Junctions, as physical systems, are localized regions where two or more distinct materials, phases, or structural domains meet and interact, often exhibiting emergent properties not present in the bulk constituents. They can involve interfaces such as metal–semiconductor (Schottky), p–n semiconductor, grain boundaries, or superconducting weak links, and are characterized by spatially varying fields, charge distributions, or order parameters. Junction behavior is governed by boundary conditions, continuity relations, and interfacial energetics, and is central to transport phenomena, including charge, heat, or mass transfer, as well as to device functionality in electronics, photonics, and materials engineering.
A research team has developed high-performance diamond/ε-Ga2O3 heterojunction pn diodes based on ultrawide bandgap semiconductors, achieving breakdown voltages exceeding 3 kV. This work was published in Nano Letters.
Nanomaterials
Dec 27, 2024
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55
Semiconducting transition metal dichalcogenides (TMDs) are a class of layered materials exhibiting unique optoelectronic properties that could be leveraged to develop transistors, sensors and other nanoelectronics. Despite ...
Researchers led by Prof. Cunlan Guo at Wuhan University have pioneered a new approach to control the electrical properties of two-dimensional (2D) metal-organic frameworks (MOFs), specifically porphyrinic 2D MOF nanosheets, ...
Nanophysics
Nov 7, 2024
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UC Santa Barbara researchers have achieved the first-ever "movie" of electric charges traveling across the interface of two different semiconductor materials. Using scanning ultrafast electron (SUEM) techniques developed ...
Condensed Matter
Oct 11, 2024
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Hot carrier solar cells, a concept introduced several decades ago, have long been seen as a potential breakthrough in solar energy technology. These cells could surpass the Shockley–Queisser efficiency limit, which is a theoretical ...
Condensed Matter
Sep 24, 2024
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98
Scientists from the Department of Physical Chemistry at the Fritz Haber Institute have made an innovative discovery in nanoscale optoelectronics. The study, published in the journal Nature Communications and titled "Atomic-Precision ...
Nanophysics
Aug 15, 2024
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Researchers have developed a new theoretical modeling technique that could potentially be used in the development of switches or amplifiers in molecular electronics. The modeling technique is a collaboration between researchers ...
Nanophysics
Aug 15, 2024
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138
Organic thermoelectric materials hold great promise as flexible energy sources for the Internet of Things and wearable electronics. However, their relatively low dimensionless figure of merit (ZT) compared to traditional ...
Nanomaterials
Jul 29, 2024
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61
Researchers have successfully controlled the quantum mechanical properties of Andreev bound states in bilayer graphene-based Josephson junctions using gate voltage. Their research is published in Physical Review Letters. ...
Superconductivity
Jul 1, 2024
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The junction composed of traditional metals and 2D semiconductors is a key component of semiconductor devices.
Condensed Matter
May 8, 2024
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