Purpose-Built Anisotropic Metal Oxide Nanomaterials

2000 ◽  
Vol 635 ◽  
Author(s):  
Lionel Vayssieres ◽  
Jinghua Guo ◽  
Joseph Nordgren
Keyword(s):  
Aqueous Solution ◽  
Metal Oxide ◽  
Electronic Properties ◽  
Anisotropic Nanoparticles ◽  
Ferric Oxyhydroxide ◽  
Optical And Electronic Properties ◽  
Metal Oxide Nanomaterials ◽  
Self Assembled ◽  
Anisotropic Metal

ABSTRACTLarge arrays of perpendicularly oriented anisotropic nanoparticles of ferric oxyhydroxide (Akaganeite, β-FeOOH) and oxide (Hematite, α-Fe2O3) of typically 3-5 nm in diameter, self-assembled as bundles of about 50 nm in diameter and of up to 1 μm in length have been successfully grown onto polycrystalline substrates without template and/or surfactant by heteronucleation from an aqueous solution of ferric salts and their optical and electronic properties investigated.

Self-Assembled Gold Nanoparticle Thin Films with Nonmetallic Optical and Electronic Properties

Langmuir ◽  
1998 ◽  
Vol 14 (19) ◽  
pp. 5425-5429 ◽  
Author(s):  
Mathias Brust ◽  
Donald Bethell ◽  
Christopher J. Kiely ◽  
David J. Schiffrin
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Gold Nanoparticle ◽  
Optical And Electronic Properties ◽  
Self Assembled

Structural, optical, and electronic properties of metal oxide nanostructures

2019 ◽  
pp. 59-102 ◽  
Author(s):  
Daniela Nunes ◽  
Ana Pimentel ◽  
Lidia Santos ◽  
Pedro Barquinha ◽  
Luis Pereira ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Electronic Properties ◽  
Oxide Nanostructures ◽  
Optical And Electronic Properties ◽  
Metal Oxide Nanostructures

Alkyl Phosphate Monolayers, Self-Assembled from Aqueous Solution onto Metal Oxide Surfaces

Langmuir ◽  
2001 ◽  
Vol 17 (13) ◽  
pp. 4014-4020 ◽  
Author(s):  
R. Hofer ◽  
M. Textor ◽  
N. D. Spencer
Keyword(s):  
Aqueous Solution ◽  
Metal Oxide ◽  
Oxide Surfaces ◽  
Metal Oxide Surfaces ◽  
Alkyl Phosphate ◽  
Self Assembled

scholarly journals Оптические и электронные свойства пассивированных поверхностей InP(001)

2021 ◽  
Vol 55 (8) ◽  
pp. 644
Author(s):  
П.А. Дементьев ◽  
Е.В. Дементьева ◽  
Т.В. Львова ◽  
В.Л. Берковиц ◽  
М.В. Лебедев
Keyword(s):  
Aqueous Solution ◽  
Electronic Properties ◽  
Surface Region ◽  
Alcoholic Solution ◽  
Surface Band ◽  
Band Bending ◽  
Near Surface ◽  
Ammonium Sulfide ◽  
Optical And Electronic Properties ◽  
Chemical Passivation

The effect of chemical passivation in solutions of ammonium sulfide (NH4)2S on the optical and electronic properties of the n-InP (001) surface has been studied. It has been shown that treatment in a 4% aqueous solution of (NH4)2S leads to a decrease of surface band bending and localized charges in near-surface region in the 2 times. Processing in a 4% alcoholic solution of (NH4)2S leads to a decrease in these parameters in 3 times, and moreover, the barrier photovoltage and also reduces in three times.

1,1’-Biaceanthrylene and 2,2'-Biaceanthrylene: Models for Linking Larger Polycyclic Aromatic Hydrocarbons via Five-Membered Rings

2019 ◽  
Author(s):  
Yachu Du ◽  
Kyle Plunkett
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Electronic Properties ◽  
Aromatic Hydrocarbons ◽  
Model Systems ◽  
Redox Potentials ◽  
Dimer Model ◽  
Optical And Electronic Properties ◽  
Polycyclic Aromatic

We show that polycyclic aromatic hydrocarbon (PAH) chromophores that are linked between two five-membered rings can access planarized structures with reduced optical gaps and redox potentials. Two aceanthrylene chromophores were connected into dimer model systems with the chromophores either projected outward (2,2’-biaceanthrylene) or inward (1,1’-biaceanthrylene) and the optical and electronic properties were compared. Only the planar 2,2’-biaceanthrylene system showed significant reductions of the optical gaps (1 eV) and redox potentials in relation to the aceanthrylene monomer.<br>

1,1’-Biaceanthrylene and 2,2'-Biaceanthrylene: Models for Linking Larger Polycyclic Aromatic Hydrocarbons via Five-Membered Rings

2019 ◽  
Author(s):  
Yachu Du ◽  
Kyle Plunkett
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Electronic Properties ◽  
Aromatic Hydrocarbons ◽  
Model Systems ◽  
Redox Potentials ◽  
Dimer Model ◽  
Optical And Electronic Properties ◽  
Polycyclic Aromatic

We show that polycyclic aromatic hydrocarbon (PAH) chromophores that are linked between two five-membered rings can access planarized structures with reduced optical gaps and redox potentials. Two aceanthrylene chromophores were connected into dimer model systems with the chromophores either projected outward (2,2’-biaceanthrylene) or inward (1,1’-biaceanthrylene) and the optical and electronic properties were compared. Only the planar 2,2’-biaceanthrylene system showed significant reductions of the optical gaps (1 eV) and redox potentials in relation to the aceanthrylene monomer.<br>

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