logo2
RENEWABLE ENERGY AND APPLIED PHOTONICS
Link to Tufts SOE
Link to Home Page Lab members Research in lab Facilities in use Funding
glow1PhC1chip1MM1Diode1
   Lab outreach activities    Lab publications and talks        Useful links        Who we work with....

 

Active Research Projects:

Materials Research

  • Phonon scattering reduction in infrared materials
  • Auger recombination reduction in infrared materials
  • Epitaxy of thallium and bismuth based small bandgap semiconductors and semimetals
  • Effects of surfactants and interfactants on III-V epitaxial crystal growth
  • SiGeSn materials system
  • Heterogeneous integration of group-IV  (C, Si, Ge, and Sn) with III-V materials
  • Earth-abundant simultaneous transparent conducting oxide and anti-reflective coating materials
  • Transparent semiconductors for the mid to far infrared

Photovoltaics (PVs)

  • Monolithic multi-lattice multijunction ultra-efficient concentrating PV solar cells
  • Novel small band-gap sub-cell materials for multijunction cells
  • Earth-abundant simultaneous transparent conducting oxide and anti-reflective coating materials
  • Earth-abundant PV materials
  • Split junction concentrating photovoltaics.

Thermophotovoltaics (TPVs)

  • Extended wavelength (2-10 micron) TPV cells
  • Nano-structure enhanced performance TPV cells.

Metamaterials (MMs)

  • High temperature selective thermal emitters for TPV cells
  • Long wavelength selective thermal emitters for TPV cells
  • Static and dynamic polarizers for photodetctor applications
  • Photonic Crystal Filters for TPV and photodetector applications

 

Photodetectors

  • Type-II strained-layer superlattices (SLS) IR photodetectors
  • Quantum dots in a well (DWELL) IR photodetectors
  • Low-noise, multi-spectral, tunable, detectors for IR astronomy

High-Speed Devices

  • Terahertz transistors
  • High-speed, low-voltage, semimetal-semiconductor rectifying diodes
  • Novel strain-free gate/channel materials for high-speed (500+ GHz)  DHBTs and FETs

 

Past Research Projects:

Germanium quantum-dot quantum cellular automata (QCA)

Silicon-Germanium quantum dot superlattices

Sb-based type-II DHBT high-speed transistors

 

Special Projects:

(See link)