Quantification of Atomic Scale Defects in Poly Si PV Devices using Atom Probe Tomography

Research output: Contribution to conferencePaperpeer-review

2 Scopus Citations

Abstract

Characterization of defect locations and their effects on transport in polycrystalline Si photovoltaics is readily accomplished using optical and electrical characterization. Information on the elemental nature of these defects is more difficult due to both the low concentrations and highly localized positions. This work demonstrates the ability to locate and elementally analyze electronic defects in these devices using correlative electron microscopy and spectroscopy within a focused ion beam specimen preparation tool followed by 3-D atom probe tomography.

Original languageAmerican English
Pages1498-1500
Number of pages3
DOIs
StatePublished - 2012
Event38th IEEE Photovoltaic Specialists Conference, PVSC 2012 - Austin, TX, United States
Duration: 3 Jun 20128 Jun 2012

Conference

Conference38th IEEE Photovoltaic Specialists Conference, PVSC 2012
Country/TerritoryUnited States
CityAustin, TX
Period3/06/128/06/12

NREL Publication Number

  • NREL/CP-5200-57523

Keywords

  • atom probe tomography
  • electron beam induced current
  • photovoltaic cells
  • silicon

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