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Rapid Charge-Transfer Cascade through SWCNT Composites Enabling Low-Voltage Losses for Perovskite Solar Cells AITranslate

Severin N. Habisreutinger; Nakita K. Noel; Bryon W. Larson; Obadiah G. Reid; Jeffrey L. Blackburn;
National Renewable Energy Laboratory; Princeton University; National Renewable Energy Laboratory; University of Colorado at Boulder; National Renewable Energy Laboratory
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Publisher: ACS
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Abstract AITranslate

Good charge selective contacts are vital to achieving efficient perovskite solar cells. The selectivity of such a contact is determined by its energetic offset or alignment with the bands of the perovskite absorber and, most importantly, by its interfacial recombination losses. In this study, we use single-walled carbon nanotubes (SWCNTs) as a high-mobility hole extraction layer at the interface with a perovskite absorber. When employed as a charge-transfer cascade-like structure with a low-mobility hole-selective contact, this configuration can suppress the interfacial recombination through the rapid removal of holes from the interface region. Reducing these recombination losses in turn results in very low voltage losses of less than 340 mV in n-i-p perovskite solar cells.

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DOI：https://doi.org/10.1021/acsenergylett.9b01041

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Citation Information:

Good charge selective contacts are vital to achieving efficient perovskite solar cells. The selectivity of such a contact is determined by its energetic offset or alignment with the bands of the perovskite absorber and, most importantly, by its interfacial recombination losses. In this study, we use single-walled carbon nanotubes (SWCNTs) as a high-mobility hole extraction layer at the interface with a perovskite absorber. When employed as a charge-transfer cascade-like structure with a low-mobility hole-selective contact, this configuration can suppress the interfacial recombination through the rapid removal of holes from the interface region. Reducing these recombination losses in turn results in very low voltage losses of less than 340 mV in n-i-p perovskite solar cells.

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GB/T 7714-2015 [1] Severin N. Habisreutinger, Nakita K. Noel, Bryon W. Larson, et al. ACS Energy Letters, 2019(4). DOI:10.1021/acsenergylett.9b01041.
MLA [1] Severin N. Habisreutinger, et al., ACS Energy Letters, no. 4, 2019, https://doi.org/10.1021/acsenergylett.9b01041.
APA [1] Severin N. Habisreutinger, Nakita K. Noel, Bryon W. Larson, Obadiah G. Reid, & Jeffrey L. Blackburn. (2019). ACS Energy Letters(4). https://doi.org/10.1021/acsenergylett.9b01041
IEEE [1] Severin N. Habisreutinger, Nakita K. Noel, Bryon W. Larson, Obadiah G. Reid, and Jeffrey L. Blackburn, ACS Energy Letters, no. 4, 2019, doi: 10.1021/acsenergylett.9b01041.