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Thin-Film PV Technologies Organic PV Technology Week 5.5 Arno - PowerPoint PPT Presentation

Thin-Film PV Technologies Organic PV Technology Week 5.5 Arno Smets Organic Solar Cells Source: Siemens Organic Materials Source: Lectures Tom Savenije, TUDelft Conjugated systems: Benzene Source: Wikipedia Conjugated systems: Benzene


  1. Thin-Film PV Technologies Organic PV Technology Week 5.5 Arno Smets

  2. Organic Solar Cells Source: Siemens

  3. Organic Materials Source: Lectures Tom Savenije, TUDelft

  4. Conjugated systems: Benzene Source: Wikipedia

  5. Conjugated systems: Benzene Source: Wikipedia

  6.  -orbital H H H H C = C C = C H H H H Source: Wikipedia

  7. Molecular description of band gap Anti-Bonding sp 3 sp 3 Bonding

  8. Molecular description of band gap Anti-Bonding LUMO p z p z HOMO Bonding

  9. HOMO and LUMO LUMO HOMO Source: Lectures Tom Savenije, TUDelft

  10. Electron donor and acceptor materials Vacuum Level LUMO HOMO

  11. Electron donor and acceptor materials Vacuum Level Ionization Energy LUMO HOMO

  12. Electron donor and acceptor materials Vacuum Level Ionization Energy Electron Affinity LUMO LUMO HOMO HOMO

  13. Electron donor and acceptor materials Vacuum Level Ionization Energy Electron Affinity LUMO LUMO HOMO HOMO Electron Donor Electron Acceptor

  14. Electron donor and acceptor materials Vacuum Level LUMO LUMO HOMO HOMO Electron Donor Electron Acceptor

  15. Electron donor and acceptor materials Vacuum Level LUMO LUMO HOMO HOMO Electron Donor Electron Acceptor

  16. Organic solar cell Electrode 1 (ITO, METAL) Electron donor L dif Electron acceptor Electrode 2 (Al, Mg, Ca)

  17. Bulk Heterojunction Organic solar cell Electrode 1 Electrode 2 (ITO, metal) (ITO, METAL) Dispersed hetreojunction Electron acceptor Electrode 2 (Al, Mg, Ca)

  18. Transparent Electrode Electrolyte TiO 2 l 3 3l Light Counter Electrode

  19. Principle of Dye Sensitized Solar Cell 2Dye + + 3I -  2Dye + I 3 - I - LUMO S * Cond. - I 3 S HOMO Val. TiO 2 Dye + Dye Electrolyte Pt - + 2e -  3I - I 3

  20. Dye-Sensitized Solar Cells

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