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The University of Texas at Austin Department of Chemical Engineering ChE 384: Nanomaterials Chemistry UNIQUE # 14850; Spring Semester 2013 Instructor: Brian A. Korgel Office: CPE 4.462—Office Hours: TBA Telephone: 471-5633 Email: [email protected] TA: Taylor Harvey Office: TBA—Office Hours: TBA Telephone: TBA Email: [email protected] MEETING TIMES: Lecture: T/Th 2:00-3:30—CPE 2.220 This course provides a rigorous introduction to nanomaterials science and engineering. The course focuses on the fundamental chemical and physical concepts important to the field. The goal of the course is to enable students to read and understand basic concepts prevalent in the “nano” literature, and to recognize the current issues facing researchers in the field. Course Outline: Structure; Preparative methods; Defects; Mechanical properties; Electronic properties; Optical properties; Magnetic properties; Biological/nanoscale materials; Catalytic properties; Applications Text: Lecture Notes Posted on Blackboard Prerequisites: Graduate standing required. Undergraduate students require consent of instructor. __________________________ Course Requirements: The coursework will consist of one homework set each week, two mid-term exams, and one final exam: Grading: Homework In-class exams (2) Final exam (Friday, 5/9; 9am-noon) 30% 40% 30% A: 88-100; A-: 85-88; B+: 82-85; B: 73-82; B-: 70-73; C+: 65-70; C: 55-65; D: <55 The University of Texas at Austin provides, upon request, appropriate academic adjustments for qualified students with disabilities. For more information, please contact the Office of the Dean of Students at 4716259, 471-4641 TTY. Topics covered in ChE 384 Nanomaterials Chemistry 1. Optical properties of semiconductor quantum dots and metal nanocrystals. a. particle-in-a-box b. semiconductor band structure c. effective mass approximation--concept of envelope function and quantization d. Coulomb electron-hole interaction e. Selection rules and allowed transitions f. photoluminescence--size dependence and quantum yields g. photoluminescence lifetimes (radiative rates) and electron-hole exchange interactions (the "dark" exciton) h. plasmons and metal nanocrystals i. plasmonics of metal nanoshells and nanorods j. plasmonic semiconductor nanocrystals 2. Coulomb blockade and discrete charge injection into nanostructures a. Classical description of Coulomb blockade (Coulomb staircase, charging) b. scanning tunneling spectroscopy of single nanocrystals c. electrochemical charge injection and quantization in CV and DPV scans d. difference between charging energies for semiconductor and metal nanocrystals e. correlation between STS and optical properties--quasiparticle gap vs optical gap 3. Electronic devices a. Introduction to silicon CMOS: transistor operation and new challenges on the "roadmap" b. Alternative architectures for Si CMOS c. Molecular electronics: brief historical overview of pitfalls and progress 4. Optoelectronic devices and applications, batteries and others… a. Light-emitting diodes (LEDs) b. Photovoltaics (solar cells) c. Large-area electronics: displays, sensors and solar cells d. Photocatalysts and solar fuel applications e. Lithium ion batteries and energy storage 5. Magnetic properties and spintronics a. Magnetic properties at the nanoscale: superparamagnetism—the blocking temperature, relationship between energy barrier to spin flipping and anisotropy and size b. Magnetic heterostructures: Antiferromagnetic/ferromagnetic spin coupling; giant magnetoresistance spin-dependent tunneling, MRAM 6. Nanomaterials synthesis a. arrested precipitation (colloidal quantum dots) b. surfactants and nanocrystals: liposomes, micelles, coatings c. Size distribution and its relationship to growth mechanisms: diffusion-limited growth and Brownian coagulation d. Shape control: nanorods and nanowires e. Vapor-liquid-solid (VLS) growth of nanowires 7. Carbon—nanotubes, buckeyballs and graphene a. Nanotube structure: (n,m) indexing and chirality b. Nanotube properties: metallic vs semiconductor c. Metal particle seeded growth (CVD), HiPCO process d. Graphene Production and applications 8. Bionano a. Biocompatible coatings of nanomaterials b. Biological sensing using nanomaterials c. Combined disease diagnostics/therapy