Abstract
This study deals with a hybrid system consisting in quaterthiophene derivative encapsulated inside single-walled and multiwalled carbon nanotubes. Investigations of the encapsulation step are performed by transmission electron microscopy. Raman spectroscopy data point out different behaviors depending on the laser excitation energy with respect to the optical absorption of quaterthiophene. At low excitation energy (far from the oligomer resonance window) there is no significant modification of the Raman spectra before and after encapsulation. By contrast, at high excitation energy (close to the oligomer resonance window), Raman spectra exhibit a G-band shift together with an important RBM intensity loss, suggesting a significant charge transfer between the inserted molecule and the host nanotubes. Those results suggest a photo induced process leading to a significant charge transfer.
| Original language | English |
|---|---|
| Pages (from-to) | 2560-2563 |
| Number of pages | 4 |
| Journal | Physica Status Solidi (B) Basic Research |
| Volume | 248 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 2011 |
| Externally published | Yes |
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Keywords
- Carbon nanotubes
- Encapsulation
- Quaterthiophene
- Raman
ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Charge transfer in conjugated oligomers encapsulated into carbon nanotubes. / Almadori, Y.; Alvarez, L.; Arenal, R.; Babaa, R.; Michel, T.; Le Parc, R.; Bantignies, J. L.; Jouselme, B.; Palacin, S.; Hermet, P.; Sauvajol, J. L.
In: Physica Status Solidi (B) Basic Research, Vol. 248, No. 11, 11.2011, p. 2560-2563.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Charge transfer in conjugated oligomers encapsulated into carbon nanotubes
AU - Almadori, Y.
AU - Alvarez, L.
AU - Arenal, R.
AU - Babaa, R.
AU - Michel, T.
AU - Le Parc, R.
AU - Bantignies, J. L.
AU - Jouselme, B.
AU - Palacin, S.
AU - Hermet, P.
AU - Sauvajol, J. L.
PY - 2011/11
Y1 - 2011/11
N2 - This study deals with a hybrid system consisting in quaterthiophene derivative encapsulated inside single-walled and multiwalled carbon nanotubes. Investigations of the encapsulation step are performed by transmission electron microscopy. Raman spectroscopy data point out different behaviors depending on the laser excitation energy with respect to the optical absorption of quaterthiophene. At low excitation energy (far from the oligomer resonance window) there is no significant modification of the Raman spectra before and after encapsulation. By contrast, at high excitation energy (close to the oligomer resonance window), Raman spectra exhibit a G-band shift together with an important RBM intensity loss, suggesting a significant charge transfer between the inserted molecule and the host nanotubes. Those results suggest a photo induced process leading to a significant charge transfer.
AB - This study deals with a hybrid system consisting in quaterthiophene derivative encapsulated inside single-walled and multiwalled carbon nanotubes. Investigations of the encapsulation step are performed by transmission electron microscopy. Raman spectroscopy data point out different behaviors depending on the laser excitation energy with respect to the optical absorption of quaterthiophene. At low excitation energy (far from the oligomer resonance window) there is no significant modification of the Raman spectra before and after encapsulation. By contrast, at high excitation energy (close to the oligomer resonance window), Raman spectra exhibit a G-band shift together with an important RBM intensity loss, suggesting a significant charge transfer between the inserted molecule and the host nanotubes. Those results suggest a photo induced process leading to a significant charge transfer.
KW - Carbon nanotubes
KW - Encapsulation
KW - Quaterthiophene
KW - Raman
UR - http://www.scopus.com/inward/record.url?scp=84868638403&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84868638403&partnerID=8YFLogxK
U2 - 10.1002/pssb.201100094
DO - 10.1002/pssb.201100094
M3 - Article
VL - 248
SP - 2560
EP - 2563
JO - Physica Status Solidi (B): Basic Research
JF - Physica Status Solidi (B): Basic Research
SN - 0370-1972
IS - 11
ER -