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Description

In electronics, a diode is a two-terminal electronic component that conducts electric current in only one direction. The term usually refers to a semiconductor diode, the most common type today. This is a crystalline piece of semiconductor material connected to two electrical terminals. A p–n junction is formed by joining p-type and n-type semiconductors together in very close contact. The term junction refers to the boundary interface where the two regions of the semiconductor meet. If they were constructed of two separate pieces this would introduce a grain boundary, so p–n junctions are created in a single crystal of semiconductor by doping.

Learn more about quantum dots from the many resources on this site, listed below. More information on PN Diode can be found here.

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  1. Drift-Diffusion Modeling and Numerical Implementation Details

    01 Jun 2010 | Contributor(s):: Dragica Vasileska

    This tutorial describes the constitutive equations for the drift-diffusion model and implementation details such as discretization and numerical solution of the algebraic equations that result from the finite difference discretization of the Poisson and the continuity...

  2. Numerical solution of the Drift-Diffusion Equations for a diode

    01 Jun 2010 | Contributor(s):: Dragica Vasileska

    This material describes the implementation and also gives the source code for the numerical solution of the Drift-Diffusion equations for a PN Diode. The code can be easily generalized for any 2D or 3D device.

  3. Physical and Analytical Description of the Operation of a PN Diode

    01 Jun 2010 | Contributor(s):: Dragica Vasileska

    A detailed physical and analytical description of the operation of PN diodes is given.vasileska.faculty.asu.eduNSF

  4. Worked Examples for a PN Diode

    01 Jun 2010 | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

    several worked examples are presented that illustrate the operation of a PN diode.

  5. Nanotechnology Animation Gallery

    22 Apr 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck

    Animations and visualization are generated with various nanoHUB.org tools to enable insight into nanotechnology and nanoscience. Click on image for detailed description and larger image download. Additional animations are also...

  6. PN junction in forward bias

    17 Apr 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck

    A PN junction is formed by joining p-type and n-type doped semiconductors together in very close contact. The p- and n-type semiconductors are conducting because of the available free carriers. However, because the carriers diffuse into the adjoining p and n regions by a process called...

  7. Illinois ECE 440 Solid State Electronic Devices, Lecture 21: P-N Diode Breakdown

    07 Mar 2010 | | Contributor(s):: Eric Pop

  8. Illinois ECE 440 Solid State Electronic Devices, Lecture 24: Narrow-base P-N Diode

    07 Mar 2010 | | Contributor(s):: Eric Pop

  9. Illinois ECE 440 Solid State Electronic Devices, Lecture 20: P-N Diode in Reverse Bias

    18 Nov 2009 | | Contributor(s):: Eric Pop

    Recap diode (forward, zero, reverse) bias diagrams.Recap some of the equations.

  10. Illinois ECE 440 Solid State Electronic Devices, Lecture 19: Current Flow in P-N Diode

    28 Oct 2009 | | Contributor(s):: Eric Pop

    Last time, we talked about unbiased p-n junction.Today: biased (Vext ≠ 0) p-n junction & current flow

  11. Illinois ECE 440 Solid State Electronic Devices, Lecture 18: P-N Diode Electrostatics

    22 Oct 2009 | | Contributor(s):: Eric Pop

    Last time, we talked about p-n junction built-in voltage V¬0.Today: more about p-n electrostatics.

  12. REGARDING SRH MODEL OF RECOMBINATION

    Q&A|Closed | Responses: 0

    IS THERE ANY SIMULATOR WHICH CAN BE USED TO DISPLAY SRH MODEL

    https://nanohub.org/answers/question/355

  13. Tutorial for PADRE Based Simulation Tools

    10 Aug 2009 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

    This tutorial is intended for first time and medium level users of PADRE-based simulation modules installed on the nanohub. It gives clear overview on the capabilities of each tool with emphasis to most important effects occuring in nano-scale devices.

  14. PN Junction Lab Exercise: Non-Idealities in a PN Diode

    24 Jun 2009 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

    This exercise explores the behavior of a non-ideal diode in which the generation-recombination mechanisms in the depletion region, high levels of injection, and series resistance effects can significantly affect the diode behavior.

  15. PN Junction Lab Exercise: Short vs. Long Diode

    24 Jun 2009 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

    This exercise examines the behavior of short vs. long diodes.

  16. Theory of PN Diodes

    23 Jun 2009 | | Contributor(s):: Dragica Vasileska

    This set of slides is intended to explain the operation of a PN diode to students.

  17. Basic operation of a PN diode - Theoretical exercise

    out of 5 stars 

    02 Aug 2008 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

    These exercises help the students better understand the operation of conventional, p+n and short diode.www.eas.asu.edu/~vasileskNSF

  18. PN Diode Exercise: Series Resistance

    out of 5 stars 

    06 Jul 2008 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

    An exercise in determining the series resistance in a PN diode.

  19. PN Diode Exercise: Graded Junction

    out of 5 stars 

    06 Jul 2008 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

    An exercise in determining the preferred approach to solving the Poisson equation.