Center for Energy Efficient Materials (CEEM)


John Bowers

Lead Institution:

University of California, Santa Barbara




To discover and develop materials that control the interactions among light, electricity, and heat at the nanoscale for improved solar energy conversion, solid-state lighting, and conversion of heat into electricity.

Research Topics:

solar (photovoltaic), solid state lighting, phonons, thermoelectric, bio-inspired, energy storage (including batteries and capacitors), electrodes - solar, defects, charge transport, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable processing) 

Materials Studied:

MATERIALS: semiconductor, organic semiconductor, wide band-gap semiconductor, metal, oxide, polymer, rare earth elements, optoelectronic and metamaterial, transparent conductor
INTERFACES: organic/semiconductor, organic/oxide, organic/organic, organic/metal, metal/semiconductor, metal/oxide, semiconductor/semiconductor, solid/solid
NANOSTRUCTURED MATERIALS: 0D, 1D, 2D, 3D, nanocomposites

Experimental and Theoretical Methods:

X-ray diffraction and scattering, electron microscopy, scanning probe microscopy, lithography, surface science, neutron diffraction and scattering, ultrafast physics, density functional theory (DFT), quantum mechanics


Partner Institutions:

  • University of California, Santa Barbara
  • Purdue University
  • Los Alamos National Laboratory
  • National Renewable Energy Laboratory

BES Staff Contact:

Chris Fecko