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The Lee Group at Yale works at the intersection between electrical engineering and materials science. We aim to establish connections between material growth conditions, material structure at the micro- and nano-scale, optical properties, electrical properties, and device performance. Current areas of interest include:

  • Multi-junction solar cells and solar cell materials
    • Wide-bandgap solar cells for high-efficiency concentrator and space photovoltaics
    • III-V cell integration on Si for low-cost, high-efficiency photovoltaics
  • Growth and device applications of self-assembled quantum dots (SAQDs) on GaP/Si platforms
  • Fundamental aspects of epitaxial self assembly and quantum dot growth
  • Metamorphic mid-infrared materials and devices
Quantum dot LED on Si

InGaAs quantum dot LED grown on GaP/Si template. MBE growth, device fabrication, and testing by Yuncheng Song (2013).