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 Source: Wikipedia
-orbital H H H H C = C C = C H H H H Source: Wikipedia
Molecular description of band gap Anti-Bonding sp 3 sp 3 Bonding
Molecular description of band gap Anti-Bonding LUMO p z p z HOMO Bonding
HOMO and LUMO LUMO HOMO Source: Lectures Tom Savenije, TUDelft
Electron donor and acceptor materials Vacuum Level LUMO HOMO
Electron donor and acceptor materials Vacuum Level Ionization Energy LUMO HOMO
Electron donor and acceptor materials Vacuum Level Ionization Energy Electron Affinity LUMO LUMO HOMO HOMO
Electron donor and acceptor materials Vacuum Level Ionization Energy Electron Affinity LUMO LUMO HOMO HOMO Electron Donor Electron Acceptor
Electron donor and acceptor materials Vacuum Level LUMO LUMO HOMO HOMO Electron Donor Electron Acceptor
Electron donor and acceptor materials Vacuum Level LUMO LUMO HOMO HOMO Electron Donor Electron Acceptor
Organic solar cell Electrode 1 (ITO, METAL) Electron donor L dif Electron acceptor Electrode 2 (Al, Mg, Ca)
Bulk Heterojunction Organic solar cell Electrode 1 Electrode 2 (ITO, metal) (ITO, METAL) Dispersed hetreojunction Electron acceptor Electrode 2 (Al, Mg, Ca)
Transparent Electrode Electrolyte TiO 2 l 3 3l Light Counter Electrode
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
Dye-Sensitized Solar Cells
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