Carbon Nanotubes for Dye-Sensitized Solar Cells

Batmunkh, Munkhbayar; Biggs, Mark J.; Shapter, Joseph G.

doi:10.1002/smll.201403155

Cited by 131 publications

(71 citation statements)

References 352 publications

(549 reference statements)

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“…Since the conductive nature of carbons is an asset for electron‐transfer processes, there are reports in the literature addressing graphene and graphene oxide,180 carbon nanotubes,181 and CQDs167, 182, 183, 184 as electrodes for dye‐sensitized solar cells185, 186 and perovskite solar cells 187. Moreover, graphene‐based solar cells are also the subjects of photovoltaic studies 188.…”

Section: Foreseen Applicationsmentioning

confidence: 99%

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Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Bandosz

Ania

2018

Advanced Science

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Even though, owing to the complexity of nanoporous carbons' structure and chemistry, the origin of their photoactivity is not yet fully understood, the recent works addressed here clearly show the ability of these materials to absorb light and convert the photogenerated charge carriers into chemical reactions. In many aspects, nanoporous carbons are similar to graphene; their pores are built of distorted graphene layers and defects that arise from their amorphicity and reactivity. As in graphene, the photoactivity of nanoporous carbons is linked to their semiconducting, optical, and electronic properties, defined by the composition and structural defects in the distorted graphene layers that facilitate the exciton splitting and charge separation, minimizing surface recombination. The tight confinement in the nanopores is critical to avoid surface charge recombination and to obtain high photochemical quantum yields. The results obtained so far, although the field is still in its infancy, leave no doubts on the possibilities of applying photochemistry in the confined space of carbon pores in various strategic disciplines such as degradation of pollutants, solar water splitting, or CO2 mitigation. Perhaps the future of photovoltaics and smart‐self‐cleaning or photocorrosion coatings is in exploring the use of nanoporous carbons.

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Section: Foreseen Applicationsmentioning

confidence: 99%

“…Batmunkh et al have discussed the methods of graphene modifications to improve its interactions with dyes 185, 186, 187. It has been found that chemical treatment of graphene improves its interactions with dyes and has an effect on the size of the bandgap.…”

Section: Foreseen Applicationsmentioning

confidence: 99%

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Bandosz

Ania

2018

Advanced Science

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“…A 7:2 mixture of 98% of H 2 SO 4 and phosphoric acid (82%H 3 PO 4 ) (221:8mL) was refrigerated at a temperature of about 4 o C. It was then mixed with about 3.5g of graphite flakes and 13.5g of KMnO 4 (97%). The detail of preparation procedure can be found in [27][28]. The solution'' temperature was controlled by cool 320ml H 2 O together with 4mL hydrogen peroxide.…”

Section: Preparation Of Graphenementioning

confidence: 99%

“…The glass beaker containing 85 mL DI water at 8mg of GO content was "ultrasonicated" for 3hrs after which about 1.7 g of SnCl 2 ·2H 2 O was mixed with 220 mL of 0.12M HCl solution [27][28]. The GO dispersion was mixed with the tin (II) chloride solution and then stirred for 25 minutes.…”

Section: Preparation Of Graphenementioning

confidence: 99%

Efficiency of FTO/Graphene-based Dye-Sensitized Solar Cell

Awodugba¹,

Yusuf²

2017

Preprint

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The focus of this research is to improve the performance of dye-sensitized solar cells (DSSC) through the adoption of high-quality FTO thin films and incorporation of graphene with DSSC photoanode to enhance its electrical transport. In this research, nanostructured FTO films were first grown with homemade Streaming Process for Electroless and Electrochemical Deposition technology (SPEED) using Tin (II) chloride dihydrate and ammonium fluoride and other chemical formulations. The FTO structural property was measured by X-ray diffraction (XRD); the films' optical property was determined with transmittance spectra to curve over the wavelength range of 200-1000 nm measured with a spectrophotometer while scanning electron microscope (SEM) was used to determine the morphological properties of the samples. The electrical transport was evaluated by Hall Effect measurements at room temperature with a four-point probe. The FTO samples with the best structural, optical and electrical properties were employed as electrodes and counter electrodes of DSSC along with titanium dioxide. Thus, effect of graphene on the efficiency of DSSC was investigated. It was shown that a graphene-based DSSC showed an efficiency of 7.98% which is slightly higher than that of DSSC prototype without graphene (6.02%). The higher efficiency obtained with graphene can be credited to the ultrahigh surface area and thermal conductivity of graphene which tend to enhance the charge mobility and photovoltaic performance of DSSC. More research is however required to determine the exact amount of graphene that could achieve optimal DSSC performance. Further studies will also offer an adequate clarification for starting point of the better incorporation of graphene in DSSCs.

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“…During the last decade or so, the potential benefits of using carbon nanotubes in solar cells has been explored from both a fundamental theory point of view [1–2], as well as experimentally in a host of different device architectures, including as additives in dye solar cells [3–4], organic photovoltaics [5–6], and perovskites [7–8] and as the active light absorbing component in conjunction with acceptors such as fullerenes [9–12]. Carbon nanotube–silicon heterojunctions can also function as solar cells [13–14] and over the last few years of development the power conversion efficiency (PCE) of these devices has been steadily increasing [15–22], with the most recent high efficiency record by Wang et al now standing at ≈17% [23].…”

Section: Introductionmentioning

confidence: 99%

The effect of dry shear aligning of nanotube thin films on the photovoltaic performance of carbon nanotube–silicon solar cells

Stolz¹,

Tune

Flavel³

2016

Beilstein J. Nanotechnol.

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SummaryRecent results in the field of carbon nanotube–silicon solar cells have suggested that the best performance is obtained when the nanotube film provides good coverage of the silicon surface and when the nanotubes in the film are aligned parallel to the surface. The recently developed process of dry shear aligning – in which shear force is applied to the surface of carbon nanotube thin films in the dry state, has been shown to yield nanotube films that are very flat and in which the surface nanotubes are very well aligned in the direction of shear. It is thus reasonable to expect that nanotube films subjected to dry shear aligning should outperform otherwise identical films formed by other processes. In this work, the fabrication and characterisation of carbon nanotube–silicon solar cells using such films is reported, and the photovoltaic performance of devices produced with and without dry shear aligning is compared.

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Carbon Nanotubes for Dye-Sensitized Solar Cells

Cited by 131 publications

References 352 publications

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Efficiency of FTO/Graphene-based Dye-Sensitized Solar Cell

The effect of dry shear aligning of nanotube thin films on the photovoltaic performance of carbon nanotube–silicon solar cells

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