Uhh... - ExcitonQuenchingand MigrationinConjugated Polymers...

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Exciton Quenching and  Migration in Conjugated  Polymers Group 6 Michael Bynum Carla Paulo Michael Postolowski
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What is a  Conjugated  Polymer? polymer with an  extended  -orbital  π system that  delocalizes the  electrons across the  molecule Sp2 + pz carbons http://www.lbl.gov/Science-Articles/Archive/assets/ images/2002/Aug-14-2002/MgB2_pi_bonds.jpg http://cnx.org/content/m25670/latest/ http://www.lbl.gov/Science-Articles/Archive/assets/ images/2002/Aug-14-2002/MgB2_pi_bonds.jpg Graphite Structure Graphite in Pencils Polyacetylene
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Basic Knowledge Electricity electrons - tiny  particles with a  negative charge stream of electrons  flowing from one  point to another Conduction describes a material's  ability to transport  electricity metals are good  conductors. glass are poor  conductors or  insulators http://www.qrg.northwestern.edu/pr ojects/vss/docs/media/Thermal/elect ricity-flow.gif Electrons Nucleus  protons  and  neutrons Electron  Enters One  Electron  flies to the  next atom One  Electron  flies to the  next atom Electrons  fly on
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Semiconductors materials with a  magnitude of  conductivity between  good conductors and  insulators. can very easily control  how current passes  through them Used in transistor,  diodes, solar cells, etc. http://www.homemadeenergyreview.com/blog/wp- content/uploads/2010/09/photovoltaic-solar-panel- system.png
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Basic Atomic Structure all matter is made up  of atoms  atom consist of  protons, neutrons and  electrons.  protons have a  positive charge electrons are  negatively charged http://genesismission.jpl.nasa.gov/science/mod 2_aei/fig2.gif
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Basic Atomic Structure protons and neutrons  are the center  (nucleus) of the atom electrons orbit around  this center atomic number equals  the number of protons  in the atom the number of protons  http://apchemcyhs.wikispaces.com/file/view/ato m_structure1.jpg/36725531/atom_structure1.jpg
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Shells and Energy Levels electrons always strive  to be energy efficient it will try to keep its  energy speed as low  as possible each atom has a fixed  number of electrons these electrons are  divided into shells  http://www.anus.com/zine/articles/alexis/hy permaterialism/atom_structure.jpg
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Shells and Energy Levels valence shell is the  highest shell occupied  with electrons electrons in the  valence shell are  called valence  electrons valence shell are not  the outermost of all  shells http://image.wistatutor.com/content/structure- atom/valence-electron-of-atom.jpeg
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Shells and Energy Level electrons go from a low  energy shell to a higher one  when energy corresponding  to the energy difference 
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This note was uploaded on 12/06/2011 for the course PHIL 482 taught by Professor Harris during the Fall '02 term at Texas A&M.

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Uhh... - ExcitonQuenchingand MigrationinConjugated Polymers...

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