Template:WikipediaMolecular Beam Epitaxy (MBE) is a material production process used to produce high-purity nano-scale materials. A material is grown through interactions between a substrate and one or more beams of atoms or molecules incident upon the substrate's surface. MBE exhibits many advantages over similar thin film deposition processes: significantly improved purity, arbitrarily sharp deposition resolution, and operation at low temperatures. Template:MECH370
Introduction
- Image of atomic deposition
System Description
- Insert Image of MBE layout.
- discussion of non-equilibrium state
Substrate Stage
- heating, purpose, rotation, function
Effusion Cells
- Thermodynamics (surface interactions, necessity for UHV)
Shuttering
- How it works and why it is so useful!
Sample Interaction
- Discussion of a sample material produced via MBE and what happens? (may be too inorganic chemistry-oriented)
Efficiency Considerations
- degass cleaning? time...?
- effect of chemistry-related changes on outcome (Al on GaAs thing, N stuff, etc.)
- Temperature considerations
Applications
Semiconductors
- Sharp doping profiles
Heterojunctions
- Applications in photovoltaic cells
Optoelectronics
- Lasers! LEDs! Digital Cameras! DVDs! (Check out HD stuff (BluRay, etc.))