'Si atom' diaporamas de présentation

E XPLORING THE N ANOLANDSCAPE Scanning Probe Microscopy

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Allotropes of Carbon

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Lecture 2

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Lecture 2

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SEMICONDUCTORS

SEMICONDUCTORS. Properties These are inorganic materials made from elements in the fourth column ( Group IV ) of the periodic table. Semiconductors in Group IV are called elemental semiconductors .

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Conductivity

Conductivity. Charge carriers follow a random path unless an external field is applied. Then, they acquire a drift velocity that is dependent upon their mobility, m n and the strength of the field, x V d = - m n x . The average drift velocity, v av is dependent

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Photoresponse spectrum in differently irradiated and annealed S i

Photoresponse spectrum in differently irradiated and annealed S i. Juozas Vaitkus Vilnius University, Lithuania On behalf of PC spectra group: V.Kalendra, V.Kazukauskas and N.Vainorius, and the lifetime group: E.Gaubas. Outline:.

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Structure of Minerals

Structure of Minerals. All minerals are crystalline The atoms are arranged in a regular pattern A crystal is a regular geometric solid with smooth surfaces called crystal faces The orderly arrangement of ions determines the shape of the crystal. Crystal Structure.

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