Characterization of Evaporated Solid-Phase Crystallized Silicon Thin-Film Solar Cells on Glass

Fude Liu, M. J. Romero, K. M. Jones, O. Kunz, J. Wong, R. C. Reedy, A. G. Aberle, M. M. Al-Jassim

Research output: Contribution to conferencePaperpeer-review

3 Scopus Citations

Abstract

Following our previous study on the material-quality limiting factors of evaporated solid-phase crystallized (SPC) poly-Si thin films fabricated on planar glass for photovoltaic applications, we extend our study to investigate the impurity levels, optical properties, transport properties, and device performance of so-called "EVA" (EVAporated Si) solar cells. These potentially cost-effective cells are systematically characterized with electron microscopy-based techniques, external quantum efficiency, and standard current-voltage measurements. We conclude that 5% efficient cells are now attainable, and much room remains for further improving device performance. We are confident that 10%-efficient EVA solar cells will be realized in the future, with proper metallization schemes, good light trapping, and improved poly-Si film quality.

Original languageAmerican English
Pages445-449
Number of pages5
DOIs
StatePublished - 2009
Event2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States
Duration: 7 Jun 200912 Jun 2009

Conference

Conference2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Country/TerritoryUnited States
CityPhiladelphia, PA
Period7/06/0912/06/09

NREL Publication Number

  • NREL/CP-520-45910

Keywords

  • crystallization
  • glass
  • impurities
  • optical films
  • photovoltaic cells
  • photovoltaic systems
  • semiconductor thin films
  • silicon
  • solar power generation
  • thin film devices

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