Abstract
PbS crystals of cubic, octahedral, and dendritic shapes are synthesized in an aqueous solution that contains supramolecular complexes of β-cyclodextrin (CD) and hexadecyltrimethylammonium bromide (CTAB). The morphology of the PbS crystals depends on the concentration of CD or CTAB in the reaction solution; for example, the branched dendritic structures evolve with an appropriate molar ratio of CD/CTAB supramolecular complexes and reaction time. Regardless of the CD/CTAB molar ratios, octahedral PbS crystals are observed at all compositions of CD/CTAB for the reaction times of 1–5 h, while self-assembled branched/dendritic structures are obtained only for CD/CTAB molar ratios of 0.5, 1, and 2 after a prolonged reaction, e.g., for 24–48 h. Systematic investigation reveals that both reaction time and CD/CTAB molar ratio are responsible for self-assembled branched/dendritic structures of octahedral crystals.
| Original language | English |
|---|---|
| Journal | Journal of Nanoparticle Research |
| Volume | 17 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2015 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Bioengineering
- Chemistry(all)
- Atomic and Molecular Physics, and Optics
- Modelling and Simulation
- Materials Science(all)
- Condensed Matter Physics
Cite this
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Surface energy-driven growth of crystalline PbS octahedra and dendrites in the presence of cyclodextrin–surfactant supramolecular complexes. / Kumar, Pradip; Kim, Whi Dong; Lee, Seokwon; Lee, Dennis T.; Lee, Kangtaek; Lee, Doh C.
In: Journal of Nanoparticle Research, Vol. 17, No. 2, 01.01.2015.Research output: Contribution to journal › Article
TY - JOUR
T1 - Surface energy-driven growth of crystalline PbS octahedra and dendrites in the presence of cyclodextrin–surfactant supramolecular complexes
AU - Kumar, Pradip
AU - Kim, Whi Dong
AU - Lee, Seokwon
AU - Lee, Dennis T.
AU - Lee, Kangtaek
AU - Lee, Doh C.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - PbS crystals of cubic, octahedral, and dendritic shapes are synthesized in an aqueous solution that contains supramolecular complexes of β-cyclodextrin (CD) and hexadecyltrimethylammonium bromide (CTAB). The morphology of the PbS crystals depends on the concentration of CD or CTAB in the reaction solution; for example, the branched dendritic structures evolve with an appropriate molar ratio of CD/CTAB supramolecular complexes and reaction time. Regardless of the CD/CTAB molar ratios, octahedral PbS crystals are observed at all compositions of CD/CTAB for the reaction times of 1–5 h, while self-assembled branched/dendritic structures are obtained only for CD/CTAB molar ratios of 0.5, 1, and 2 after a prolonged reaction, e.g., for 24–48 h. Systematic investigation reveals that both reaction time and CD/CTAB molar ratio are responsible for self-assembled branched/dendritic structures of octahedral crystals.
AB - PbS crystals of cubic, octahedral, and dendritic shapes are synthesized in an aqueous solution that contains supramolecular complexes of β-cyclodextrin (CD) and hexadecyltrimethylammonium bromide (CTAB). The morphology of the PbS crystals depends on the concentration of CD or CTAB in the reaction solution; for example, the branched dendritic structures evolve with an appropriate molar ratio of CD/CTAB supramolecular complexes and reaction time. Regardless of the CD/CTAB molar ratios, octahedral PbS crystals are observed at all compositions of CD/CTAB for the reaction times of 1–5 h, while self-assembled branched/dendritic structures are obtained only for CD/CTAB molar ratios of 0.5, 1, and 2 after a prolonged reaction, e.g., for 24–48 h. Systematic investigation reveals that both reaction time and CD/CTAB molar ratio are responsible for self-assembled branched/dendritic structures of octahedral crystals.
UR - http://www.scopus.com/inward/record.url?scp=84923668700&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84923668700&partnerID=8YFLogxK
U2 - 10.1007/s11051-015-2919-3
DO - 10.1007/s11051-015-2919-3
M3 - Article
AN - SCOPUS:84923668700
VL - 17
JO - Journal of Nanoparticle Research
JF - Journal of Nanoparticle Research
SN - 1388-0764
IS - 2
ER -