Efficient hybrid colloidal quantum dot/organic solar cells mediated by near-infrared sensitizing small molecules

Se Woong Baek; Sunhong Jun; Byeongsu Kim; Andrew H. Proppe; Olivier Ouellette; Oleksandr Voznyy; Changjo Kim; Junho Kim; Grant Walters; Jung Hoon Song; Sohee Jeong; Hye Ryung Byun; Mun Seok Jeong; Sjoerd Hoogland; F. Pelayo García de Arquer; Shana O. Kelley; Jung Yong Lee; Edward H. Sargent

doi:10.1038/s41560-019-0492-1

Efficient hybrid colloidal quantum dot/organic solar cells mediated by near-infrared sensitizing small molecules

Se Woong Baek, Sunhong Jun, Byeongsu Kim, Andrew H. Proppe, Olivier Ouellette, Oleksandr Voznyy, Changjo Kim, Junho Kim, Grant Walters, Jung Hoon Song, Sohee Jeong, Hye Ryung Byun, Mun Seok Jeong, Sjoerd Hoogland, F. Pelayo García de Arquer, Shana O. Kelley, Jung Yong Lee, Edward H. Sargent

Department of Chemistry

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

86 Citations (Scopus)

Abstract

Solution-processed semiconductors are promising materials to realize optoelectronic devices that combine high performance with inexpensive manufacturing. In particular, the exploitation of colloidal quantum dots (CQDs) capable of harvesting infrared photons, in conjunction with visible-absorbing organic chromophores, has been demonstrated as an interesting route. Unfortunately, CQD/organic hybrid photovoltaics have been limited to power conversion efficiencies (PCEs) below 10% due to chemical mismatch and difficulties in facilitating charge collection. Here we devise a hybrid architecture that overcomes these limitations by introducing small molecules into the CQD/organic stacked structure. The small molecule complements CQD absorption and creates an exciton cascade with the host polymer, thus enabling efficient energy transfer and also promoting exciton dissociation at heterointerfaces. The resulting hybrid solar cells exhibit PCEs of 13.1% and retain over 80% of their initial PCE after 150 h of continuous operation unencapsulated, outperforming present air-processed solution-cast CQD/organic photovoltaics.

Original language	English
Pages (from-to)	969-976
Number of pages	8
Journal	Nature Energy
Volume	4
Issue number	11
DOIs	https://doi.org/10.1038/s41560-019-0492-1
Publication status	Published - 2019 Nov 1

Bibliographical note

Funding Information:
This research was supported by Ontario Research Fund–Research Excellence program (ORF7–Ministry of Research and Innovation, Ontario Research Fund–Research Excellence Round 7); and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. This work was supported by National Research Foundation of Korea (NRF) grants (nos. NRF-2015M1A2A2057509 and NRF-2019R1A2C3008035). J.H.S. and S. Jeong were supported by grant no. NRF-2019M3D1A1078296. A.H.P. was supported by an NSERC CGS-D fellowship.

Publisher Copyright:
© 2019, The Author(s), under exclusive licence to Springer Nature Limited.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology

UN SDGs

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

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10.1038/s41560-019-0492-1

Cite this

Baek, S. W., Jun, S., Kim, B., Proppe, A. H., Ouellette, O., Voznyy, O., Kim, C., Kim, J., Walters, G., Song, J. H., Jeong, S., Byun, H. R., Jeong, M. S., Hoogland, S., García de Arquer, F. P., Kelley, S. O., Lee, J. Y., & Sargent, E. H. (2019). Efficient hybrid colloidal quantum dot/organic solar cells mediated by near-infrared sensitizing small molecules. Nature Energy, 4(11), 969-976. https://doi.org/10.1038/s41560-019-0492-1

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abstract = "Solution-processed semiconductors are promising materials to realize optoelectronic devices that combine high performance with inexpensive manufacturing. In particular, the exploitation of colloidal quantum dots (CQDs) capable of harvesting infrared photons, in conjunction with visible-absorbing organic chromophores, has been demonstrated as an interesting route. Unfortunately, CQD/organic hybrid photovoltaics have been limited to power conversion efficiencies (PCEs) below 10% due to chemical mismatch and difficulties in facilitating charge collection. Here we devise a hybrid architecture that overcomes these limitations by introducing small molecules into the CQD/organic stacked structure. The small molecule complements CQD absorption and creates an exciton cascade with the host polymer, thus enabling efficient energy transfer and also promoting exciton dissociation at heterointerfaces. The resulting hybrid solar cells exhibit PCEs of 13.1% and retain over 80% of their initial PCE after 150 h of continuous operation unencapsulated, outperforming present air-processed solution-cast CQD/organic photovoltaics.",

author = "Baek, {Se Woong} and Sunhong Jun and Byeongsu Kim and Proppe, {Andrew H.} and Olivier Ouellette and Oleksandr Voznyy and Changjo Kim and Junho Kim and Grant Walters and Song, {Jung Hoon} and Sohee Jeong and Byun, {Hye Ryung} and Jeong, {Mun Seok} and Sjoerd Hoogland and {Garc{\'i}a de Arquer}, {F. Pelayo} and Kelley, {Shana O.} and Lee, {Jung Yong} and Sargent, {Edward H.}",

note = "Funding Information: This research was supported by Ontario Research Fund–Research Excellence program (ORF7–Ministry of Research and Innovation, Ontario Research Fund–Research Excellence Round 7); and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. This work was supported by National Research Foundation of Korea (NRF) grants (nos. NRF-2015M1A2A2057509 and NRF-2019R1A2C3008035). J.H.S. and S. Jeong were supported by grant no. NRF-2019M3D1A1078296. A.H.P. was supported by an NSERC CGS-D fellowship. Publisher Copyright: {\textcopyright} 2019, The Author(s), under exclusive licence to Springer Nature Limited.",

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Baek, SW, Jun, S, Kim, B, Proppe, AH, Ouellette, O, Voznyy, O, Kim, C, Kim, J, Walters, G, Song, JH, Jeong, S, Byun, HR, Jeong, MS, Hoogland, S, García de Arquer, FP, Kelley, SO, Lee, JY & Sargent, EH 2019, 'Efficient hybrid colloidal quantum dot/organic solar cells mediated by near-infrared sensitizing small molecules', Nature Energy, vol. 4, no. 11, pp. 969-976. https://doi.org/10.1038/s41560-019-0492-1

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AU - Baek, Se Woong

AU - Jun, Sunhong

AU - Kim, Byeongsu

AU - Proppe, Andrew H.

AU - Ouellette, Olivier

AU - Voznyy, Oleksandr

AU - Kim, Changjo

AU - Kim, Junho

AU - Walters, Grant

AU - Song, Jung Hoon

AU - Jeong, Sohee

AU - Byun, Hye Ryung

AU - Jeong, Mun Seok

AU - Hoogland, Sjoerd

AU - García de Arquer, F. Pelayo

AU - Kelley, Shana O.

AU - Lee, Jung Yong

AU - Sargent, Edward H.

N1 - Funding Information: This research was supported by Ontario Research Fund–Research Excellence program (ORF7–Ministry of Research and Innovation, Ontario Research Fund–Research Excellence Round 7); and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. This work was supported by National Research Foundation of Korea (NRF) grants (nos. NRF-2015M1A2A2057509 and NRF-2019R1A2C3008035). J.H.S. and S. Jeong were supported by grant no. NRF-2019M3D1A1078296. A.H.P. was supported by an NSERC CGS-D fellowship. Publisher Copyright: © 2019, The Author(s), under exclusive licence to Springer Nature Limited.

PY - 2019/11/1

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N2 - Solution-processed semiconductors are promising materials to realize optoelectronic devices that combine high performance with inexpensive manufacturing. In particular, the exploitation of colloidal quantum dots (CQDs) capable of harvesting infrared photons, in conjunction with visible-absorbing organic chromophores, has been demonstrated as an interesting route. Unfortunately, CQD/organic hybrid photovoltaics have been limited to power conversion efficiencies (PCEs) below 10% due to chemical mismatch and difficulties in facilitating charge collection. Here we devise a hybrid architecture that overcomes these limitations by introducing small molecules into the CQD/organic stacked structure. The small molecule complements CQD absorption and creates an exciton cascade with the host polymer, thus enabling efficient energy transfer and also promoting exciton dissociation at heterointerfaces. The resulting hybrid solar cells exhibit PCEs of 13.1% and retain over 80% of their initial PCE after 150 h of continuous operation unencapsulated, outperforming present air-processed solution-cast CQD/organic photovoltaics.

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Efficient hybrid colloidal quantum dot/organic solar cells mediated by near-infrared sensitizing small molecules

Abstract

Bibliographical note

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UN SDGs

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