Abstract
Heteromolecular layers consisting of quaterrylene (QT) and terrylene-3,4,11,12-tetracarboximide (TTCDI-C 12) were prepared on SiO 2 surfaces and the electronic energy level alignment at TTCDIC12/ QT interface was examined. TTCDI-C 12 layers were grown in nearly perpendicular orientation on QT layers by an ultraslow deposition technique, thereby achieving formation of a well-defined TTCDI-C 12/QT interface. Atomic force microscopy (AFM) measurements ensured excellent surface flatness of each layer, surface roughnesses of which were comparable to that of pristine SiO 2. Energy level alignment at the heteromolecular interface was evaluated by using ultraviolet photoelectron spectroscopy (UPS) and optical absorption measurements. No shift in energy level was observed at the heteromolecular interface, indicating that charge transfer does not occur and a dipole moment is not formed at the well-defined TTCDI-C 12/QT interface.
| Original language | English |
|---|---|
| Pages (from-to) | 4888-4892 |
| Number of pages | 5 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 11 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2011 Dec 1 |
| Externally published | Yes |
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Keywords
- Energy level alignment
- Heteromolecular interface
- Layer-by-layer growth
- TTCDI-C
- Ultraslow deposition
- Ultraviolet photoelectron spectroscopy
ASJC Scopus subject areas
- Condensed Matter Physics
- Chemistry(all)
- Materials Science(all)
- Bioengineering
- Biomedical Engineering
Cite this
Molecular alignment and energy-level diagram at heteromolecular interface of quaterrylene and terrylene-3,4,11,12-tetracarboximide. / Hiroshiba, Nobuya; Hill, Jonathan P.; Hayakawa, Ryoma; Chikyow, Toyohiro; Matsuishi, Kiyoto; Ariga, Katsuhiko; Wakayama, Yutaka.
In: Journal of Nanoscience and Nanotechnology, Vol. 11, No. 6, 01.12.2011, p. 4888-4892.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Molecular alignment and energy-level diagram at heteromolecular interface of quaterrylene and terrylene-3,4,11,12-tetracarboximide
AU - Hiroshiba, Nobuya
AU - Hill, Jonathan P.
AU - Hayakawa, Ryoma
AU - Chikyow, Toyohiro
AU - Matsuishi, Kiyoto
AU - Ariga, Katsuhiko
AU - Wakayama, Yutaka
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Heteromolecular layers consisting of quaterrylene (QT) and terrylene-3,4,11,12-tetracarboximide (TTCDI-C 12) were prepared on SiO 2 surfaces and the electronic energy level alignment at TTCDIC12/ QT interface was examined. TTCDI-C 12 layers were grown in nearly perpendicular orientation on QT layers by an ultraslow deposition technique, thereby achieving formation of a well-defined TTCDI-C 12/QT interface. Atomic force microscopy (AFM) measurements ensured excellent surface flatness of each layer, surface roughnesses of which were comparable to that of pristine SiO 2. Energy level alignment at the heteromolecular interface was evaluated by using ultraviolet photoelectron spectroscopy (UPS) and optical absorption measurements. No shift in energy level was observed at the heteromolecular interface, indicating that charge transfer does not occur and a dipole moment is not formed at the well-defined TTCDI-C 12/QT interface.
AB - Heteromolecular layers consisting of quaterrylene (QT) and terrylene-3,4,11,12-tetracarboximide (TTCDI-C 12) were prepared on SiO 2 surfaces and the electronic energy level alignment at TTCDIC12/ QT interface was examined. TTCDI-C 12 layers were grown in nearly perpendicular orientation on QT layers by an ultraslow deposition technique, thereby achieving formation of a well-defined TTCDI-C 12/QT interface. Atomic force microscopy (AFM) measurements ensured excellent surface flatness of each layer, surface roughnesses of which were comparable to that of pristine SiO 2. Energy level alignment at the heteromolecular interface was evaluated by using ultraviolet photoelectron spectroscopy (UPS) and optical absorption measurements. No shift in energy level was observed at the heteromolecular interface, indicating that charge transfer does not occur and a dipole moment is not formed at the well-defined TTCDI-C 12/QT interface.
KW - Energy level alignment
KW - Heteromolecular interface
KW - Layer-by-layer growth
KW - TTCDI-C
KW - Ultraslow deposition
KW - Ultraviolet photoelectron spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=84861120188&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861120188&partnerID=8YFLogxK
U2 - 10.1166/jnn.2011.4749
DO - 10.1166/jnn.2011.4749
M3 - Article
C2 - 21770118
AN - SCOPUS:84861120188
VL - 11
SP - 4888
EP - 4892
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
SN - 1533-4880
IS - 6
ER -