23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability

Kevin A. Bush; Axel F. Palmstrom; Zhengshan Yu; Mathieu Boccard; Rongrong Cheacharoen; Jonathan P. Mailoa; David P. McMeekin; Robert L.Z. Hoye; Colin D. Bailie; Tomas Leijtens; Ian Marius Peters; Maxmillian C. Minichetti; Nicholas Rolston; Rohit Prasanna; Sarah Sofia; Duncan Harwood; Wen Ma; Farhad Moghadam; Henry J. Snaith; Tonio Buonassisi; Zachary Holman; Stacey F. Bent; Michael D. McGehee

doi:10.1038/nenergy.2017.9

23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability

Kevin A. Bush, Axel F. Palmstrom, Zhengshan Yu, Mathieu Boccard, Rongrong Cheacharoen, Jonathan P. Mailoa, David P. McMeekin, Robert L.Z. Hoye, Colin D. Bailie, Tomas Leijtens, Ian Marius Peters, Maxmillian C. Minichetti, Nicholas Rolston, Rohit Prasanna, Sarah Sofia, Duncan Harwood, Wen Ma, Farhad Moghadam, Henry J. Snaith, Tonio BuonassisiZachary Holman, Stacey F. Bent, Michael D. McGehee

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

1183 Scopus citations

Abstract

As the record single-junction efficiencies of perovskite solar cells now rival those of copper indium gallium selenide, cadmium telluride and multicrystalline silicon, they are becoming increasingly attractive for use in tandem solar cells due to their wide, tunable bandgap and solution processability. Previously, perovskite/silicon tandems were limited by significant parasitic absorption and poor environmental stability. Here, we improve the efficiency of monolithic, two-terminal, 1-cm² perovskite/silicon tandems to 23.6% by combining an infrared-tuned silicon heterojunction bottom cell with the recently developed caesium formamidinium lead halide perovskite. This more-stable perovskite tolerates deposition of a tin oxide buffer layer via atomic layer deposition that prevents shunts, has negligible parasitic absorption, and allows for the sputter deposition of a transparent top electrode. Furthermore, the window layer doubles as a diffusion barrier, increasing the thermal and environmental stability to enable perovskite devices that withstand a 1,000-hour damp heat test at 85 °C and 85% relative humidity.

Original language	English (US)
Article number	17009
Journal	Nature Energy
Volume	2
Issue number	4
DOIs	https://doi.org/10.1038/nenergy.2017.9
State	Published - Mar 13 2017

ASJC Scopus subject areas

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

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10.1038/nenergy.2017.9

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Bush, K. A., Palmstrom, A. F., Yu, Z., Boccard, M., Cheacharoen, R., Mailoa, J. P., McMeekin, D. P., Hoye, R. L. Z., Bailie, C. D., Leijtens, T., Peters, I. M., Minichetti, M. C., Rolston, N., Prasanna, R., Sofia, S., Harwood, D., Ma, W., Moghadam, F., Snaith, H. J., ... McGehee, M. D. (2017). 23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability. Nature Energy, 2(4), Article 17009. https://doi.org/10.1038/nenergy.2017.9

Bush, KA, Palmstrom, AF, Yu, Z, Boccard, M, Cheacharoen, R, Mailoa, JP, McMeekin, DP, Hoye, RLZ, Bailie, CD, Leijtens, T, Peters, IM, Minichetti, MC, Rolston, N, Prasanna, R, Sofia, S, Harwood, D, Ma, W, Moghadam, F, Snaith, HJ, Buonassisi, T, Holman, Z, Bent, SF & McGehee, MD 2017, '23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability', Nature Energy, vol. 2, no. 4, 17009. https://doi.org/10.1038/nenergy.2017.9

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title = "23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability",

abstract = "As the record single-junction efficiencies of perovskite solar cells now rival those of copper indium gallium selenide, cadmium telluride and multicrystalline silicon, they are becoming increasingly attractive for use in tandem solar cells due to their wide, tunable bandgap and solution processability. Previously, perovskite/silicon tandems were limited by significant parasitic absorption and poor environmental stability. Here, we improve the efficiency of monolithic, two-terminal, 1-cm2 perovskite/silicon tandems to 23.6% by combining an infrared-tuned silicon heterojunction bottom cell with the recently developed caesium formamidinium lead halide perovskite. This more-stable perovskite tolerates deposition of a tin oxide buffer layer via atomic layer deposition that prevents shunts, has negligible parasitic absorption, and allows for the sputter deposition of a transparent top electrode. Furthermore, the window layer doubles as a diffusion barrier, increasing the thermal and environmental stability to enable perovskite devices that withstand a 1,000-hour damp heat test at 85 °C and 85% relative humidity.",

author = "Bush, {Kevin A.} and Palmstrom, {Axel F.} and Zhengshan Yu and Mathieu Boccard and Rongrong Cheacharoen and Mailoa, {Jonathan P.} and McMeekin, {David P.} and Hoye, {Robert L.Z.} and Bailie, {Colin D.} and Tomas Leijtens and Peters, {Ian Marius} and Minichetti, {Maxmillian C.} and Nicholas Rolston and Rohit Prasanna and Sarah Sofia and Duncan Harwood and Wen Ma and Farhad Moghadam and Snaith, {Henry J.} and Tonio Buonassisi and Zachary Holman and Bent, {Stacey F.} and McGehee, {Michael D.}",

note = "Funding Information: K.A.B. is supported by the NSF Graduate Research Fellowship Program under Grant No. DGE-114747. The optical measurements were performed in part at the Stanford Nanofabrication Facility's nSiL laboratory, which is funded by NSF award ARI-0963061. Publisher Copyright: {\textcopyright} 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.",

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AU - Bush, Kevin A.

AU - Palmstrom, Axel F.

AU - Yu, Zhengshan

AU - Boccard, Mathieu

AU - Cheacharoen, Rongrong

AU - Mailoa, Jonathan P.

AU - McMeekin, David P.

AU - Hoye, Robert L.Z.

AU - Bailie, Colin D.

AU - Leijtens, Tomas

AU - Peters, Ian Marius

AU - Minichetti, Maxmillian C.

AU - Rolston, Nicholas

AU - Prasanna, Rohit

AU - Sofia, Sarah

AU - Harwood, Duncan

AU - Ma, Wen

AU - Moghadam, Farhad

AU - Snaith, Henry J.

AU - Buonassisi, Tonio

AU - Holman, Zachary

AU - Bent, Stacey F.

AU - McGehee, Michael D.

N1 - Funding Information: K.A.B. is supported by the NSF Graduate Research Fellowship Program under Grant No. DGE-114747. The optical measurements were performed in part at the Stanford Nanofabrication Facility's nSiL laboratory, which is funded by NSF award ARI-0963061. Publisher Copyright: © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.

PY - 2017/3/13

Y1 - 2017/3/13

N2 - As the record single-junction efficiencies of perovskite solar cells now rival those of copper indium gallium selenide, cadmium telluride and multicrystalline silicon, they are becoming increasingly attractive for use in tandem solar cells due to their wide, tunable bandgap and solution processability. Previously, perovskite/silicon tandems were limited by significant parasitic absorption and poor environmental stability. Here, we improve the efficiency of monolithic, two-terminal, 1-cm2 perovskite/silicon tandems to 23.6% by combining an infrared-tuned silicon heterojunction bottom cell with the recently developed caesium formamidinium lead halide perovskite. This more-stable perovskite tolerates deposition of a tin oxide buffer layer via atomic layer deposition that prevents shunts, has negligible parasitic absorption, and allows for the sputter deposition of a transparent top electrode. Furthermore, the window layer doubles as a diffusion barrier, increasing the thermal and environmental stability to enable perovskite devices that withstand a 1,000-hour damp heat test at 85 °C and 85% relative humidity.

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ER -

23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability

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