Results 101 to 110 of about 49,137 (305)

Theoretical modelling of dopants in diamond

open access: yes, 2006
One of the hurdles to the use of diamond as an electronic material is the lack of shallow dopants. In this paper, the theoretical modelling of dopants in diamond is reviewed, including some of the more promising suggestions for shallow donors.
Mainwood, A
core   +1 more source

Diffusion of n-type dopants in germanium [PDF]

open access: yes, 2014
Germanium is being actively considered by the semiconductor community as a mainstream material for nanoelectronic applications. Germanium has advantageous materials properties; however, its dopant-defect interactions are less understood as compared to ...
Bracht, H., Chroneos, A.
core   +1 more source

Thermoresponsive Liquid Crystalline Polymer Coatings Programmed by Field‐Induced Topological Defects for Tunable Optical and Topographical Responses

open access: yesAdvanced Functional Materials, EarlyView.
Resonant standing waves generate large‐area lattices of liquid‐crystal topological defects that are permanently encoded into polymer coatings by photopolymerization. The preserved director architecture produces thermally reconfigurable surface topographies while maintaining programmable optical functionality, demonstrating a scalable strategy for ...
Jacques A. Peixoto   +6 more
wiley   +1 more source

Computational Screening of Useful Hole Electron Dopants in SnO2

open access: yes, 2017
Doped tin dioxide (SnO2) is an important semiconductor that is already used in diverse applications. However, to determine the entire potential of this material in more advanced applications of optoelectronics, further improvements in electrical ...
Flores-Livas, Jose A.   +5 more
core   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow   +6 more
wiley   +1 more source

A First-Principles Examination of Dopants in HfO2

open access: yes, 2014
A systematic first-principles study using density functional theory was performed on dopants in HfO2, a material with great importance as a high-k dielectric. Sixteen dopants were tested, most of which came from the fourth period of the periodic table (K-
Cunningham, Daniel
core   +1 more source

Estudio del mecanismo de compensación de BaTiO3 dopado con La2O3

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2004
In this work, the incorporation of several concentrations of the La3+ ion into the BaTiO3 lattice was studied. It was verified that low La3+ concentrations inhibits the grain growth and produces a highly densified material.
Castro, M. S.   +2 more
doaj  

The bipolar doping of ZnS via native defects and external dopants

open access: yes, 2009
By employing first-principle total-energy calculations, a systematic study of the dopability of ZnS to be both n- and p-types compared with that of ZnO is carried out. We find that all the attempted acceptor dopants, group V substituting on the S lattice
Li JB   +4 more
core  

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

The impact of alkali oxides Na2O and Rb2O on the phase composition and hydration of C3A

open access: yesActa Polytechnica
Portland cement clinker contains C3A as one of its key phases. During firing, it forms a melt that is essential for the formation of C3S and C2S. Commonly, two polymorphs of C3A are present: cubic and orthorhombic, and their presence influences the ...
Simona Ravaszová   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy