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 & 3 others Zachary Holman, Stacey F. Bent, Michael D. McGehee

Research output: Contribution to journalArticle

437 Citations (Scopus)

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 languageEnglish (US)
Article number17009
JournalNature Energy
Volume2
Issue number4
DOIs
StatePublished - Mar 13 2017

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Silicon
Perovskite
Solar cells
Cadmium telluride
Cesium
Sputter deposition
Indium
Diffusion barriers
Atomic layer deposition
Gallium
Buffer layers
Tin oxides
Heterojunctions
Copper
Atmospheric humidity
Energy gap
perovskite
Infrared radiation
Electrodes
Hot Temperature

ASJC Scopus subject areas

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

Cite this

Bush, K. A., Palmstrom, A. F., Yu, Z., Boccard, M., Cheacharoen, R., Mailoa, J. P., ... McGehee, M. D. (2017). 23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability. Nature Energy, 2(4), [17009]. https://doi.org/10.1038/nenergy.2017.9

23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability. / Bush, Kevin A.; Palmstrom, Axel F.; Yu, Zhengshan; Boccard, Mathieu; Cheacharoen, Rongrong; Mailoa, Jonathan P.; McMeekin, David P.; Hoye, Robert L.Z.; Bailie, Colin D.; Leijtens, Tomas; Peters, Ian Marius; Minichetti, Maxmillian C.; Rolston, Nicholas; Prasanna, Rohit; Sofia, Sarah; Harwood, Duncan; Ma, Wen; Moghadam, Farhad; Snaith, Henry J.; Buonassisi, Tonio; Holman, Zachary; Bent, Stacey F.; McGehee, Michael D.

In: Nature Energy, Vol. 2, No. 4, 17009, 13.03.2017.

Research output: Contribution to journalArticle

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
Bush, Kevin A. ; Palmstrom, Axel F. ; Yu, Zhengshan ; Boccard, Mathieu ; Cheacharoen, Rongrong ; Mailoa, Jonathan P. ; McMeekin, David P. ; Hoye, Robert L.Z. ; Bailie, Colin D. ; Leijtens, Tomas ; Peters, Ian Marius ; Minichetti, Maxmillian C. ; Rolston, Nicholas ; Prasanna, Rohit ; Sofia, Sarah ; Harwood, Duncan ; Ma, Wen ; Moghadam, Farhad ; Snaith, Henry J. ; Buonassisi, Tonio ; Holman, Zachary ; Bent, Stacey F. ; McGehee, Michael D. / 23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability. In: Nature Energy. 2017 ; Vol. 2, No. 4.
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