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Build a Better CD Player: How Can You Get Blue Light from a Solid? Module written by George C. Lisensky, Arthur B. Ellis, Herbert Beall, Dean J. Campbell, and Joanne Stewart. Quicktime Movies by G. C. Lisensky and J. M. Blackwell |
Session 1: How can you make a solid give off light?
Exploration 1A: How can you make a solid give off light?
Light and heat as energy
Exploration 1B: What is the nature of light?
Electromagnetic Radiation
Exploration 1C: Can you control what colors you get when heating a solid?
Exploration 1D: How can you draw a graph when you have a huge range of
values?
Logarithmic Scales
Session 2: Which solid elements can be heated electrically to give off light?
Exploration 2A, Which solid elements can be heated electrically to give
off light?
Metallic Bonding
Exploration 2B, How does the electrical conductivity of a material depend
on its shape and temperature?
Electrical Resistance
Exploration 2C, How would you design an incandescent (blackbody emitting)
bulb?
Melting Points
The Incandescent Bulb
Why does a light bulb burn out? (http://invsee.eas.asu.edu/nmodules/lightbulbmod/burnout.html)
An incandescent light bulb has been burning for 100 years:
Century
Light Bulb (audio), All Things Considered, National Public Radio,
June 10, 2001
Live web cam (http://www.centennialbulb.org/cam.htm)
Exploration 2D, How can we represent solids?
Unit Cells
Session 3: What pairs of elements will combine to make solids?
Exploration 3A, What controls the properties of elements?
Periodic Properties
Exploration 3B, What pairs of elements will combine to make solids?
Isoelectronic Principles
Exploration 3C, How do we know how atoms are arranged on solid surfaces?
Seeing Atoms
Session 4: How can you get light from a solid without heating?
Exploration 4A, How can you get light from atoms?
Electronic Transitions in Atoms
Exploration 4B, How can you get light from a solid without heating?
Electronic Transitions in Solids
LEDs: the Future of Light (http://loe.org/series/LED.php)
Exploration 4C, Are All Red Lights the Same?
LED vs Blackbody Emission
Session 5: How does a CD player work?
Exploration 5A, How does a CD player work?
Constructive and Destructive Interference
Exploration 5B, How do we know how atoms are arranged in solids?
X-ray Diffraction
Session 6: How can you get blue light from a solid?
Exploration 6A, How can you get blue light from a solid?
Adjusting Band Gaps
Optional Later Session: Are there equilibria in solids?
Copyright © 2004 by the trustees of Beloit College and the Regents of the University of California. This Module has been developed under the direction of the ChemLinks Coalition, headed by Beloit College, and the ModularChem Consortium, headed by the University of California at Berkeley. This material is based upon work supported by the National Science Foundation grants No. DUE-9455918 and DUE-9455924. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation, Beloit College, or the Regents of the University of California.
Additional material is based upon work supported by the National Science Foundation grant No. DMR-9632527. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation or the Regents of the University of Wisconsin.
ZnSunit, orange, NaCl, and afm movies copyright © 1999 by JCE Software and used by permission of JCE Software, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706-1396.
Published through exclusive license with W. W. Norton.
Build a Better CD Player: How Can You Get Blue Light from a Solid? ISBN 0-393-92430-0
This page maintained by George Lisensky, Beloit College. Last modified September 29, 2007.
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