Optimization of Phase-Engineered a-Si:H-Based Multi-Junction Solar Cells: Final Technical Report, October 2001-July 2005

Research output: NRELSubcontract Report

Abstract

The scope of the work under this subcontract has involved investigating engineered improvements in the performance and stability of solar cells in a systematic way, which included the following four tasks: 1. Materials research and device development; 2. Process improvement directed by real time diagnostics; 3. Device loss mechanisms; and 4. Characterization strategies for advanced materials Ourwork has resulted in new and importan`t insights into the deposition of a-Si:H-based materials, as well as into the nature of the Staebler-Wronski Effect (SWE). Presumably, many of these insights will be used by industrial partners to develop more systematic approaches in optimizing solar cells for higher performance and stability. This effort also cleared up several serious misconceptions aboutthe nature of the p-layer in cells and the SWE in materials and cells. Finally, the subcontract identified future directions that should be pursued for greater understanding and improvement.
Original languageAmerican English
Number of pages82
StatePublished - 2006

Bibliographical note

Work performed by Pennsylvania State University, University Park, Pennsylvania

NREL Publication Number

  • NREL/SR-520-40400

Keywords

  • amorphous silicon
  • devices
  • high performance
  • manufacturing
  • materials research
  • phase engineering
  • PV
  • real-time diagnostics
  • solar cells
  • Staebler-Wronski effect

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