Organic Optoelectronics

Lecture Notes

This section provides a detailed list of lecture topics and links to selected lecture notes.

Introduction to 6.973

Lecture 1. Welcome to 6.973 - Organic Optoelectronics (PDF)

From Molecules to Aggregates

Lecture 2. Organic Molecules – Structure and Nomenclature (PDF)

• Determining the Structure of Organic Compounds
• Carbon
• Covalent Bond (Lewis Structure Formalism)
• Molecular Geometry (Bond Length, Bond Angle)
• Electronic Structure of Atoms and Molecules (1st pass)
• Sigma and Pi Bonds

Lecture 3. Organic Molecules – Cyclic and Conjugated Molecules

• Cyclic Compounds
• Aromatic Hydrocarbons (C-Ö) Benzene
• Determining the Structure of Organic Compounds (Spectroscopy)

Lecture 4. Organic Molecules – Energy Levels

• Spectral Properties
• Einstein Transition Probabilities
• Raman Processes
• Born-Oppenheimer Approximation
• Frank-Condon Shift

Lecture 5. From Molecules to Aggregates

• Singlets and Triplets
• Born-Oppenheimer Approximation
• Frank-Condon Shift
• Aggregates

Lecture 6. Excited States of Aggregate Films

• Van der Waals Bonding
• Hydrogen Bonding
• Dimers
• Excimers
• Generation of Excitons

Lecture 7. Excitons - Types, Energy Transfer (PDF)

• Wannier Exciton
• Charge-transfer Exciton
• Frenkel Exciton
• Exciton Diffusion
• Exciton Energy Transfer (Förster, Dexter)

Lecture 8. Exciton Diffusion (PDF)

• Exciton Energy Transfer
• Exciton Diffusion
  • Photoluminescence Measurement
  • Photocurrent Measurement

Photocurrent, Photodetectors, Solar Cells

Lecture 9. Photovoltaics and Photodetectors – Part I (PDF)

• Photogeneration
• Organic Heterojunction Photovoltaic Cell
• Organic Multilayer Photodetector

Lecture 10. Photovoltaics and Photodetectors – Part II (PDF)

• Organic Heterojunction Photovoltaic Cell
• Organic Multilayer Photodetector

Lecture 11. Photovoltaic Cells and Photodetectors - Part III

• Blended Polymer Photovoltaics and Photodetectors
• Organic/Nanorod Photovoltaics
• Gratzel Electrochemical Cell

Growing and Pattering Thin Organic Films

Lecture 12. Growing and Pattering Thin Organic Films – Part I

• Purifying Organic Materials
• Growth Techniques:
• Spin-on
  • Evaporation
  • Langmuir-Blodget
  • Chemical Vapor Phase Deposition
  • Ink-Jet Printing
  • Self Assembly

Lecture 13. Measuring the Energy Structure of Thin Films: Growing and Pattering Thin Organic Films – Part II

• Measuring the Energy Structure

  • Photoemission Spectroscopy
  • Inverse Photoemission Spectroscopy
  • Cyclic Voltametry
  • Dipoles at the Organic Thin Film Interfaces

• Patterning Techniques

  • Soft Lithography
  • Chemically Selective Deposition
  • Cold Welding

Organic Light Emitting Devices

Lecture 14. Organic LEDs – Part I

• How Do We Perceive Color
• Basic OLED Properties and Performance
   

Lecture 15. Organic LEDs - Part II: Electrical Current in Organic Thin Films

• Charged Carrier Transport
• Ohmic
• Space Charge limited
• Trap-limited Space-charge Conduction
• Display Driving Schemes

Lecture 16. Organic LEDs – Part III

• Conventional (OLED)
• Transparent (TOLED)
• Inverted (OILED)
• Metal-Free (MF-TOLED)
• Flexible (FOLED)
• Stacked (SOLED)
• Organic LED Displays

Lecture 17. Organic LEDs – Part IV (Guest lecture by Professor Marc Baldo) (PDF)

• OLED Efficiency
• Spin
• Energy Transfer
• Organic Phosphors
• Singlet/Triplet Ratios
• Phosphor Sensitized Fluorescence
• Endothermic Triplet Energy Transfer

Lecture 18. Organic LEDs – Part V

• Extracting Light Out of OLEDs
• Time Sequenced OLED Backlights
• Flexible OLEDs

Lecture 19. Organic LEDs – Part VI (PDF)

• Exciton Recombination Region in Organic LEDs
• White OLED
• Flexible OLEDs
• Solvation Effect
• Solid State Solvation

Lecture 20. Organic LEDs – Part VII (PDF)

• Solvation Effect - Review
• Solid State Solvation
   

Lecture 20b. Organic LEDs – Part VII (PDF)

• Exciton Dynamics in Disordered Organic Thin Films
• Quantum Dot LEDs

Lasing Action in Organic Thin Films

Lecture 21. Organic Semiconducting Lasers - Part I

• Lasing Process
• Optically Pumped Lasing Structures

Lecture 22. Organic Semiconducting Lasers – Part II, and Organic Thin Film Transistors - Part I

• Optically Pumped Organic Lasers – Potential Benefits, Towards Electrical Pumping of Organic, Lasers, OTFTs - OFETs

Organic Field Effect Transistors

Lecture 23. Organic Thin Film Transistors - Part II and The Edge of Nano

• OFETs: Materials, Contacts, Applications, Display Drivers, Chemical Sensing, Single Molecule Memory, Nanotube Transistors, Nanotube Growth in Porous Alumina