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Strain-Driven Quantum Dot Self-Assembly By Molecular Beam Epitaxy, Kathryn E. Sautter, Kevin D. Vallejo, Paul J. Simmonds
Strain-Driven Quantum Dot Self-Assembly By Molecular Beam Epitaxy, Kathryn E. Sautter, Kevin D. Vallejo, Paul J. Simmonds
Physics Faculty Publications and Presentations
Research into self-assembled semiconductor quantum dots (QDs) has helped advance numerous optoelectronic applications, ranging from solid-state lighting to photodetectors. By carefully controlling molecular beam epitaxy (MBE) growth parameters, we can readily tune QD light absorption and emission properties to access a broad portion of the electromagnetic spectrum. Although this field is now sufficiently mature that QDs are found in consumer electronics, research efforts continue to expand into new areas. By manipulating MBE growth conditions and exploring new combinations of materials, substrate orientations, and the sign of strain, a wealth of opportunities exist for synthesizing novel QD nanostructures with hitherto unavailable …