Condensed Matter Physics
Nano-crystalline Silicone-based Solar Cells:
We study nano-crystalline silicon-based solar cells to improve charge carrier mobility, energy conversion efficiency, and cost effective solar cell device. The phase transition from amorphous to crystalline structure during growing process using CVD deposition system is under investigation.
Photonic Band Gap Structure to Trap Light in Solar Cells:
Analogous to the electronic band gap structure in the periodic crystal lattice forbids or allows electrons with certain ranges of energy to excite from the valence band to the conduction band, the photonic band gap structure of periodic dielectric material controls propagations of light with certain ranges of frequencies. This could be used in conjunction with solar cell devices to trap unused light to thermally funnel into solar cell band gap to increase device efficiency.
Spintronics is to take advantage of both electric charge and spin states. Non-magnetic thin semiconducting films transforms to ferromagnetic when doped with transition metals, such as Mn, Fe, Co, or Zn. Layered structures of ferromagnetic Diluted magnetic semiconducting thin films are perfect candidates for spintronics.
Researcher Website: http://www.engineering.sdstate.edu/~huhy/huhy.htm
South Dakota
State University College of Engineering
Department of Physics
Box 2219
Brookings, SD 57007
voice: (605) 688-5428
fax: (605) 688-5878