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  2. Surface reconstruction - Wikipedia

    en.wikipedia.org/wiki/Surface_reconstruction

    The Si (111) structure, by comparison, exhibits a much more complex reconstruction. Cleavage along the (111) surface at low temperatures results in another 2×1 reconstruction, differing from the (100) surface by forming long π-bonded chains in the first and second surface layers. However, when heated above 400 °C, this structure converts ...

  3. Heterojunction solar cell - Wikipedia

    en.wikipedia.org/wiki/Heterojunction_solar_cell

    The replacement of amorphous silicon with nanocrystalline silicon/silicon oxide has already been integrated by some manufacturers on n-type, with p-type (hole contact) to follow in the near future. [27] An optimised nanocrystalline hole contact was instrumental in producing the Lin, et al.. (2023) 26.81% power conversion efficiency world record ...

  4. Zener ratio - Wikipedia

    en.wikipedia.org/wiki/Zener_ratio

    The Zener ratio is a dimensionless number that is used to quantify the anisotropy for cubic crystals. It is sometimes referred as anisotropy ratio and is named after Clarence Zener. [1] Conceptually, it quantifies how far a material is from being isotropic (where the value of 1 means an isotropic material). Its mathematical definition is [1] [2]

  5. List of semiconductor materials - Wikipedia

    en.wikipedia.org/wiki/List_of_semiconductor...

    A compound semiconductor is a semiconductor compound composed of chemical elements of at least two different species. These semiconductors form for example in periodic table groups 13–15 (old groups III–V), for example of elements from the Boron group (old group III, boron, aluminium, gallium, indium) and from group 15 (old group V, nitrogen, phosphorus, arsenic, antimony, bismuth).

  6. Slip (materials science) - Wikipedia

    en.wikipedia.org/wiki/Slip_(materials_science)

    There are six slip planes of type {110}, each with two <111> directions (12 systems). There are 24 {123} and 12 {112} planes each with one <111> direction (36 systems, for a total of 48). Although the number of possible slip systems is much higher in bcc crystals than fcc crystals, the ductility is not necessarily higher due to increased ...

  7. Deal–Grove model - Wikipedia

    en.wikipedia.org/wiki/Deal–Grove_model

    The Deal-Grove model also fails for polycrystalline silicon ("poly-silicon"). First, the random orientation of the crystal grains makes it difficult to choose a value for the linear rate constant. Second, oxidant molecules diffuse rapidly along grain boundaries, so that poly-silicon oxidizes more rapidly than single-crystal silicon. [citation ...

  8. Seeing '111' all the time? Here's what the angel number means

    www.aol.com/news/angel-number-111-meaning-why...

    Angel number 111 meaning. If you see 111 or any sequence of 1's, it could be a sign that new opportunities are on the way or that this is the start of a new beginning. It's likely a sign to trust ...

  9. Silicon–oxygen bond - Wikipedia

    en.wikipedia.org/wiki/Silicon–oxygen_bond

    A silicon–oxygen bond (Si−O bond) is a chemical bond between silicon and oxygen atoms that can be found in many inorganic and organic compounds. [1] In a silicon–oxygen bond, electrons are shared unequally between the two atoms , with oxygen taking the larger share due to its greater electronegativity .