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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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EDX spectrum of VOPcPhO:PC71BM composite nanotube.
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Fig3: EDX spectrum of VOPcPhO:PC71BM composite nanotube.

Mentions: HRTEM images of the individual VOPcPhO nanotubes are shown in Figure 2a,b. From the images, it is clearly illustrated that the VOPcPhO nanotubes are constructed prior to the infiltration of PC71BM. These HRTEM images are correlated with those obtained in FESEM images with the identical outer diameters observed. The broken tube at the tip of VOPcPhO nanotubes supported the formation of nanotubes rather than nanorods. VOPcPhO solution has evidently created a thin cylindrical coating of approximately 20 nm over the porous channel. Twenty-four hours of immersion is sufficient for the formation of thin nanotubes' outer walls to initiate which then further allow the infiltration of other materials. The successful second infiltration is supported by TEM images shown in Figure 2c,d. Two dissimilar regions (light and dark) compose of VOPcPhO and PC71BM are clearly perceived from the TEM images of VOPcPhO:PC71BM composite nanotubes. VOPcPhO:PC71BM composite has successfully created a tubular shape nanotube via the immersion and spin coating technique of porous alumina templates. To further corroborate the existence of VOPcPhO:PC71BM composite, energy-dispersive X-ray spectroscope (EDX) analysis is performed and the spectrum is shown in Figure 3. The identified elements such as carbon (C), oxygen (O), and vanadium (V) support the presence of VOPcPhO:PC71BM composite, while other detected elements of sodium (Na) and copper (Cu) correspond to the sodium hydroxide (dissolution solvent) and sample holder, respectively.Figure 2


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

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

EDX spectrum of VOPcPhO:PC71BM composite nanotube.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Fig3: EDX spectrum of VOPcPhO:PC71BM composite nanotube.
Mentions: HRTEM images of the individual VOPcPhO nanotubes are shown in Figure 2a,b. From the images, it is clearly illustrated that the VOPcPhO nanotubes are constructed prior to the infiltration of PC71BM. These HRTEM images are correlated with those obtained in FESEM images with the identical outer diameters observed. The broken tube at the tip of VOPcPhO nanotubes supported the formation of nanotubes rather than nanorods. VOPcPhO solution has evidently created a thin cylindrical coating of approximately 20 nm over the porous channel. Twenty-four hours of immersion is sufficient for the formation of thin nanotubes' outer walls to initiate which then further allow the infiltration of other materials. The successful second infiltration is supported by TEM images shown in Figure 2c,d. Two dissimilar regions (light and dark) compose of VOPcPhO and PC71BM are clearly perceived from the TEM images of VOPcPhO:PC71BM composite nanotubes. VOPcPhO:PC71BM composite has successfully created a tubular shape nanotube via the immersion and spin coating technique of porous alumina templates. To further corroborate the existence of VOPcPhO:PC71BM composite, energy-dispersive X-ray spectroscope (EDX) analysis is performed and the spectrum is shown in Figure 3. The identified elements such as carbon (C), oxygen (O), and vanadium (V) support the presence of VOPcPhO:PC71BM composite, while other detected elements of sodium (Na) and copper (Cu) correspond to the sodium hydroxide (dissolution solvent) and sample holder, respectively.Figure 2

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