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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.
Neutron Induced Fission Betavoltaic Battery
11 Apr 2012 | | Contributor(s):: Marvin Tan
A betavoltaic battery having layers of fissile radioisotopes 8, moderating material 7, beta-decaying radioisotopes 6, and semiconductor diode 4 & 5 adjacently stacked one above another, is proposed. Neutrons produced by the chain reaction in the fissile radioisotope 8 are slowed down by the...
Solve a Challenge for a PN Diode
08 Jun 2010 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck
This is SOLVE A CHALLENGE PROBLEM for pn-diodes.
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...
Physical and Analytical Description of the Operation of a PN Diode
A detailed physical and analytical description of the operation of PN diodes is given.vasileska.faculty.asu.eduNSF
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.
Numerical solution of the Drift-Diffusion Equations for a diode
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.
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 available Featured nanoHUB tools: Band Structure Lab. Carrier...
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...
Illinois ECE 440 Solid State Electronic Devices, Lecture 24: Narrow-base P-N Diode
07 Mar 2010 | | Contributor(s):: Eric Pop
Illinois ECE 440 Solid State Electronic Devices, Lecture 21: P-N Diode Breakdown
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.
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
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.
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.
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.
PN Junction Lab Exercise: Short vs. Long Diode
This exercise examines the behavior of short vs. long diodes.
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.
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
PN Diode Exercise: Series Resistance
06 Jul 2008 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck
An exercise in determining the series resistance in a PN diode.
PN Diode Exercise: Graded Junction
An exercise in determining the preferred approach to solving the Poisson equation.