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An Introduction to Organic Solar Cells

An Introduction to Organic Solar Cells . Alexander Parker. Why Do We Need Solar?. Population (Billion). Source: Google Public Data. Source: BP. Why Do We Need Solar?. Types Of Solar Cell. Polymer devices: 8%. Inorganic devices: 24.7%. Dye Sensitised devices: 11%.

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An Introduction to Organic Solar Cells

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  1. An Introduction to Organic Solar Cells Alexander Parker

  2. Why Do We Need Solar? Population (Billion) Source: Google Public Data Source: BP

  3. Why Do We Need Solar?

  4. Types Of Solar Cell Polymer devices: 8% Inorganic devices: 24.7% Dye Sensitised devices: 11% Thin film organic devices: 9.8%

  5. Organic Devices: A History • Single layer (MIM): 0.5% • Metal-Insulator-Semiconductor (MIS): 0.7% • Bilayer: 0.95% (Tang) • Tandem cell : 9.8 %

  6. Organic Devices: Principals Of Operation 2. Formation of an exciton 1. Absorption of a photon 3. Diffusion of the exciton 4. Dissociation of the exciton 5. Charge transport 6. Charge collection Anode Electrode Cathode Electrode Donor Acceptor

  7. Organic Devices: Architecture • Bilayer • Inverted • Bulk Heterojunction

  8. Organic Devices: Materials • Donors • Copper pthalocyanine (CuPc) • BoroSubthalocyanine Chloride (SubPc) • Acceptors • C60 • Extracting materials • Bathocuproine (BCP) • Molybdoenum Oxide (MoOx)

  9. Project Directions: Transition Metal Oxides • Transition metal oxides widely used in organic devices. • ITO electrode • Zn extracting layer • MoOx • Aim to use Aluminium doped Zinc Oxide for several purposes • Replace BCP • Replace ITO

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