High-performance hole conductor-free perovskite solar cell using a carbon nanotube counter electrode

Mohammed, Mustafa K. A.

doi:10.1039/d0ra05975g

Cited by 41 publications

(26 citation statements)

References 44 publications

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“…The X-ray pattern of Ag-doped TiO 2 NPs shows a mixed phase of an anatase and rutile phase, while the standard TiO 2 shows rutile-only phase. The average crystallite sizes of the standard TiO 2 and Ag-doped TiO 2 were found to be 60 nm and 25 nm, respectively, as determined by the Scherrer formula [28][29][30]. Also, XRD clearly exhibits TiO 2 peaks without any related pattern corresponding to Ag.…”

Section: Resultsmentioning

confidence: 90%

Effects of the surface of solar-light photocatalytic activity of Ag-doped TiO2 nanohybrid material prepared with a novel approach

et al. 2021

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Surface modi cation with a nanomaterial has been con rmed to be an effective strategy to enhance the visible-light photodegradation e ciency of titanium dioxide nanoparticles (TiO 2 -NPs). In this regard, we used silver as an additive into TiO2-NPs to improve their photodegradation activity under visible light irradiation. Herein, a novel and eco-friendly process was developed to prepare the Ag-doped TiO 2 nanohybrid and named as photon-induced method (PIM). The XRD technique showed that the prepared Ag-doped TiO 2 has mixed phases of anatase and rutile. However, the rutile-only phase was detected for the pure TiO 2 -NPs at 700°C of calcination. Ultraviolet-visible (UV-vis) absorption spectra revealed a reduction in the bandgap energy of TiO 2 after Ag doping. Besides, the addition of Ag resulted in a signi cant improvement of TiO 2 morphology. Methlyene blue (MB) dye was chosen to be an organic target to investigate the photocatalyst activity of the TiO 2 -NPs. In this regard, the degradation rate of MB was found to be 100% for the Ag-doped TiO 2 , which is higher than that of pure rutile TiO 2 . The incorporation of Ag additive plays a signi cant role in the improvement of TiO 2 stability and photodegradation performance due to the surface plasmon resonance phenomenon.

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Section: Resultsmentioning

confidence: 90%

Effects of the surface of solar-light photocatalytic activity of Ag-doped TiO2 nanohybrid material prepared with a novel approach

et al. 2021

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“…The band gap of CNTs could also change with the change of diameter, and had a W f of -4.95 eV. [81][82][83][84][85][86][87] Furthermore, the mechanical property of CNTs was proved to be extremely beneficial for the exploitation of flexible PSCs. 88,89 Compared with the high treated .…”

Section: Carbon Nanotubementioning

confidence: 99%

Carbon-based electrodes for perovskite solar cells

et al. 2021

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“…For these reasons, this architecture is considered to be the front runner to the PV market [8]. Today, the record PCE of C-based HTL-free PSCs exceeds 15%, while their outstanding stability has been demonstrated by many research groups [9][10][11]. One noteworthy achievement was attained by Tao et al, who developed a fully ambient air-processed C-based HTL-free PSC that is able to provide 16.25% PCE and retains >90% of its initial performance for 22 weeks [10].…”

Section: Introductionmentioning

confidence: 99%

Toward a Scalable Fabrication of Perovskite Solar Cells under Fully Ambient Air Atmosphere: From Spin-Coating to Inkjet-Printing of Perovskite Absorbent Layer

et al. 2021

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Up until now, the vast majority of perovskite solar cells (PSCs) have relied on the spin-coating of perovskite precursor solution under inert fully controlled conditions, with the performance of solar cells that are developed by alternative techniques and under an ambient atmosphere to lag far behind. This impedes the technology transfer from the laboratory to industrial large-scale production; thus, the investigation of new scalable techniques should be thoroughly considered. The present work constitutes one of the few investigations on the application of inkjet-printing as an advanced alternative technique to the conventional spin-coating technique used for the fabrication of fully ambient air-processed perovskite absorbent layers for carbon-based hole transport layer-free PSCs. A systematic study of the characteristics of the perovskite material and solar cells indicated that the coffee-ring effect combined with poor ink penetration into the mesoporous network of the anode semiconductor were the main reasons for obtaining poor perovskite structure morphology and lower PSC performance by inkjet-printing, which arises from a lower internal quantum efficiency and an increased charge transfer and recombination rate. On the other hand, the crystallinity and optical characteristics of the materials obtained by the compared techniques did not differ considerably, while small differences were observed in the hysteretic behavior and long-term stability of the solar cells.

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High-performance hole conductor-free perovskite solar cell using a carbon nanotube counter electrode

Abstract: Carbon-based perovskite solar cells (C-PSCs) are the most promising photovoltaic (PV) due to their low material and manufacturing cost and superior long-term stability.

Cited by 41 publications

References 44 publications

Effects of the surface of solar-light photocatalytic activity of Ag-doped TiO2 nanohybrid material prepared with a novel approach

Effects of the surface of solar-light photocatalytic activity of Ag-doped TiO2 nanohybrid material prepared with a novel approach

Carbon-based electrodes for perovskite solar cells

Toward a Scalable Fabrication of Perovskite Solar Cells under Fully Ambient Air Atmosphere: From Spin-Coating to Inkjet-Printing of Perovskite Absorbent Layer

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