Semiconductors are physical systems whose electrical conductivity lies between that of conductors and insulators and is strongly tunable by temperature, impurity concentration, and external fields. Their behavior is governed by band structure, featuring a finite band gap between valence and conduction bands that enables controlled carrier generation and recombination. Charge transport arises from electrons and holes, with densities modulated via doping, optical excitation, or electrostatic gating. Semiconductor systems support phenomena such as drift, diffusion, and quantum confinement, and they serve as the foundational medium for devices like diodes, transistors, and optoelectronic components through engineered heterostructures, junctions, and nanostructures.
A new method for combining magnetic elements with semiconductors—which are vital materials for computers and other electronic devices—was unveiled by a research team led by the California NanoSystems Institute at UCLA.
Nanophysics
Jul 22, 2025
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Solar cells and computer chips need silicon layers that are as perfect as possible. Every imperfection in the crystalline structure increases the risk of reduced efficiency or defective switching processes.
Condensed Matter
Jul 22, 2025
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Lasers that are fabricated directly onto silicon photonic chips offer several advantages over external laser sources, such as greater scalability. Furthermore, photonic chips with these "monolithically" integrated lasers ...
Optics & Photonics
Jul 18, 2025
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122
Many displays found in smartphones and televisions rely on thin-film transistors (TFTs) made from indium gallium zinc oxide (IGZO) to control pixels. IGZO offers high transparency due to its large bandgap (the gap existing ...
Optics & Photonics
Jul 9, 2025
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A new wave of innovation is transforming the future of optical technologies, driven by rapid advancements in semiconductor nanolasers. These advances are essential for future applications such as on-chip optical communication ...
Nanophysics
Jun 25, 2025
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A research team has synthesized three-dimensionally shaped molecules containing an internal twist and shown that they possess the properties of organic semiconductors. By introducing methyl groups into a planar molecule containing ...
Nanomaterials
Jun 25, 2025
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As we witness the detrimental effects of climate change, the need for a rapid shift to renewable energy is only becoming more urgent. One of the most efficient forms of renewable energy, solar power, is generated by solar ...
Condensed Matter
Jun 24, 2025
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125
A condition long considered to be unfavorable to electrical conduction in semiconductor materials may actually be beneficial in 2D semiconductors, according to new findings by UC Santa Barbara researchers published in the ...
Nanophysics
Jun 23, 2025
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A team of researchers from Tohoku University, National Institutes for Quantum Science and Technology (QST), and Cambridge University have demonstrated a new way to make a unique material called tin sulfide (SnS), which can ...
Nanophysics
Jun 13, 2025
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Colloidal halide perovskite nanocrystals have emerged as strong candidates for light-emitting diodes and solar applications due to their excellent photoluminescent properties. However, instability and lead toxicity limit ...
Nanophysics
Jun 13, 2025
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