloidal Quantum Dots via Facile Iodide Substitutional Doping for Solar Cells with Efficiency >10%

Alexandros Stavrinadis 1
S Pradhan 1
Paris Papagiorgis 2
G. Itskos 2
Publication typeJournal Article
Publication date2017-03-06
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor22
ISSN23808195, 23808195
Materials Chemistry
Chemistry (miscellaneous)
Energy Engineering and Power Technology
Fuel Technology
Renewable Energy, Sustainability and the Environment
Abstract
Surface passivation of PbS colloidal quantum dots (QDs) with iodide has been used in highly efficient solar cells. Iodide passivation is typically achieved by ligand-exchange processes on QD films. Complementary to this approach, herein we present a nonintrusive solution-based strategy for doping QDs with iodide to further optimize solar cell performance. The doping step is applied in situ at the end of the synthesis of the QDs. The optimum precursor I/Pb ratio is found to be in the 1.5–3% range at which iodide substitutes S without excessively altering the dots’ surface chemistry. This allows for band engineering and decreasing the density of deep trap states of the QDs, which taken together lead to PbS QD solar cells with efficiency in excess of 10%.

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Stavrinadis A. et al. Suppressing Deep Traps in PbS Colloidal Quantum Dots via Facile Iodide Substitutional Doping for Solar Cells with Efficiency >10% // ACS Energy Letters. 2017. Vol. 2. No. 4. pp. 739-744.
GOST all authors (up to 50) Copy
Stavrinadis A., Pradhan S., Papagiorgis P., Itskos G., Konstantatos G. Suppressing Deep Traps in PbS Colloidal Quantum Dots via Facile Iodide Substitutional Doping for Solar Cells with Efficiency >10% // ACS Energy Letters. 2017. Vol. 2. No. 4. pp. 739-744.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acsenergylett.7b00091
UR - https://doi.org/10.1021/acsenergylett.7b00091
TI - Suppressing Deep Traps in PbS Colloidal Quantum Dots via Facile Iodide Substitutional Doping for Solar Cells with Efficiency >10%
T2 - ACS Energy Letters
AU - Stavrinadis, Alexandros
AU - Konstantatos, Gerasimos
AU - Pradhan, S
AU - Papagiorgis, Paris
AU - Itskos, G.
PY - 2017
DA - 2017/03/06 00:00:00
PB - American Chemical Society (ACS)
SP - 739-744
IS - 4
VL - 2
SN - 2380-8195
SN - 2380-8195
ER -
BibTex |
Cite this
BibTex Copy
@article{2017_Stavrinadis,
author = {Alexandros Stavrinadis and Gerasimos Konstantatos and S Pradhan and Paris Papagiorgis and G. Itskos},
title = {Suppressing Deep Traps in PbS Colloidal Quantum Dots via Facile Iodide Substitutional Doping for Solar Cells with Efficiency >10%},
journal = {ACS Energy Letters},
year = {2017},
volume = {2},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021/acsenergylett.7b00091},
number = {4},
pages = {739--744},
doi = {10.1021/acsenergylett.7b00091}
}
MLA
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MLA Copy
Stavrinadis, Alexandros, et al. “Suppressing Deep Traps in PbS Colloidal Quantum Dots via Facile Iodide Substitutional Doping for Solar Cells with Efficiency >10%.” ACS Energy Letters, vol. 2, no. 4, Mar. 2017, pp. 739-744. https://doi.org/10.1021/acsenergylett.7b00091.
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