2015
DOI: 10.1021/acs.nanolett.5b02490
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Single-Walled Carbon Nanotube Film as Electrode in Indium-Free Planar Heterojunction Perovskite Solar Cells: Investigation of Electron-Blocking Layers and Dopants

Abstract: PSS as an electron-blocking layer on SWNTs in perovskite SCs due to superior wettability, whereas MoO3 is not compatible owing to energy level mismatching. Diluted HNO3 (35 v/v%)-doped SWNT-based device produced the highest PCE of 6.32% among SWNT-based perovskite SCs, which is 70% of an indium tin oxide (ITO)-based device (9.05%). Its flexible application showed a PCE of 5.38% on polyethylene terephthalate (PET) substrate.

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Cited by 181 publications
(147 citation statements)
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“…This is already well-established method in the application of PEDOT:PSS in inverted organic solar cells [14], but the effects of these procedures were not fully investigated when PEDOT:PSS is applied in ECDs. Figure 1 shows images of aqueous PEDOT:PSS droplet onto PET/ITO surface.…”
Section: Uv-vis Transmittancementioning
confidence: 99%
“…This is already well-established method in the application of PEDOT:PSS in inverted organic solar cells [14], but the effects of these procedures were not fully investigated when PEDOT:PSS is applied in ECDs. Figure 1 shows images of aqueous PEDOT:PSS droplet onto PET/ITO surface.…”
Section: Uv-vis Transmittancementioning
confidence: 99%
“…The only alternative to PEDOT:PSS tested to date are carbon nanotubes, but the PCE is limited to 5.4%. 155 Besides demonstrating the full range of flexibility of perovskite, the PEDOT:PSS-based devices also demonstrated ultra-lightweight capability. The best devices, with a PCE of 12%, were fabricated on a ultrathin 1.4 mm thick PET film (see Fig.…”
Section: Tco-free Flexible Perovskite Solar Cellsmentioning
confidence: 99%
“…However, the brittle properties of ITO significantly decrease the conductivity under deformation, limiting its applications in the ultra-flexible solar cells. 35,36 Conductive polymers, such as poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS), 36 and carbon materials, such as carbon nanotubes and graphene, 32,37,38 have also been investigated for use as an ITO alternative electrode for flexible solar cells. However, the conductivity or transparency of these electrodes is much lower than those of the ITO-based electrodes, which result in lower solar cell efficiency compared with that of the ITO electrode-based solar cells.…”
Section: Solution-processed Flexible Electrodementioning
confidence: 99%