Results 71 to 80 of about 28,350 (278)

Obtaining of high-quality InP active layers in geterostructure’s composition for Gunn diodes [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2010
It is shown that for epitaxial InP layers obtained by liquid-phase epitaxy complex dopping of indium melts by optimal concentrations of rare-earth Yb and isovalent element Al promotes useful increase of cleaning effect from background impurities and ...
Vakiv M. M.   +4 more
doaj   +2 more sources

A Review of Black Phosphorus‐Based Materials: From Preparation Strategies to Characterization Techniques

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The structure, properties, preparation methods, and characterization techniques of BP. As a typical 2D layered material, black phosphorus (BP) demonstrates exceptional promise in various fields, particularly in energy storage for alkali metal‐ion batteries. However, its distinctive structure and properties, together with the compositional complexity of
Yunqing Wang   +7 more
wiley   +1 more source

Optimization of the concentration’s distribution of the carriers on thickness of epitaxial layers

open access: yesТехнологія та конструювання в електронній апаратурі, 2007
A piston-type device for liquid-phase epitaxy of AIIIBV semiconductor compounds has been modified. The possibility of controlling the impurity concentration gradient, which creates internal electric fields in the photodetecting and active regions of ...
A. V. Karimov   +4 more
doaj  

Optimization of solar cells for air mass zero operation and study of solar cells at high temperatures, phase 4 [PDF]

open access: yes
The Pd contact to GaAs was studied using backscattering, Auger analysis, and sheet resistance measurements. Several metallurgical phases were present at low temperatures, but PdGa was the dominant phase in samples annealed at 500 C.
Hovel, H. J., Woodall, J. M.
core   +1 more source

Film Fabrication Technologies at NREL [PDF]

open access: yes, 1993
The National Renewable Energy Laboratory (NREL) has extensive capabilities for fabricating a variety of high-technology films. Much of the in-house work in NREL's large photovoltaics (PV) program involves the fabrication of multiple thin-film ...
Mcconnell, Robert D.
core   +1 more source

The Dimensional Revolution of Phosphorus: From Allotropicity to Battery System Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Phosphorus‐based materials are promising high‐capacity anodes classified by dimension (0D–3D) to systematically explore their properties and composite strategies. When combined with materials such as carbon to form heterostructures, the electrical conductivity and stability are effectively enhanced.
Shuhan Zhang   +8 more
wiley   +1 more source

Study of process technology for GaAlAs/GaAs heteroface solar cells [PDF]

open access: yes
Two processes were considered: the infinite melt process and the finite melt process. The only technique that is developed to the point that 10,000 cells could be produced in one year is the infinite melt liquid phase epitaxy process. The lowest cost per
Almgren, D. W.   +3 more
core   +1 more source

2D materials and van der Waals heterostructures

open access: yes, 2016
The physics of two-dimensional (2D) materials and heterostructures based on such crystals has been developing extremely fast. With new 2D materials, truly 2D physics has started to appear (e.g.
Carvalho, A.   +3 more
core   +1 more source

Synthesis of Core–Shell Te@Se Quantum Dots and Their Broadband Photodetector Performance in Low Concentration Electrolytes

open access: yesLaser &Photonics Reviews, EarlyView.
Te@Se core–shell heterojunction quantum dots (QDs) are synthesized by a two‐step strategy via combining liquid‐phase exfoliation and epitaxial growth. As active materials in photoelectrochemical photodetectors, Te@Se QDs exhibit excellent photo‐response performance in low‐concentration electrolytes and deionized water.
Yiming Zhao   +8 more
wiley   +1 more source

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