Multijunction solar cells can be developed using III-V compounds, which have a high photovoltaic efficiency and have already been shown to be more efficient than traditional solar cells. In designs where sub cells with high material quality and high internal quantum efficiency can be used, III-V compound multijunction solar cells can achieve ultrahigh efficiency performance. However, using lattice-matched compound semiconductor materials, it is impossible to achieve the ideal multijunction cell band gap classification. As a result, current compound semiconductor solar cell design approaches...

Les cellules solaires à multijonctions peuvent être développées à l'aide de composés III-V, qui présentent un rendement photovoltaïque élevé et se sont déjà révélés plus efficaces que les cellules solaires traditionnelles. Dans les conceptions où des sous-cellules avec des matériaux de haute qualité et un rendement quantique interne élevé peuvent être utilisées, les cellules solaires à multijonctions à base de composés III-V peuvent atteindre des performances de rendement ultra-élevées. Cependant, en utilisant des matériaux semi-conducteurs composés à réseau...

Mehrfachsolarzellen können unter Verwendung von III-V-Verbindungen entwickelt werden, die einen hohen photovoltaischen Wirkungsgrad haben und sich bereits als effizienter als herkömmliche Solarzellen erwiesen haben. In Konstruktionen, in denen Unterzellen mit hoher Materialqualität und hohem internen Quantenwirkungsgrad verwendet werden können, können III-V-Verbindungssolarzellen mit Mehrfachübergang einen extrem hohen Wirkungsgrad erzielen. Bei der Verwendung von gitterangepassten Verbindungshalbleitermaterialien ist es jedoch unmöglich, die ideale Bandlückenklassifizierung der...

Materials science has grown dramatically in recent decades. Materials, and results of basic and applied research, make life and civilization possible. New materials, from ceramics to semiconductors to composites, must be created, manufactured, and explained. Spectroscopy, microscopy, and other state-of-the-art technologies are now widely used. Modem materials have various tech uses. Films are an extensively used material. Superconducting metal oxides and organic superconductors can be coupled with tum films.Ceramics may also be used in films. Catalysts vary in form and substance. Catalysts...

The book Fermi Surfaces and Metals explores the role of Fermi surfaces in the electronic properties of metals and conductive materials. Fermi surfaces represent the boundary between occupied and unoccupied electron states at absolute zero temperature, and their shape and structure are crucial for understanding electron behavior under external forces. They determine material properties like electrical conductivity, heat capacity, and magnetoresistance. The book covers theoretical underpinnings of Fermi surfaces, including free electron and tight-binding models, band theory, and nearly free...