Colloidal Quantum Dot Photovoltaics Enhanced by Perovskite Shelling

Zhenyu Yang; Alyf Janmohamed; Xinzheng Lan; F. Pelayo Garcia de Arquer; Oleksandr Voznyy; Emre Yassitepe; Gi-Hwan Kim; Zhijun Ning; Xiwen Gong; Riccardo Comin; Edward H. Sargent

doi:10.1021/acs.nanolett.5b03271

Colloidal Quantum Dot Photovoltaics Enhanced by Perovskite Shelling

Zhenyu Yang, Alyf Janmohamed, Xinzheng Lan, F. Pelayo Garcia de Arquer, Oleksandr Voznyy, Emre Yassitepe, Gi-Hwan Kim, Zhijun Ning, Xiwen Gong, Riccardo Comin, Edward H. Sargent

Research output: Contribution to journal › Article › peer-review

173 Scopus citations

Abstract

Solution-processed quantum dots are a promising material for large-scale, low-cost solar cell applications. New device architectures and improved passivation have been instrumental in increasing the performance of quantum dot photovoltaic devices. Here we report photovoltaic devices based on inks of quantum dot on which we grow thin perovskite shells in solid-state films. Passivation using the perovskite was achieved using a facile solution ligand exchange followed by postannealing. The resulting hybrid nanostructure created a more intrinsic CQD film, which, when incorporated into a photovoltaic device with graded bandstructure, achieved a record solar cell performance for single-step-deposited CQD films, exhibiting an AM1.5 solar power conversion efficiency of 8.95%.

Original language	English (US)
Pages (from-to)	7539-7543
Number of pages	5
Journal	Nano Letters
Volume	15
Issue number	11
DOIs	https://doi.org/10.1021/acs.nanolett.5b03271
State	Published - 2015
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2021-11-04
Acknowledged KAUST grant number(s): KUS-11-009-21
Acknowledgements: This publication is based in part on supported by Award KUS-11-009-21, from King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program, by the Natural Sciences and Engineering Research Council (NSERC) of Canada, and by the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (2012T100100740). A.J. thanks NSERC for Undergraduate Student Research Award Funding. E.Y. acknowledges support from FAPESP-BEPE fellowship (2014/18327-9). The authors thank E. Palmiano, L. Levina, R. Wolowiec, and D. Kopilovic for helpful discussions.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

Bioengineering
General Materials Science
General Chemistry
Mechanical Engineering
Condensed Matter Physics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acs.nanolett.5b03271

Cite this

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title = "Colloidal Quantum Dot Photovoltaics Enhanced by Perovskite Shelling",

abstract = "Solution-processed quantum dots are a promising material for large-scale, low-cost solar cell applications. New device architectures and improved passivation have been instrumental in increasing the performance of quantum dot photovoltaic devices. Here we report photovoltaic devices based on inks of quantum dot on which we grow thin perovskite shells in solid-state films. Passivation using the perovskite was achieved using a facile solution ligand exchange followed by postannealing. The resulting hybrid nanostructure created a more intrinsic CQD film, which, when incorporated into a photovoltaic device with graded bandstructure, achieved a record solar cell performance for single-step-deposited CQD films, exhibiting an AM1.5 solar power conversion efficiency of 8.95%.",

author = "Zhenyu Yang and Alyf Janmohamed and Xinzheng Lan and {de Arquer}, {F. Pelayo Garcia} and Oleksandr Voznyy and Emre Yassitepe and Gi-Hwan Kim and Zhijun Ning and Xiwen Gong and Riccardo Comin and Sargent, {Edward H.}",

note = "KAUST Repository Item: Exported on 2021-11-04 Acknowledged KAUST grant number(s): KUS-11-009-21 Acknowledgements: This publication is based in part on supported by Award KUS-11-009-21, from King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program, by the Natural Sciences and Engineering Research Council (NSERC) of Canada, and by the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (2012T100100740). A.J. thanks NSERC for Undergraduate Student Research Award Funding. E.Y. acknowledges support from FAPESP-BEPE fellowship (2014/18327-9). The authors thank E. Palmiano, L. Levina, R. Wolowiec, and D. Kopilovic for helpful discussions. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

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language = "English (US)",

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AU - Voznyy, Oleksandr

AU - Yassitepe, Emre

AU - Kim, Gi-Hwan

AU - Ning, Zhijun

AU - Gong, Xiwen

AU - Comin, Riccardo

AU - Sargent, Edward H.

N1 - KAUST Repository Item: Exported on 2021-11-04 Acknowledged KAUST grant number(s): KUS-11-009-21 Acknowledgements: This publication is based in part on supported by Award KUS-11-009-21, from King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program, by the Natural Sciences and Engineering Research Council (NSERC) of Canada, and by the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (2012T100100740). A.J. thanks NSERC for Undergraduate Student Research Award Funding. E.Y. acknowledges support from FAPESP-BEPE fellowship (2014/18327-9). The authors thank E. Palmiano, L. Levina, R. Wolowiec, and D. Kopilovic for helpful discussions. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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N2 - Solution-processed quantum dots are a promising material for large-scale, low-cost solar cell applications. New device architectures and improved passivation have been instrumental in increasing the performance of quantum dot photovoltaic devices. Here we report photovoltaic devices based on inks of quantum dot on which we grow thin perovskite shells in solid-state films. Passivation using the perovskite was achieved using a facile solution ligand exchange followed by postannealing. The resulting hybrid nanostructure created a more intrinsic CQD film, which, when incorporated into a photovoltaic device with graded bandstructure, achieved a record solar cell performance for single-step-deposited CQD films, exhibiting an AM1.5 solar power conversion efficiency of 8.95%.

AB - Solution-processed quantum dots are a promising material for large-scale, low-cost solar cell applications. New device architectures and improved passivation have been instrumental in increasing the performance of quantum dot photovoltaic devices. Here we report photovoltaic devices based on inks of quantum dot on which we grow thin perovskite shells in solid-state films. Passivation using the perovskite was achieved using a facile solution ligand exchange followed by postannealing. The resulting hybrid nanostructure created a more intrinsic CQD film, which, when incorporated into a photovoltaic device with graded bandstructure, achieved a record solar cell performance for single-step-deposited CQD films, exhibiting an AM1.5 solar power conversion efficiency of 8.95%.

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Colloidal Quantum Dot Photovoltaics Enhanced by Perovskite Shelling

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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