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Title: Intermediate Bandgap Solar Cells From Nanostructured Silicon

This project aimed to demonstrate increased electronic coupling in silicon nanostructures relative to bulk silicon for the purpose of making high efficiency intermediate bandgap solar cells using silicon. To this end, we formed nanowires with controlled crystallographic orientation, small diameter, <111> sidewall faceting, and passivated surfaces to modify the electronic band structure in silicon by breaking down the symmetry of the crystal lattice. We grew and tested these silicon nanowires with <110>-growth axes, which is an orientation that should produce the coupling enhancement.
  1. Bandgap Engineering, Lincoln, MA (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
final rppr technical report
DOE Contract Number:
Resource Type:
Technical Report
Research Org:
Bandgap Engineering, Lincoln, MA (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Program (EE-2A)
Country of Publication:
United States
14 SOLAR ENERGY nanowires