Abstract
Flower-like gold microstructures are directly formed from solution on the surface of nanometric molecular assemblies. We show that the size and morphology of these microstructures are controlled by the nanoscale thickness of the assemblies, which consist of ruthenium polypyridyl complexes crosslinked with a palladium salt. Gold electrodeposition on these ultrathin (3–15 nm) molecular assemblies, bound to a conductive substrate, follows an instantaneous nucleation regime that results in multiple small clusters. On thicker assemblies (15–55 nm) a progressive nucleation mode is dominant, which leads to the formation of larger (up to 50 times) and highly branched microstructures. The ability to control the characteristics of these microstructures by nanoscale assemblies is based on the mechanistic insights of the nucleation and growth processes obtained by electrochemical means and scanning electron microscopy (SEM) measurement.
| Original language | English |
|---|---|
| Pages (from-to) | 12104-12110 |
| Number of pages | 7 |
| Journal | ChemistrySelect |
| Volume | 4 |
| Issue number | 41 |
| DOIs | |
| Publication status | Published - Nov 8 2019 |
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Keywords
- Electrodeposition
- Gold microstructures
- Molecular assemblies
- Nucleation modes
- Polypyridyl complexes
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Nanoscale Spatial Separation to Regulate Gold Microstructures Formation. / Balgley, Renata; Rechav, Katya; Lahav, Michal; van der Boom, Milko E.
In: ChemistrySelect, Vol. 4, No. 41, 08.11.2019, p. 12104-12110.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nanoscale Spatial Separation to Regulate Gold Microstructures Formation
AU - Balgley, Renata
AU - Rechav, Katya
AU - Lahav, Michal
AU - van der Boom, Milko E.
PY - 2019/11/8
Y1 - 2019/11/8
N2 - Flower-like gold microstructures are directly formed from solution on the surface of nanometric molecular assemblies. We show that the size and morphology of these microstructures are controlled by the nanoscale thickness of the assemblies, which consist of ruthenium polypyridyl complexes crosslinked with a palladium salt. Gold electrodeposition on these ultrathin (3–15 nm) molecular assemblies, bound to a conductive substrate, follows an instantaneous nucleation regime that results in multiple small clusters. On thicker assemblies (15–55 nm) a progressive nucleation mode is dominant, which leads to the formation of larger (up to 50 times) and highly branched microstructures. The ability to control the characteristics of these microstructures by nanoscale assemblies is based on the mechanistic insights of the nucleation and growth processes obtained by electrochemical means and scanning electron microscopy (SEM) measurement.
AB - Flower-like gold microstructures are directly formed from solution on the surface of nanometric molecular assemblies. We show that the size and morphology of these microstructures are controlled by the nanoscale thickness of the assemblies, which consist of ruthenium polypyridyl complexes crosslinked with a palladium salt. Gold electrodeposition on these ultrathin (3–15 nm) molecular assemblies, bound to a conductive substrate, follows an instantaneous nucleation regime that results in multiple small clusters. On thicker assemblies (15–55 nm) a progressive nucleation mode is dominant, which leads to the formation of larger (up to 50 times) and highly branched microstructures. The ability to control the characteristics of these microstructures by nanoscale assemblies is based on the mechanistic insights of the nucleation and growth processes obtained by electrochemical means and scanning electron microscopy (SEM) measurement.
KW - Electrodeposition
KW - Gold microstructures
KW - Molecular assemblies
KW - Nucleation modes
KW - Polypyridyl complexes
UR - http://www.scopus.com/inward/record.url?scp=85074988555&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074988555&partnerID=8YFLogxK
U2 - 10.1002/slct.201903067
DO - 10.1002/slct.201903067
M3 - Article
AN - SCOPUS:85074988555
VL - 4
SP - 12104
EP - 12110
JO - ChemistrySelect
JF - ChemistrySelect
SN - 2365-6549
IS - 41
ER -