Can vacancies and their complexes with nonmetals prevent the lifetime reaching its intrinsic limit in silicon?

  • Fiacre E. Rougieux
  • , Nicholas E. Grant
  • , Daniel Macdonald
  • , John D. Murphy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recombination active defects are found in as-grown high-purity Czochralski (Cz) and Floating Zone (FZ) n-type silicon wafers. Due to their low concentrations, the observed defects are unlikely to be identified through Deep-Level Transient Spectroscopy (DLTS) or Electron Paramagnetic Resonance (EPR), hence we use photoluminescence imaging, lifetime spectroscopy, and defect imaging along the ingot to help identify the defect(s). Our experimental findings suggest that vacancy-related complexes incorporated during ingot growth may be responsible for the decreased minority carrier lifetime.

Original languageEnglish
Title of host publication2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)9781479979448
DOIs
Publication statusPublished - 14 Dec 2015
Event42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States
Duration: 14 Jun 201519 Jun 2015

Publication series

Name2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015

Conference

Conference42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
Country/TerritoryUnited States
CityNew Orleans
Period14/06/1519/06/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • amorphous materials
  • charge carrier lifetime
  • photovoltaic cells
  • silicon

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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