'Semiconductors' diaporamas de présentation

Electrification

Electrification. History . static electricity was recognized before the time of Christ William Gilbert was among the first to experiment extensively with electrification. History . amber and glass rods resinous: acted like amber vitreous: acted like glass. History .

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SEMICONDUCTORS

SEMICONDUCTORS. Optoelectronics. SEMICONDUCTORS. Light is a term used to identify electromagnetic radiation which is visible to the human eye. The light spectrum ranges from 300GHz to 300,000,000GHz and falls between RF and X-rays.

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ELECTRONICS

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SEMICONDUCTORS

SEMICONDUCTORS. Transistor Amplifiers. 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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My research: properties of GaMnAs, a magnetic semiconductor

My research: properties of GaMnAs, a magnetic semiconductor. Elisa De Ranieri University of Cambridge. 2 nd VC, 07 Mar 2007. Semiconductors. Semiconductors conduct current only under certain conditions. Conduction can be related to the energy of the electrons in the system.

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FUTURE TRENDS IN SEMICONDUCTOR TECHNOLOGIES

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Energy Band View of Semiconductors

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Metals

Metals. Nonmetals. Metalloids. dull brittle not malleable not ductile poor conductors of thermal and electric energy some have reactivity. shiny malleable ductile good conductors of thermal and electric energy have reactivity.

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Jacob Jarosinski Review 2009

Jacob Jarosinski Review 2009. Welcome to nqa. Performance 2008-2009. Commercial / Financial: Remained No 1 CB in Israel Leader in the market with all products, in all businesses sectors Results 2009. Key Successes. No significant loss of customers Maintaining profitability

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Continuous Time Random Walk Model

Continuous Time Random Walk Model. Primary Sources: Berkowitz, B, G. Kosakowski, G. Margolin, and H. Scher , Application of continuuous time random walk theory to tracer test measurents in fractured and heterogeneous porous media , Ground Water 39 , 593 - 604 , 2001 .

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Saptarshi Das, PhD

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Exam Study Practice

Exam Study Practice. Do all the reading assignments. Be able to solve all the homework problems without your notes. Re-do the derivations we did in class on your own. Equations given: See Formula Posted. Exam Study Questions for Crystals. What is a crystal? What is a lattice?

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STM

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How many types of crystal structures exist?

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Ohm's Law

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Graphene at High Magnetic Fields I

E. k y. k x. Graphene at High Magnetic Fields I. PI: Philip Kim, Department of Physics, Columbia University Supported by NSF (No. DMR-03-52738 and No. CHE-0117752), NYSTAR DOE (No. DE-AIO2-04ER46133 and No. DE-FG02-05ER46215), and Keck Foundation

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Hydrogen in Crystalline Semiconductors Michael Stavola, Lehigh University, DMR 0802278

Hydrogen in Crystalline Semiconductors Michael Stavola, Lehigh University, DMR 0802278.

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Education :

Magnetic Moments in Amorphous Semiconductors: quantum critical scaling Frances Hellman, University of California at Berkeley DMR-0 505524.

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P.R.I.M.E. project: S emiconductor nanoplasmonics

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