NANOCRYSTALLINE FILMS IN THE Ag-Ni SYSTEM

Nanocrystalline TiO2films were explored for the first time as electrode material for a rechargeable lithium intercalation cell, i.e., Li/LiCF3SO3+ PC/TiO2. Two kinds of nanocrystalline films, TiO2F387 (Degussa) and TiO2colloid-240, were investigated. These films exhibited excellent performance renderings them a promising choice for secondary battery applications. At a current density of 0.01 mA/cm2, two voltage plateaus at 1.78 and 1.89 V were observed for TiO2F387 films during charge and discharge, respectively. The TiO2electrode charge capacity per unit weight rose with decreasing current density. The highest capacity, obtained at a current density of 0.005 mA/cm2and a final discharge voltage of 1.4 V, was 265 mAh/g corresponding to a lithium insertion ratio ofx= 0.8. Nanocrystalline TiO2colloid-240 films showed a similar performance. The cycle life of a TiO2colloid-240 cell at a high current density was found to be excellent; a capacity loss lower than 14% has been observed over 100 charge/discharge cycles.

Download Full-text

Thin ZnO nanocrystalline films for efficient quasi-solid state electrolyte quantum dot sensitized solar cells

Journal of Power Sources ◽

10.1016/j.jpowsour.2012.07.034 ◽

2012 ◽

Vol 219 ◽

pp. 9-15 ◽

Cited By ~ 25

Author(s):

Dimitrios Karageorgopoulos ◽

Elias Stathatos ◽

Evangelos Vitoratos

Keyword(s):

Solar Cells ◽

Solid State ◽

Quantum Dot ◽

Nanocrystalline Films ◽

Solid State Electrolyte ◽

Sensitized Solar Cells

Download Full-text

Surface morphology and mechanical properties changes induced in Ti3InC2 (M3AX2) thin nanocrystalline films by irradiation of 100 keV Ne+ ions

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2021.127775 ◽

2021 ◽

pp. 127775

Author(s):

Snejana Bakardjieva ◽

Giovanni Ceccio ◽

Jiri Vacik ◽

Lucia Calcagno ◽

Antonino Cannavo ◽

...

Keyword(s):

Mechanical Properties ◽

Surface Morphology ◽

Nanocrystalline Films ◽

Morphology And Mechanical Properties

Download Full-text

Applications of Nanoscale Materials in the Fields of Electrochemistry and Photoelectrochemistry

Active and Passive Electronic Components ◽

10.1155/1998/60840 ◽

1998 ◽

Vol 21 (2) ◽

pp. 123-146 ◽

Cited By ~ 1

Author(s):

G. Campet ◽

A. Deshayes ◽

J. C. Frison ◽

N. Treuil ◽

J. Portier

Keyword(s):

Energy Storage ◽

Lithium Batteries ◽

Nanocrystalline Materials ◽

Lithium Ion ◽

Electrical Energy ◽

Rechargeable Batteries ◽

Photoelectrochemical Cells ◽

Nanoscale Materials ◽

Nanocrystalline Films ◽

Electrical Energy Storage

We have illustrated the important role played by the nanoscale materials in three-up-to-date energy topics.1/The solar-to-electrical energy conversion in photoelectrochemical cells: we have shown two favorable situations for which photoelectrochemical cells using porous nanocrystalline films have high efficiencies.2/The electrical energy storage in rechargeable rocking-chair lithium batteries: these systems, which use nanocrystalline materials, might be the next generation of rechargeable batteries showing higher capacity, cyclability, and safety than conventional lithium ion batteries.3/The energy saving with efficient electrochromic windows using nanocrystalline materials.

Download Full-text

Structural and Optical Properties of Luminescent Copper(I) Chloride Thin Films Deposited by Sequentially Pulsed Chemical Vapour Deposition

Coatings ◽

10.3390/coatings8100369 ◽

2018 ◽

Vol 8 (10) ◽

pp. 369 ◽

Cited By ~ 1

Author(s):

Richard Krumpolec ◽

Tomáš Homola ◽

David Cameron ◽

Josef Humlíček ◽

Ondřej Caha ◽

...

Keyword(s):

Atomic Layer Deposition ◽

Chemical Vapour Deposition ◽

Photoelectron Spectroscopy ◽

Vapour Deposition ◽

Chemical Vapour ◽

Atomic Layer ◽

Nanocrystalline Films ◽

Zinc Blende ◽

Layer Deposition

Sequentially pulsed chemical vapour deposition was used to successfully deposit thin nanocrystalline films of copper(I) chloride using an atomic layer deposition system in order to investigate their application to UV optoelectronics. The films were deposited at 125 °C using [Bis(trimethylsilyl)acetylene](hexafluoroacetylacetonato)copper(I) as a Cu precursor and pyridine hydrochloride as a new Cl precursor. The films were analysed by XRD, X-ray photoelectron spectroscopy (XPS), SEM, photoluminescence, and spectroscopic reflectance. Capping layers of aluminium oxide were deposited in situ by ALD (atomic layer deposition) to avoid environmental degradation. The film adopted a polycrystalline zinc blende-structure. The main contaminants were found to be organic materials from the precursor. Photoluminescence showed the characteristic free and bound exciton emissions from CuCl and the characteristic exciton absorption peaks could also be detected by reflectance measurements.

Download Full-text