Structural, Chemical and Luminescent Investigation of MBE- and CSS-Deposited CdTe Thin-Films for Solar Cells

John Moseley, Helio Moutinho, Manuel Romero, Kim Jones, Yanfa Yan, Mowafak Al-Jassim, Richard Ahrenkiel

Research output: Contribution to conferencePaperpeer-review

1 Scopus Citations

Abstract

In this study we combine scanning electron microscopy (SEM)-based cathodoluminescence (CL) spectrum imaging and electron backscatter diffraction (EBSD) in order to map the spatial distribution of various atomic-level defects in CdTe films as a function of deposition and film processing. Two different deposition techniques were used. Lattice-matched, epitaxial CdTe films were deposited on a single crystal as well as on polycrystalline CdTe substrates by molecular beam epitaxy (MBE). For comparison purposes, polycrystalline CdTe films were deposited using our standard close-spaced sublimation (CSS) method on glass-based substrates.

Original languageAmerican English
Pages2003-2006
Number of pages4
DOIs
StatePublished - 2013
Event39th IEEE Photovoltaic Specialists Conference, PVSC 2013 - Tampa, FL, United States
Duration: 16 Jun 201321 Jun 2013

Conference

Conference39th IEEE Photovoltaic Specialists Conference, PVSC 2013
Country/TerritoryUnited States
CityTampa, FL
Period16/06/1321/06/13

NREL Publication Number

  • NREL/CP-5200-57901

Keywords

  • Cathodoluminescence
  • CdTe
  • CSS
  • Electron backscatter diffraction
  • Grain boundaries
  • MBE
  • Thin-film solar cells

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