Functionalized nanodiamond as a charge transporter in organic solar cells

Lau, Xinbo C.; Desai, C. M.; Mitra, Somenath

doi:10.1016/j.solener.2013.01.024

Cited by 34 publications

(10 citation statements)

References 33 publications

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“…In recent years carbon allotropes, such as nanodiamonds, have shown promising new applications in many fields due to its physical, chemical and surface characteristics. Their high electron mobility, field electron emission and magnetic properties 1 make them important players in carbon based electronics 2 3 . Their tribological and mechanical 1 4 5 properties give rise to harder coatings 1 5 , which are biocompatible and can provide improved biological prosthesis joints 6 with decreased wear.…”

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confidence: 99%

Synthesis of diamond-like phase from graphite by ultrafast laser driven dynamical compression

Maia

Samad

Bettini

et al. 2015

Sci Rep

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Rapid variations of the environmental energy caused by ultrashort laser pulses have induced phase transitions in carbon allotropes, therefore bringing the promise of revealing new carbon phases. Here, by exposing polycrystalline graphite to 25 fs laser pulses at 4 J/cm2 fluence under standard air atmosphere, we demonstrated the synthesis of translucent micrometer-sized structures carrying diamond-like and onion-like carbon phases. Texturized domains of the diamond phase were also identified. Concerning different synthesized carbon forms, pulse superposition and singularities of the thermodynamical process, we pinpoint the synthesis mechanism by the laser-induced subsequent products energetically evolving to attain the diamond-like phase.

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confidence: 99%

Synthesis of diamond-like phase from graphite by ultrafast laser driven dynamical compression

Maia

Samad

Bettini

et al. 2015

Sci Rep

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“…Actually,acovalently bonded nanocomposite of hydroxylated C 60 (C 60 -OH) andN D was fabricated via am icrowave-induced functionalization approach by Mitra and co-workers. [12] They utilized the obtained C 60 -OH-ND nanocomposite in OPVs with an electron-donating conjugated polymerp oly(3-hexylthiophene) and suggestedi ts usefulness as an effective electron acceptora nd transporter. However, owing to the low power conversion efficiency of 0.51 %a nd the use of the microwave reactor as an onprevalent equipmenti nc hemistry laboratories, further investigations of C 60 -ND nanocomposites have yet to be reported.…”

Section: Introductionmentioning

confidence: 99%

“…To harness the fascinating properties of ND, hybridization of C 60 with ND is attractive to create novel all‐carbon optoelectronic materials. Actually, a covalently bonded nanocomposite of hydroxylated C 60 (C 60 ‐OH) and ND was fabricated via a microwave‐induced functionalization approach by Mitra and co‐workers . They utilized the obtained C 60 ‐OH‐ND nanocomposite in OPVs with an electron‐donating conjugated polymer poly(3‐hexylthiophene) and suggested its usefulness as an effective electron acceptor and transporter.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous Complexation of Fullerene Aggregates on Nanodiamond Aggregates and Their Enhanced Photocurrent Generation

Umeyama

Okawada

Ohara

et al. 2019

Chemistry An Asian Journal

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Supramolecular composites composed of fullerene C60 and carbon nanodiamond (ND) were constructed through spontaneous complexation of C60 aggregates onto the surface of ND aggregates in N‐methylpyrrolidone (NMP). The resulting C60‐ND composite was assembled onto a nanostructured SnO2 electrode by an electrophoretic deposition method. Formation of the C60‐ND composite was confirmed by dynamic light scattering (DLS) and field‐emission scanning electron microscopy (FESEM). The C60‐ND composite on the SnO2 electrode showed high incident photon‐to‐current efficiencies (IPCEs) in the visible region as compared with the single component system of C60 or ND. The improved photocurrent generation of the C60‐ND composite may result from the photoinduced charge separation at the interface between C60 and ND. These results obtained here will provide valuable information on the design of optoelectronic devices based on all‐nanocarbon materials.

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“…NDs comprise of a diamond core (sp 3 ), a middle core (sp 2?x ) and a graphitic outer core (sp 2 ). The highest occupied molecular orbital and lowest unoccupied molecular orbital energies of NDs are quite uniform *5.5 eV and *3.0 eV, respectively [6,7]. NDs also have charge mobility properties which increase with temperature, possibly by carrier hopping between localized states introduced by the inhomogeneity, with the coulomb blockade playing a role.…”

Section: Introductionmentioning

confidence: 99%

Dye sensitized solar cell efficiency improvement using TiO2/nanodiamond nano composite

Tafti

Sadeghzadeh

2018

Sādhanā

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This paper aims to demonstrate the efficiency and recombination improvement of Dye-sensitized solar cells (DSSCs) by introducing of a Nanodiamond (NDs)-TiO 2 nano composite. The main challenge in the proposed application is to find the optimal wt.% of ND in TiO 2. The experimental tests were conducted to compare the developed NDs/TiO 2 cell with one of pure TiO 2 nanoparticles prepared in the same conditions. It was observed that short circuit current density, power conversion efficiency, fill factor and electron life time enhanced with increasing ND content. The best performance was obtained with 1 wt.% ND content; with a current density of 12.11 mA/cm 2 and light-to-electricity conversion efficiency of 4.95%. The improvement in efficiency of 18.7% was obtained as the standard DSSC was compared with that of pure TiO 2. Keywords. Dye sanitized solar cells; nanodiamond / TiO 2 nano composite; charge carrier; electron life time; photovoltaic.

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Functionalized nanodiamond as a charge transporter in organic solar cells

Cited by 34 publications

References 33 publications

Synthesis of diamond-like phase from graphite by ultrafast laser driven dynamical compression

Synthesis of diamond-like phase from graphite by ultrafast laser driven dynamical compression

Spontaneous Complexation of Fullerene Aggregates on Nanodiamond Aggregates and Their Enhanced Photocurrent Generation

Dye sensitized solar cell efficiency improvement using TiO2/nanodiamond nano composite

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