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  2. 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 ...

  3. 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 ...

  4. 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).

  5. Roentgenium - Wikipedia

    en.wikipedia.org/wiki/Roentgenium

    The team bombarded a target of bismuth-209 with accelerated nuclei of nickel-64 and detected three nuclei of the isotope 272 111: 209 83 Bi + 64 28 Ni → 272 111 + 1 0 n. This reaction had previously been conducted at the Joint Institute for Nuclear Research in Dubna (then in the Soviet Union) in 1986, but no atoms of 272 111 had then been ...

  6. Surface energy - Wikipedia

    en.wikipedia.org/wiki/Surface_energy

    The surface energy of a liquid may be measured by stretching a liquid membrane (which increases the surface area and hence the surface energy). In that case, in order to increase the surface area of a mass of liquid by an amount, δA, a quantity of work, γ δA, is needed (where γ is the surface energy density of the liquid).

  7. 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 ...

  8. Silicene - Wikipedia

    en.wikipedia.org/wiki/Silicene

    The hybridization between Si and Ag results in a metallic surface state, which can gradually decay due to oxygen adsorption. X-ray photoemission spectroscopy confirms the decoupling of Si-Ag bonds after oxygen treatment as well as the relative oxygen resistance of Ag(111) surface, in contrast to 4 × 4 silicene [with respect to Ag(111)]. [32]

  9. Strain engineering - Wikipedia

    en.wikipedia.org/wiki/Strain_engineering

    Strain can be induced in thin films with either epitaxial growth, or more recently, topological growth. Epitaxial strain in thin films generally arises due to lattice mismatch between the film and its substrate and triple junction restructuring at the surface triple junction, which arises either during film growth or due to thermal expansion mismatch. [5]