4.6 Article

Enhanced quantum efficiency of Ge solar cells by a two-dimensional photonic crystal nanostructured surface

Journal

APPLIED PHYSICS LETTERS
Volume 94, Issue 19, Pages -

Publisher

AMER INST PHYSICS
DOI: 10.1063/1.3133348

Keywords

elemental semiconductors; gallium compounds; germanium; III-V semiconductors; indium compounds; nanostructured materials; photoconductivity; photonic crystals; p-n junctions; solar cells

Funding

  1. CONSOLIDER-Ingenio 2010 Genesis-FV project [CSD2006004, TEC200502745, TEC200422300E]
  2. NUMANCIA [S05050/ENE/0310]
  3. [NAN2004-08843-C05-04]
  4. [NAN2004-09109-C0401]
  5. [TEC-2005-05781-C03-01]

Ask authors/readers for more resources

A single-junction germanium solar cell with a photonic crystal nanostructured surface has been developed. The solar cell comprises a Ge p-n junction and an InGaP window layer. The InGaP window layer has been nanopatterned with an extended photonic crystal structure consisting on a triangular lattice of holes with submicronic sizes. Enhancements of the external quantum efficiency of 22% for a wide range of wavelengths and up to a 46% for specific wavelengths have been measured, which implies an increase in photocurrent between 11% and 22%. A clear correlation with the area of photonic crystal patterned has been observed.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available