2009
DOI: 10.1021/jp809944d
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Multiwall Carbon Nanotubes Decorated with Copper Nanoparticles: Effect on the Photocurrent Response

Abstract: Photocurrent generation measured with an electrochemical cell on carbon nanotubes has been obtained mainly from single-walled nanostructures. In fact, multiwall carbon nanotubes (MWCNTs) were not expected to show analogous low-dimensional effects, due to their close similarity to metallic graphite. Recently we reported on the ability of MWCNTs to generate photocurrent in the visible and ultraviolet spectral range. In this paper we show a significant enhancement in the photocurrent generation when the walls of … Show more

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Cited by 35 publications
(28 citation statements)
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“…The maximum IPCE value is located in the ultraviolet spectral region, confirming the results reported in similar recent experiments. [18][19][20] The maximum IPCE values from the three sets of samples and that of the MWCNT have been collected in Table I for better clarity.…”
mentioning
confidence: 99%
“…The maximum IPCE value is located in the ultraviolet spectral region, confirming the results reported in similar recent experiments. [18][19][20] The maximum IPCE values from the three sets of samples and that of the MWCNT have been collected in Table I for better clarity.…”
mentioning
confidence: 99%
“…Interestingly, these materials exhibited a significantly enhanced catalytic activity in the reduction of 4-nitrophenol to produce 4-aminophenol [21]. In this context, the modification of CNTs with Cu-NPs or its oxides [22][23][24] also becomes an attractive possibility to use these hybrid materials as nanoelectronic devices [23] or as novel catalysts when used as electrodes for the electrochemical sensing of carbohy-drates [22,[25][26][27].…”
Section: Introductionmentioning
confidence: 99%
“…In order to anchor NPs on the surface of CNTs, different methods such as the reduction of metal salts [30][31][32][33], deposition of NPs on CNTs by thermal evaporation [23] or using hyperbranched polymers [21] can be used. Specifically, for the deposition of Cu-NPs on CNTs, numerous authors have reported different approaches including calcination treatments [24], chemical reduction [22], and microwave radiation [34].…”
Section: Introductionmentioning
confidence: 99%
“…1-3 Photovoltaic effect can be achieved in individual single wall carbon nanotubes, by inducing an ideal p-n junction diode, 4 as well as in both single wall [5][6][7][8][9][10] and multiwall carbon nanotube (MWCNT) networks [11][12][13][14][15] over the visible and near ultraviolet spectral range. This is particularly related to CNT unique electronic properties.…”
Section: Introductionmentioning
confidence: 99%