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epitaxy

epitaxy

1 9.9
A crystal layer grows on another crystal and lines up with the one below
  • noun
  • /ˌɛpɪˈtæksi/
  • Specialized
: epitaxia
  • Such islands can be produced by molecular-beam epitaxy and, within the constraints of the underlying lattice geometry, are distributed randomly on the surface in a variety of sizes and shapes.
  • beam epitaxy
  • molecular-beam epitaxy
  • chemical-beam epitaxy

Examples

  • GaAs technology had grown out of early efforts by Esaki and Raphael Tsu to make superlattices and the development of molecular-beam epitaxy.

    Academic text (1993)
  • One ingenious, highly promising route to tightly confined quantum dots uses patterned substrates combined with multilayer epitaxy to grow very small quantum wires and dots.

    Academic text (1994)
  • Analytic and vacuum techniques made possible the development of molecular-beam epitaxy, which may yet play a major technological role.

    Academic text (1993)
  • Transmission electron microscope image of crystalline MgO layers between layers of iron, formed using molecular beam epitaxy by a team at Japan's National Institute of Advanced Industrial Science and Technology in Tsukuba.

    Academic text (2004)
  • Modifications of the basic molecular-beam epitaxy and chemical vapor deposition techniques have spawned new techniques with names such as atomic-layer epitaxy, migration-enhanced epitaxy, and chemical-beam epitaxy.

    Academic text (1993)
  • When a multiple heterostructure with two thin GaAs layers is prepared by epitaxial growth techniques such as molecular-beam epitaxy or metal-organic chemical vapor deposition, a double quantum well forms.

    Academic text (1994)
  • Crystal Solar is trying a similar approach on etching silicon wafers to create pores, then doing epitaxy, depositing a ceramic slurry, and then exfoliating a thin layer; efficiencies are still low, though.

    Blog text (23)
  • Molecular-beam epitaxy is a widely used method for producing high-quality crystalline layers in semiconductor manufacturing.

  • Researchers developed a new epitaxy technique to improve the efficiency of photovoltaic cells.

  • The process of epitaxy allows for precise control over the thickness and orientation of the crystal layers.

Surface Forms

epitaxy singular
epitaxies plural

Morphology

epitaxy = taxis (opaque) = epi + taxy

Formed from specialist combining forms (epi- + -taxy / taxis) used in technical contexts, so learners cannot reliably infer the meaning from the parts.

Etymology

Epitaxy comes from the parts epi- meaning 'upon' and taxis meaning 'order' or 'arrangement', the same root you see in tactic. Think of it like laying a thin sheet 'upon' a patterned floor so the sheet copies the pattern beneath it, which is why epitaxy means a crystal layer grows 'upon' another crystal and keeps the same order.