2002
DOI: 10.1039/b201405j
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Abstract: Aligned microtubular heterojunctions of poly(p-phenylene) (PPP) and polythiophene (PTh) were fabricated by successive electrochemical oxidations of benzene and thiophene in freshly distilled boron trifluoride-diethyl ether (BFEE) solution and using a microporous alumina membrane with pores of 200 nm diameter as the template. The morphology and chain structure of the microtubular heterojunctions were studied by scanning and transmission electron microscopies and Raman spectroscopy. The current (I)-voltage (V) c… Show more

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Cited by 75 publications
(23 citation statements)
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References 19 publications
(22 reference statements)
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“…It is clear from the spectra of oligomers ( Fig. 7(a) and (b)), the band at about 1621 cm À1 can be assigned to the stretching mode of C@C backbone, which divided into two peaks attributed to the C@C bonds stretching of the oxidized and the reduced species [26,27]. The strong 1387 cm À1 band belongs to C-C inter-ring stretching.…”
Section: Structure Of Oligopyrenementioning
confidence: 90%
See 1 more Smart Citation
“…It is clear from the spectra of oligomers ( Fig. 7(a) and (b)), the band at about 1621 cm À1 can be assigned to the stretching mode of C@C backbone, which divided into two peaks attributed to the C@C bonds stretching of the oxidized and the reduced species [26,27]. The strong 1387 cm À1 band belongs to C-C inter-ring stretching.…”
Section: Structure Of Oligopyrenementioning
confidence: 90%
“…The strong 1387 cm À1 band belongs to C-C inter-ring stretching. The well-defined scatting bands near 1263 and 1236 cm À1 are originated from the a-C-C-a stretching vibration between the two neighboring pyrene moieties [17,27]. The 1142 cm À1 band is associated with the symmetric in-plane vibration of C-H bonds.…”
Section: Structure Of Oligopyrenementioning
confidence: 97%
“…Up to now, a number of techniques have been developed for microstructuring ICPs, such as laser-induced polymerisation, laser ablation, polymerisation on a prestructured substrate and soft lithography [7][8][9][10]. Microtubules and microspheres of ICPs can be prepared via a template or a template-free route [11][12][13][14][15][16][17][18][19]. Although aligned microstructures based on the features of the template can be produced, the template-guided synthesis technique is expensive and the solid template limits the size of the material.…”
Section: Introductionmentioning
confidence: 99%
“…This approach actually eliminates even need of one p and one n type semiconductor for rectifying heterojunction. Hence a rectifying heterojunction using two p type organic semiconductor or two n type organic semiconductors has been demonstrated [14][15][16]. These junctions are called isotype heterojunction.…”
Section: Introductionmentioning
confidence: 99%