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Metal phthalocyanine: fullerene composite nanotubes via templating method for enhanced properties.

Ahmad Makinudin AH, Fakir MS, Supangat A - Nanoscale Res Lett (2015)

Bottom Line: VOPcPhO:PC71BM composite nanotubes showed the significant properties improvement if compared over their bulk heterojunction counterpart.Significant quenching has been attained by the photoluminescence spectra of VOPcPhO:PC71BM composite nanotubes which supports the redshift of UV-vis absorption spectra.Presumably, the photo-induced charge transfer and charge carrier dissociation can be enhanced from the VOPcPhO:PC71BM composite nanotubes rather than the bulk heterojunction.

View Article: PubMed Central - PubMed

Affiliation: Department of Physics, Low Dimensional Materials Research Centre, University of Malaya, Kuala Lumpur, 50603 Malaysia.

ABSTRACT
The use of templating method to synthesize the vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine (VOPcPhO):[6,6]-phenyl C71 butyric acid methyl ester (PC71BM) composite nanotubes is presented here. VOPcPhO is a p-type material and PC71BM is an n-type material which acts as an electron donor and electron acceptor, respectively. Both materials have been studied due to their potential applications as solar energy converter and organic electronics. High-resolution transmission electron microscope (HRTEM) and field emission scanning electron microscope (FESEM) images have shown the replication of the porous template diameter of approximately 200 nm with a superior incorporation of both VOPcPhO and PC71BM. VOPcPhO:PC71BM composite nanotubes showed the significant properties improvement if compared over their bulk heterojunction counterpart. UV-vis spectra of composite nanotubes show a shift to a longer wavelength at the absorption peaks. Significant quenching has been attained by the photoluminescence spectra of VOPcPhO:PC71BM composite nanotubes which supports the redshift of UV-vis absorption spectra. Presumably, the photo-induced charge transfer and charge carrier dissociation can be enhanced from the VOPcPhO:PC71BM composite nanotubes rather than the bulk heterojunction.

No MeSH data available.


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Photoluminescence spectra of VOPcPhO:PC71BM composite nanotubes and bulk heterojunction.
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Fig7: Photoluminescence spectra of VOPcPhO:PC71BM composite nanotubes and bulk heterojunction.

Mentions: The photoluminescence (PL) spectra of VOPcPhO:PC71BM bulk heterojunction and composite nanotubes are plotted in Figure 7. These PL spectra are obtained by an excitation wavelength of 325 nm which yield the range of wavelength between 600 and 900 nm. If compared to bulk heterojunction, PL spectrum suggests that the composite nanotube has exhibited a better photo-induced charge transfer between the donor/acceptor interfaces. This can be proven by the significant quenching phenomena shown in PL spectrum of composite nanotubes. As reported elsewhere, VOPcPhO has bipolar transport capabilities [9] which can act as either donor (p-type) or acceptor (n-type) material. Due to the compatible HOMO and LUMO values between VOPcPhO (3.32 and 5.33 eV) and PC71BM (3.9 and 6.0 eV), their structure as a donor/acceptor system can be accomplished. The efficient photon-induced charge transfer between VOPcPhO/PC71BM systems is one of the most significant characteristics of effective charge carriers' separation.Figure 7


Metal phthalocyanine: fullerene composite nanotubes via templating method for enhanced properties.

Ahmad Makinudin AH, Fakir MS, Supangat A - Nanoscale Res Lett (2015)

Photoluminescence spectra of VOPcPhO:PC71BM composite nanotubes and bulk heterojunction.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4384975&req=5

Fig7: Photoluminescence spectra of VOPcPhO:PC71BM composite nanotubes and bulk heterojunction.
Mentions: The photoluminescence (PL) spectra of VOPcPhO:PC71BM bulk heterojunction and composite nanotubes are plotted in Figure 7. These PL spectra are obtained by an excitation wavelength of 325 nm which yield the range of wavelength between 600 and 900 nm. If compared to bulk heterojunction, PL spectrum suggests that the composite nanotube has exhibited a better photo-induced charge transfer between the donor/acceptor interfaces. This can be proven by the significant quenching phenomena shown in PL spectrum of composite nanotubes. As reported elsewhere, VOPcPhO has bipolar transport capabilities [9] which can act as either donor (p-type) or acceptor (n-type) material. Due to the compatible HOMO and LUMO values between VOPcPhO (3.32 and 5.33 eV) and PC71BM (3.9 and 6.0 eV), their structure as a donor/acceptor system can be accomplished. The efficient photon-induced charge transfer between VOPcPhO/PC71BM systems is one of the most significant characteristics of effective charge carriers' separation.Figure 7

Bottom Line: VOPcPhO:PC71BM composite nanotubes showed the significant properties improvement if compared over their bulk heterojunction counterpart.Significant quenching has been attained by the photoluminescence spectra of VOPcPhO:PC71BM composite nanotubes which supports the redshift of UV-vis absorption spectra.Presumably, the photo-induced charge transfer and charge carrier dissociation can be enhanced from the VOPcPhO:PC71BM composite nanotubes rather than the bulk heterojunction.

View Article: PubMed Central - PubMed

Affiliation: Department of Physics, Low Dimensional Materials Research Centre, University of Malaya, Kuala Lumpur, 50603 Malaysia.

ABSTRACT
The use of templating method to synthesize the vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine (VOPcPhO):[6,6]-phenyl C71 butyric acid methyl ester (PC71BM) composite nanotubes is presented here. VOPcPhO is a p-type material and PC71BM is an n-type material which acts as an electron donor and electron acceptor, respectively. Both materials have been studied due to their potential applications as solar energy converter and organic electronics. High-resolution transmission electron microscope (HRTEM) and field emission scanning electron microscope (FESEM) images have shown the replication of the porous template diameter of approximately 200 nm with a superior incorporation of both VOPcPhO and PC71BM. VOPcPhO:PC71BM composite nanotubes showed the significant properties improvement if compared over their bulk heterojunction counterpart. UV-vis spectra of composite nanotubes show a shift to a longer wavelength at the absorption peaks. Significant quenching has been attained by the photoluminescence spectra of VOPcPhO:PC71BM composite nanotubes which supports the redshift of UV-vis absorption spectra. Presumably, the photo-induced charge transfer and charge carrier dissociation can be enhanced from the VOPcPhO:PC71BM composite nanotubes rather than the bulk heterojunction.

No MeSH data available.


Related in: MedlinePlus