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ECE Course Syllabus

ECE6540 Course Syllabus


Organic Optoelectronics (3-0-3)

Technical Interest
Optics and Photonics



Catalog Description
Fundamental understanding of the optical and electronic properties of organic materials and devices that form the basic of the emerging technological area of printed flexible optoelectronics.

No Textbook Specified.

Indicators (SPIs)
SPIs are a subset of the abilities a student will be able to demonstrate upon successfully completing the course.

Outcome 1 (Students will demonstrate expertise in a subfield of study chosen from the fields of electrical engineering or computer engineering):
1.	Explain the fundamental physical concepts associated with the optical (linear optical properties, light emission, light harvesting, and energy transfer) and electronic (charge injection, charge transfer, charge transport) properties of organic conjugated materials.  
2.	Relate basic physical concepts to the principle of operation, performance, and future optimization of optoelectronic devices and circuits based on organic materials.

Outcome 2 (Students will demonstrate the ability to identify and formulate advanced problems and apply knowledge of mathematics and science to solve those problems):
1.	Draw chemical structures, recognize conjugated materials with electron donating, and electron withdrawing groups and relate their structure to specific optical and electrical properties of thin films made with these structures.

2.	Understand the fundamentals of photometry and color, the principles of light emission in organic molecules, and determine the luminance, quantum efficiency, and luminous efficiency of light sources.

Outcome 3 (Students will demonstrate the ability to utilize current knowledge, technology, or techniques within their chosen subfield):
1.	Design, fabricate, and test organic optoelectronics devices such as organic light-emitting diodes, organic photovoltaics devices, organic thin-film transistors, and organic sensors.

Topical Outline
Role of semiconducting plastics in current technologies; reviews of the basic concepts of chemistry; terminology; molecules, polymers, supramolecular structures; molecular weight, number average molar mass; weight average molar mass; heterogeneity index; glass transition temperature.

Bohrs classical model of the hydrogen atom; Aufbau process; electronic configuration of elements; molecular orbitals; ? and A orbitals; dipole moment; ionization potential and electron affinity.

Linear optical properties of dielectrics: Maxwells equations in CGS and SI units; polarizability, complex dielectric function, propagation equation, complex refractive index, dispersion, Lorentz oscillator; Fourier representation; crystal optics, tensor notation, index ellipsoid.

Introduction to nonlinear optics; properties of the nonlinear susceptibility tensor; contracted notation.

Nonlinear optical properties of molecules: first and second hyperpolarizabilities; structure-property relationships in nonlinear organic materials; two-level model.  Eulers angles and the transformation matrix; oriented gas model, Maxwell Boltzmann distributions, order parameters.

Introduction to electro-optics; electro-optic modulators: properties and applications.

Introduction to modern xerography.

Photogeneration in organic solids; Onsager model for photogeneration.  Charge transport in organic solids; disorder formalism; positional and energetic disorder; time-of-flight experiments.  Charge injection into organic solids; childs law; space-charge limited current method; introduction to photorefractivity; Kukhtarev model for photorefractivity.

Two-beam coupling in photorefractive materials; photopolymers and holographic storage

Light emission in organic solids; the linear harmonic oscillator; transition selection rules; fluorescence, and phosphorescence; Forster and Dexter energy transfer.  Flat panel display technologies; Physics of liquid-crystal displays; organic light-emitting diodes: materials, devices and applications; fundamentals of radiometry

Organic photovoltaic cells; solar spectrum; equivalent circuit; conversion efficiency, excitonic solar cells, electrochemical solar cells.  Organic field-effect transistors; organic memories; flexible organic circuits.