Schematic structures of crystalline silicon, amorphous silicon, and amorphous hydrogenated silicon
Solar calculator with amorphous solar cell (upper right corner) and LCDs.
Amorphous silicon (a-Si) is the non-crystalline form of silicon used for solar cells and thin-film transistors in LCDs.
Used as semiconductor material for a-Si solar cells, or thin-film silicon solar cells, it is deposited in thin films onto a variety of flexible substrates, such as glass, metal and plastic. Amorphous silicon cells generally feature low efficiency.
As a second-generation thin-film solar cell technology, amorphous silicon was once expected to become a major contributor in the fast-growing worldwide photovoltaic market, but has since lost its significance due to strong competition from conventional crystalline silicon cells and other thin-film technologies such as CdTe and CIGS.[citation needed] Amorphous silicon is a preferred material for the thin film transistor (TFT) elements of liquid crystal displays (LCDs) and for x-ray imagers.
Amorphous silicon differs from other allotropic variations, such as monocrystalline silicon—a single crystal, and polycrystalline silicon, that consists of small grains, also known as crystallites.
Amorphoussilicon (a-Si) is the non-crystalline form of silicon used for solar cells and thin-film transistors in LCDs. Used as semiconductor material...
important being CdTe, CIGS, and amorphoussilicon (a-Si). Amorphoussilicon is an allotropic variant of silicon, and amorphous means "without shape" to describe...
synonymously with amorphous solid; however, these terms refer specifically to amorphous materials that undergo a glass transition. Examples of amorphous solids include...
distinct from monocrystalline silicon and amorphoussilicon. In single-crystal silicon, also known as monocrystalline silicon, the crystalline framework...
thought to have prepared impure amorphoussilicon in 1811, through the heating of recently isolated potassium metal with silicon tetrafluoride, but they did...
spectrum is much greater. For example, for modules of amorphoussilicon, micromorphic silicon or cadmium telluride, we are talking about annual degradation...
yield amorphoussilicon (a-Si or a-Si:H), protocrystalline silicon or nanocrystalline silicon (nc-Si or nc-Si:H), also called microcrystalline silicon. Amorphous...
which were published in 1986 and 1988. The 1986 publication relates to amorphous materials, while the 1988 publication relates to crystalline. Subsequently...
an active crystalline silicon absorber substrate which is passivated by a thin layer of hydrogenated intrinsic amorphoussilicon (denoted as a-Si:H; the...
non-conducting amorphoussilicon between two metal conductors. When a sufficiently high voltage is applied across the amorphoussilicon it is turned into...
characterized commercially available solid silicon monoxide materials as an inhomogeneous mixture of amorphous SiO2 and amorphous Si with some chemical bonding at...
experiments that Electron Paramagnetic Resonance (EPR) spectra of amorphous hydrogenated silicon (a-Si:H) do not differ significantly from the deuterated counterpart...
Monocrystalline silicon differs from other allotropic forms, such as non-crystalline amorphoussilicon—used in thin-film solar cells—and polycrystalline silicon, which...
Allotropes of silicon are structurally varied forms of silicon. Amorphoussilicon takes the form of a brown powder. Crystalline silicon has a metallic...
1947) and silicon (first used in 1954)—in amorphous, polycrystalline and monocrystalline form. The compounds gallium arsenide (1966) and silicon carbide...
transport in structurally disordered semiconductors such as hydrogenated amorphoussilicon. In the simplest description of a semiconductor, a single parameter...
substantial consumption of silane for depositing (PECVD) hydrogenated amorphoussilicon (a-Si:H) on glass and other substrates like metal and plastic. The...
are crystalline solids, but amorphous and liquid semiconductors are also known. These include hydrogenated amorphoussilicon and mixtures of arsenic, selenium...
detectors. They are classified in two main categories: 1. Indirect FPDs Amorphoussilicon (a-Si) is the most common material of commercial FPDs. Combining a-Si...
to amorphoussilicon (a-Si), in that it has an amorphous phase. Where they differ, however, is that nc-Si has small grains of crystalline silicon within...
Catania that employed thin-layer technology. Sharp contributes the amorphoussilicon multi-junction thin-film technology, Enel Green Power manages the...
transformer is made with a ferromagnetic amorphous metal. The typical material (Metglas) is an alloy of iron with boron, silicon, and phosphorus in the form of...
The first studies were performed on amorphous Si (Treacy and Gibson 1997) and later on hydrogenated amorphoussilicon. Treacy, Gibson (1997). "Diminished...
spectrum is much greater. For example, for modules of amorphoussilicon, micromorphic silicon or cadmium telluride, we are talking about annual degradation...
, Wronski, C. (1985). "Amorphoussilicon solar cells". Topics in Applied Physics: Amorphous Semiconductors: Amorphoussilicon solar cells. Vol. 36. Springer...
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