Abstract
The resonance Raman and infrared spectra of sulfuric-acid-treated poly(p-phenylenevinylene) (PPV) have been observed and analyzed on the basis of the resonance Raman spectra of the radical-cation and dication species of the model compounds CH3(C6H4CH=CH)nC6H 4CH3 (PVn, n = 1-3), which correspond, respectively, to positive polarons and bipolarons in PPV. Sulfuric-acid-treated PPV is considered to contain a considerable amount of positive polarons having a more or less uniform length and a relatively small amount of positive bipolarons. Of the two electronic absorption bands at 2.25 and 1.00 eV of sulfuric-acid-treated PPV, the former absorption band is due to the positive polarons, whereas the latter has overlapping components arising from the positive polarons and bipolarons. It is suggested that the high electrical conductivity of sulfuric-acid-treated PPV may be due to formation of a polaron lattice, a regular array of polarons.
| Original language | English |
|---|---|
| Pages (from-to) | 4635-4640 |
| Number of pages | 6 |
| Journal | Journal of Physical Chemistry |
| Volume | 98 |
| Issue number | 17 |
| Publication status | Published - 1994 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
Resonance Raman and ultraviolet to infrared absorption studies of positive polarons and bipolarons in sulfuric-acid-treated poly(p-phenylenevinylene). / Sakamoto, Akira; Furukawa, Yukio; Tasumi, Mitsuo.
In: Journal of Physical Chemistry, Vol. 98, No. 17, 1994, p. 4635-4640.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Resonance Raman and ultraviolet to infrared absorption studies of positive polarons and bipolarons in sulfuric-acid-treated poly(p-phenylenevinylene)
AU - Sakamoto, Akira
AU - Furukawa, Yukio
AU - Tasumi, Mitsuo
PY - 1994
Y1 - 1994
N2 - The resonance Raman and infrared spectra of sulfuric-acid-treated poly(p-phenylenevinylene) (PPV) have been observed and analyzed on the basis of the resonance Raman spectra of the radical-cation and dication species of the model compounds CH3(C6H4CH=CH)nC6H 4CH3 (PVn, n = 1-3), which correspond, respectively, to positive polarons and bipolarons in PPV. Sulfuric-acid-treated PPV is considered to contain a considerable amount of positive polarons having a more or less uniform length and a relatively small amount of positive bipolarons. Of the two electronic absorption bands at 2.25 and 1.00 eV of sulfuric-acid-treated PPV, the former absorption band is due to the positive polarons, whereas the latter has overlapping components arising from the positive polarons and bipolarons. It is suggested that the high electrical conductivity of sulfuric-acid-treated PPV may be due to formation of a polaron lattice, a regular array of polarons.
AB - The resonance Raman and infrared spectra of sulfuric-acid-treated poly(p-phenylenevinylene) (PPV) have been observed and analyzed on the basis of the resonance Raman spectra of the radical-cation and dication species of the model compounds CH3(C6H4CH=CH)nC6H 4CH3 (PVn, n = 1-3), which correspond, respectively, to positive polarons and bipolarons in PPV. Sulfuric-acid-treated PPV is considered to contain a considerable amount of positive polarons having a more or less uniform length and a relatively small amount of positive bipolarons. Of the two electronic absorption bands at 2.25 and 1.00 eV of sulfuric-acid-treated PPV, the former absorption band is due to the positive polarons, whereas the latter has overlapping components arising from the positive polarons and bipolarons. It is suggested that the high electrical conductivity of sulfuric-acid-treated PPV may be due to formation of a polaron lattice, a regular array of polarons.
UR - http://www.scopus.com/inward/record.url?scp=0000190604&partnerID=8YFLogxK
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M3 - Article
AN - SCOPUS:0000190604
VL - 98
SP - 4635
EP - 4640
JO - Journal of Physical Chemistry
JF - Journal of Physical Chemistry
SN - 0022-3654
IS - 17
ER -