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Search for "surface passivation" in Full Text gives 35 result(s) in Beilstein Journal of Nanotechnology.
Carbon nano-onions (multi-layer fullerenes): chemistry and applications
Beilstein J. Nanotechnol. 2014, 5, 1980–1998, doi:10.3762/bjnano.5.207
- carboxylate functional groups, together with the defective nature of the CNOs, also led to the observed fluorescence emission in the visible and NIR, which was imposed by spontaneous surface passivation and quantum confinement and allowed for multicolor biological imaging. The specimens were fed with
Silicon and germanium nanocrystals: properties and characterization
Beilstein J. Nanotechnol. 2014, 5, 1787–1794, doi:10.3762/bjnano.5.189
- -covered nanocrystals with the same size. Like the hydrogenated Si NCs, chlorinated Si NCs doped with phosphorus or boron require a high activation energy to transfer an electron or hole, respectively, to undoped Si NCs. The electronic levels of surface dangling bonds are similar for both types of surface
- passivation, although in the chlorinated Si NCs some fall off the narrower gap. Functionalisation with chlorine, nitrogen and fluorine was also found to be an effective way to control the bandgap of nanodiamonds [68]. Nanocrystals functionalized with organic groups have so far only been considered in a
The cell-type specific uptake of polymer-coated or micelle-embedded QDs and SPIOs does not provoke an acute pro-inflammatory response in the liver
Beilstein J. Nanotechnol. 2014, 5, 1432–1440, doi:10.3762/bjnano.5.155
- that the metals within the inorganic core are potentially toxic. Apparently, QDs with a special nano-sized formulation and surface passivation prevent acute toxic effects. Given that only some of the reports found pathological effects in a clinical sense, parameters that are more sensitive such as
Direct nanoscale observations of the coupled dissolution of calcite and dolomite and the precipitation of gypsum
Beilstein J. Nanotechnol. 2014, 5, 1245–1253, doi:10.3762/bjnano.5.138
- mechanism is known as passivation or armoring [3][9][10][11][12][13][14][15][16]. While metal phases tend to precipitate between the calcite grains, gypsum tends to precipitate strongly adhered on the dissolving calcite surface, which is the main mechanism responsible for surface passivation [14][15][16][17
Surface processes during purification of InP quantum dots
Beilstein J. Nanotechnol. 2014, 5, 1220–1225, doi:10.3762/bjnano.5.135
- precursor takes place, which leads to a better surface passivation. The electrophoretic purification technique does not increase luminescence efficiency but yields very pure quantum dots in only a few minutes. Additionally, the formation of In(OH)3 during the low temperature synthesis was explained
In vitro toxicity and bioimaging studies of gold nanorods formulations coated with biofunctional thiol-PEG molecules and Pluronic block copolymers
Beilstein J. Nanotechnol. 2014, 5, 546–553, doi:10.3762/bjnano.5.64
- . Therefore, the advantages of these two block copolymers are combined to provide a better surface passivation on the particles and a better colloidal stability [30][31][32]. PEG-SH and Pluronic encapsulated AuNRs were prepared by retrieving particles after the third round of the washing treatment. Figure 2c
Ellipsometry and XPS comparative studies of thermal and plasma enhanced atomic layer deposited Al2O3-films
Beilstein J. Nanotechnol. 2013, 4, 732–742, doi:10.3762/bjnano.4.83
- been investigated for several applications like surface passivation or encapsulation in organic and inorganic photovoltaic devices [1][2], interfacial buffering for high-k dielectrics [3][4], organic memories [5], and nano-laminates [6] as well as work function modification [7], gas diffusion barrier
- fragile substrates [2][8][15][18]. Recently the Kessels group has reviewed the state of the art of plasma-assisted ALD [18] and surface passivation schemes of Al2O3 prepared by ALD [1]. This group has reported also on the modeling of reaction regimes influencing the conformality of the PE-ALD process [19
Surface passivation and optical characterization of Al2O3/a-SiCx stacks on c-Si substrates
Beilstein J. Nanotechnol. 2013, 4, 726–731, doi:10.3762/bjnano.4.82
- study the surface passivation of aluminum oxide/amorphous silicon carbide (Al2O3/a-SiCx) stacks on both p-type and n-type crystalline silicon (c-Si) substrates as well as the optical characterization of these stacks. Al2O3 films of different thicknesses were deposited by thermal atomic layer deposition
- ; silicon carbide (SiCx); surface passivation; Introduction Surface passivation has become a relevant issue in high efficiency crystalline silicon (c-Si) solar cells. The importance is even increasing as thinner wafers are used to reduce the cost for photovoltaic applications [1]. Aluminum oxide (Al2O3
- coating (ARC) plays a vital role in highly efficient solar cells [16]. We have measured the reflectance over a wide wavelength range, 300–1200 nm, in order to determine the optimum layer thicknesses for the stack to be used as an ARC without compromising the surface passivation quality. Results and
Spontaneous dissociation of Co2(CO)8 and autocatalytic growth of Co on SiO2: A combined experimental and theoretical investigation
Beilstein J. Nanotechnol. 2012, 3, 546–555, doi:10.3762/bjnano.3.63
- . Partial or full removal of the hydroxyl surface passivation layer leads to an increased driving force for dissociation. This will be discussed in more detail in the the next section in which we present results obtained in the framework of DFT calculations concerning the adsorption behavior and stability
Self-assembly at solid surfaces
Beilstein J. Nanotechnol. 2011, 2, 824–825, doi:10.3762/bjnano.2.91
- examination, prevention of spreading of liquids, friction and wear reduction, and surface passivation and protection. Whereas the early study of such monolayers indeed attracted considerable attention over the years, perhaps their greatest impact was yet to come, in new directions of research that could not
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