Co-grafting of porphyrins and fullerenes on ZnO nanorods: Towards supramolecular donor–acceptor assembly

Shah, Syed Mujtaba; Kira, Aiko; Imahori, Hiroshi; Ferry, Daniel; Brisset, Hugues; Fagès, Frédéric; Ackermann, Jörg

doi:10.1016/j.jcis.2012.06.037

Cited by 19 publications

(11 citation statements)

References 58 publications

(61 reference statements)

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“…289 ZnO micro-290 and nano-rods, [291][292][293][294] were also prepared by hydrothermal transformation of zinc salts in aqueous solutions and subsequent heating, the duration of which affected the rod length. An example is shown in Figure 78, where, starting from a seed layer, ZnO nanorods grown at 80°C are reported, after 2, 4 and 10 hours, respectively.…”

Section: Zinc Oxidementioning

confidence: 99%

“…270 By and large, chemisorption is the most used method because of the basic character of the ZnO surface. Thus, porphyrins containing functional groups with acidic OH (carboxylic acid, 219,271,272,274,[276][277][278]281,[285][286][287]291,[293][294][295]297,298 sulfonic acid 279,283,284 and cathecol 275,282 ) were easily grafted onto ZnO 2 .…”

Section: Zinc Oxidementioning

confidence: 99%

“…Then, a 2,3-fullerocyclopropane-1,1-dicarboxylic acid (C 60 -acid) solution in the same solvent was added and stirred for an additional 16 hours ( Figure 81). 291 A somewhat longer procedure was used to obtain ternary composites of porphyrins, zinc oxide nanoparticles and reduced graphene oxide. 277 A dispersion of GO sheets coated with ZnO nanoparticles was prepared and a methanol solution of zinc 5,10,15,20-tetrakis(2,4,6-trimethylphenyl)-6′-carboxyquinoxalino[2,3-β]porphyrin (Figure 82) was added and stirred for one hour.…”

Section: Zinc Oxidementioning

confidence: 99%

“…Later, other parameters were investigated, such as polarity of the solvent and porphyrin to fullerene ratios, using compounds in Figure 81. 291 Charge transfer complex formation between porphyrin and fullerene was evidenced only in polar solvents. CT absorption and emission bands appear at porphyrin/fullerene ratio of 1:3 and increase in intensity until the ratio reaches 1:6.…”

Section: Zinc Oxidementioning

confidence: 99%

See 3 more Smart Citations

Porphyrins as Active Components for Electrochemical and Photoelectrochemical Devices

Galloni¹,

Vecchi²,

Coletti³

et al. 2014

Handbook of Porphyrin Science

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Section: Zinc Oxidementioning

confidence: 99%

Section: Zinc Oxidementioning

confidence: 99%

Section: Zinc Oxidementioning

confidence: 99%

Section: Zinc Oxidementioning

confidence: 99%

See 2 more Smart Citations

Porphyrins as Active Components for Electrochemical and Photoelectrochemical Devices

Galloni¹,

Vecchi²,

Coletti³

et al. 2014

Handbook of Porphyrin Science

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“…[18] Supramolecular aggregation of porphyrin and fullerene derivatives received much attention, owing to their unique spectroscopic and electrochemical features, namely strong ground state absorption throughout the UV-vis spectral region, characteristic luminescence patterns, diagnostic transient absorption signals, and complementary electron donor/acceptor properties. [19,20] In the present study, we carried out detailed UV-vis absorption, fluorescence, and fourier transform infrared (FTIR) measurements on porphyrin and fullerene molecules chemisorbed on the surface of ZnO nanoparticles to prevent aggregation of porphyrin and investigate interaction behaviours between the porphyrin, fullerene, and ZnO nanoparticles. The system behaved as a hybrid triad involving organic and inorganic constituents.…”

Section: Introductionmentioning

confidence: 99%

Role of Pristine and Acid-Functionalized Fullerene on Breaking Dye Aggregates and its Impact on the Efficiency of Solar Cells

Shah

Iqbal

et al. 2014

Aust. J. Chem.

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Porphyrin dyes have an inherent tendency to aggregate. This leads to a self-quenching phenomenon that hinders electron transfer to the conduction band of semiconductors in dye-sensitized solar cells. Self-quenching adversely affects the efficiency of solar cells. Here, we report the interaction of porphyrin with pristine and acid-functionalized fullerene molecules on the surface of ZnO nanoparticles under chemisorbed conditions. Chemisorption of porphyrin only on ZnO nanoparticles instigates aggregation of the porphyrin molecules. These aggregates can be effectively broken by chemisorbing fullerene molecules on the surface of the ZnO nanoparticles. This is due to self-assembly formation processes because of porphyrin-fullerene interactions. The nanohybrid material, consisting of ZnO nanorods, acidfunctionalized porphyrin, and fullerene derivatives, was characterized by UV-visible spectroscopy, fourier transform infrared spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. The material generates better performing dye-sensitized solar cells when compared with those fabricated from porphyrin-based photo-active material.

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Stretchable, Breathable, and Stable Lead‐Free Perovskite/Polymer Nanofiber Composite for Hybrid Triboelectric and Piezoelectric Energy Harvesting

et al. 2022

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Halide‐perovskite‐based mechanical energy harvesters display excellent electrical output due to their unique ferroelectricity and dielectricity. However, their high toxicity and moisture sensitivity impede their practical applications. Herein, a stretchable, breathable, and stable nanofiber composite (LPPS‐NFC) is fabricated through electrospinning of lead‐free perovskite/poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) and styrene–ethylene–butylene–styrene (SEBS). The Cs3Bi2Br9 perovskites serve as efficient electron acceptors and local nucleating agents for the crystallization of polymer chains, thereby enhancing the electron‐trapping capacity and polar crystalline phase in LPPS‐NFC. The excellent energy level matching between Cs3Bi2Br9 and PVDF‐HFP boosts the electron transfer efficiency and reduces the charge loss, thereby promoting the electron‐trapping process. Consequently, this LPPS‐NFC‐based energy harvester displays an excellent electrical output (400 V, 1.63 µA cm−2, and 2.34 W m−2), setting a record of the output voltage among halide‐perovskite‐based nanogenerators. The LPPS‐NFC also exhibits excellent stretchability, waterproofness, and breathability, enabling the fabrication of robust wearable devices that convert mechanical energy from different biomechanical motions into electrical power to drive common electronic devices. The LPPS‐NFC‐based energy harvesters also endure extreme mechanical deformations (washing, folding, and crumpling) without performance degradation, and maintain stable electrical output up to 5 months, demonstrating their promising potential for use as smart textiles and wearable power sources.

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Co-grafting of porphyrins and fullerenes on ZnO nanorods: Towards supramolecular donor–acceptor assembly

Cited by 19 publications

References 58 publications

Porphyrins as Active Components for Electrochemical and Photoelectrochemical Devices

Porphyrins as Active Components for Electrochemical and Photoelectrochemical Devices

Role of Pristine and Acid-Functionalized Fullerene on Breaking Dye Aggregates and its Impact on the Efficiency of Solar Cells

Stretchable, Breathable, and Stable Lead‐Free Perovskite/Polymer Nanofiber Composite for Hybrid Triboelectric and Piezoelectric Energy Harvesting

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