Abstract
Chemical action between cyclodextrins (CDs) and TOPO-(CdSe)ZnS quantum dots (QDs) generates a water-soluble solution of CD-QDs. Hydrophobic TOPO molecules on surface of the QDs are compatible to thread through the pockets of CDs and make the hydroxyl group on end of CDs to approach the ZnS surface, and then cause the interaction between ZnS and the hydroxyls. In this paper, Photoluminescence of the γ-CD-QD solution appeared about 15 nm of red movement compared with that of the QDs in hexane; 58% replacement of the crystal coordinate bond of Zn-S with that of Zn-O in the ZnS shell was demonstrated by using first-principles density functional theory and the red shift of the photoluminescence of CD-QDs; and -0.11eV of the energy gain of the exchange model was calculated by using an effective mass (EM) model. CD-QDs will provide water-soluble QDs with conjugational group for biology and molecule-device applications.
| Original language | English |
|---|---|
| Title of host publication | Materials Research Society Symposium - Proceedings |
| Editors | J. Aizenberg, W.J. Landis, C. Orme, R. Wang |
| Pages | 9-13 |
| Number of pages | 5 |
| Volume | 823 |
| Publication status | Published - 2004 |
| Event | Biological and Bioinspired Materials and Devices - San Francisco, CA, United States Duration: Apr 13 2004 → Apr 16 2004 |
Other
| Other | Biological and Bioinspired Materials and Devices |
|---|---|
| Country | United States |
| City | San Francisco, CA |
| Period | 4/13/04 → 4/16/04 |
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Keywords
- Cyclodextrin-quantum dots
- Cyclodextrins
- Quantum dots
- Water-soluble
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
Cite this
Cyclodextrins stabilize TOPO-(CdSe)ZnS quantum dots in water. / Feng, Jun; Kim, Yong Hyun; Zhang, S. B.; Ding, Shi You; Tucker, Melvin P.; Rumbles, Gary; Himmel, Michael E.
Materials Research Society Symposium - Proceedings. ed. / J. Aizenberg; W.J. Landis; C. Orme; R. Wang. Vol. 823 2004. p. 9-13.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Cyclodextrins stabilize TOPO-(CdSe)ZnS quantum dots in water
AU - Feng, Jun
AU - Kim, Yong Hyun
AU - Zhang, S. B.
AU - Ding, Shi You
AU - Tucker, Melvin P.
AU - Rumbles, Gary
AU - Himmel, Michael E.
PY - 2004
Y1 - 2004
N2 - Chemical action between cyclodextrins (CDs) and TOPO-(CdSe)ZnS quantum dots (QDs) generates a water-soluble solution of CD-QDs. Hydrophobic TOPO molecules on surface of the QDs are compatible to thread through the pockets of CDs and make the hydroxyl group on end of CDs to approach the ZnS surface, and then cause the interaction between ZnS and the hydroxyls. In this paper, Photoluminescence of the γ-CD-QD solution appeared about 15 nm of red movement compared with that of the QDs in hexane; 58% replacement of the crystal coordinate bond of Zn-S with that of Zn-O in the ZnS shell was demonstrated by using first-principles density functional theory and the red shift of the photoluminescence of CD-QDs; and -0.11eV of the energy gain of the exchange model was calculated by using an effective mass (EM) model. CD-QDs will provide water-soluble QDs with conjugational group for biology and molecule-device applications.
AB - Chemical action between cyclodextrins (CDs) and TOPO-(CdSe)ZnS quantum dots (QDs) generates a water-soluble solution of CD-QDs. Hydrophobic TOPO molecules on surface of the QDs are compatible to thread through the pockets of CDs and make the hydroxyl group on end of CDs to approach the ZnS surface, and then cause the interaction between ZnS and the hydroxyls. In this paper, Photoluminescence of the γ-CD-QD solution appeared about 15 nm of red movement compared with that of the QDs in hexane; 58% replacement of the crystal coordinate bond of Zn-S with that of Zn-O in the ZnS shell was demonstrated by using first-principles density functional theory and the red shift of the photoluminescence of CD-QDs; and -0.11eV of the energy gain of the exchange model was calculated by using an effective mass (EM) model. CD-QDs will provide water-soluble QDs with conjugational group for biology and molecule-device applications.
KW - Cyclodextrin-quantum dots
KW - Cyclodextrins
KW - Quantum dots
KW - Water-soluble
UR - http://www.scopus.com/inward/record.url?scp=5544269334&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=5544269334&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:5544269334
VL - 823
SP - 9
EP - 13
BT - Materials Research Society Symposium - Proceedings
A2 - Aizenberg, J.
A2 - Landis, W.J.
A2 - Orme, C.
A2 - Wang, R.
ER -