Abstract
Since luminescent CdSe quantum dots (QDs) have shown great potential in biological labeling, the surface chemistry behavior of QDs at interfaces is of great research interest. In the present study, CdSe QDs with green luminescence were modified with hydrophobic chains of varying lengths [from C6 to C18]. These modified QDs can be utilized to form stable monolayers at the air/water interface. Surface pressure-area isotherms of modified QDs have been measured and limiting molecular areas have also been extrapolated in order to analyze the size of the QDs. UV absorption spectra of modified QDs at various surface pressures were also determined. Surface chemistry, as well as the topographic properties, of modified QDs in Langmuir and L-B films was discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 123-133 |
| Number of pages | 11 |
| Journal | Journal of Cluster Science |
| Volume | 14 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jun 1 2003 |
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Keywords
- Air/water interface
- CdSe
- ESEM
- Molecular area
- Monolayer
- QDs
- Surface pressure
ASJC Scopus subject areas
- Inorganic Chemistry
Cite this
Surface Chemistry Studies of Quantum Dots (QDs) Modified with Surfactants. / Sui, Guodong; Orbulescu, Jhony; Ji, Xiaojun; Gattás-Asfura, Kerim M.; Leblanc, Roger; Micic, Miodrag.
In: Journal of Cluster Science, Vol. 14, No. 2, 01.06.2003, p. 123-133.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Surface Chemistry Studies of Quantum Dots (QDs) Modified with Surfactants
AU - Sui, Guodong
AU - Orbulescu, Jhony
AU - Ji, Xiaojun
AU - Gattás-Asfura, Kerim M.
AU - Leblanc, Roger
AU - Micic, Miodrag
PY - 2003/6/1
Y1 - 2003/6/1
N2 - Since luminescent CdSe quantum dots (QDs) have shown great potential in biological labeling, the surface chemistry behavior of QDs at interfaces is of great research interest. In the present study, CdSe QDs with green luminescence were modified with hydrophobic chains of varying lengths [from C6 to C18]. These modified QDs can be utilized to form stable monolayers at the air/water interface. Surface pressure-area isotherms of modified QDs have been measured and limiting molecular areas have also been extrapolated in order to analyze the size of the QDs. UV absorption spectra of modified QDs at various surface pressures were also determined. Surface chemistry, as well as the topographic properties, of modified QDs in Langmuir and L-B films was discussed.
AB - Since luminescent CdSe quantum dots (QDs) have shown great potential in biological labeling, the surface chemistry behavior of QDs at interfaces is of great research interest. In the present study, CdSe QDs with green luminescence were modified with hydrophobic chains of varying lengths [from C6 to C18]. These modified QDs can be utilized to form stable monolayers at the air/water interface. Surface pressure-area isotherms of modified QDs have been measured and limiting molecular areas have also been extrapolated in order to analyze the size of the QDs. UV absorption spectra of modified QDs at various surface pressures were also determined. Surface chemistry, as well as the topographic properties, of modified QDs in Langmuir and L-B films was discussed.
KW - Air/water interface
KW - CdSe
KW - ESEM
KW - Molecular area
KW - Monolayer
KW - QDs
KW - Surface pressure
UR - http://www.scopus.com/inward/record.url?scp=0042305089&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0042305089&partnerID=8YFLogxK
U2 - 10.1023/A:1024889504216
DO - 10.1023/A:1024889504216
M3 - Article
AN - SCOPUS:0042305089
VL - 14
SP - 123
EP - 133
JO - Journal of Cluster Science
JF - Journal of Cluster Science
SN - 1040-7278
IS - 2
ER -