Elemental distribution and charge collection at the nanoscale on perovskite solar cells

Michael Stuckelberger, Tara Nietzold, Genevieve N. Hall, Bradley West, Jeremie Werner, Bjoern Niesen, Christophe Ballif, Volker Rose, David P. Fenning, Mariana Bertoni

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

4 Scopus citations

Abstract

Unveiling the correlation between elemental composition, fermi-level splitting, and charge collection in perovskite solar cells (PSCs) exposed to different environments is crucial to understanding the origin of defects. This will enable defect engineering to achieve high performing and long lasting perovskite solar cells. In this contribution we measured for the first time the spatial distribution and charge collection efficiency at the nano-scale by synchrotron-based x-ray fluorescence (XRF) and x-ray beam induced current (XBIC) with sub-grain resolution, and we observe a correlation between Pb/I ratio and charge collection efficiency. In contrast to other thin-film solar cells, perovskite solar cells are highly sensitive to ambient conditions (atmosphere and illumination). As the XRF and XBIC measurements were conducted in vacuum under an x-ray source illumination, the impact of measurement conditions on the measurements need to be taken into account. Furthermore, necessary conditions for quantification of XRF/XBIC measurements are not fulfilled for perovskite solar cells. Therefore, we will discuss fundamentals of XRF/XBIC measurements of perovskite solar cells that will enable reliable quantitative, high-resolution measurements of elemental distribution and charge collection.

Original languageEnglish (US)
Title of host publication2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1191-1196
Number of pages6
Volume2016-November
ISBN (Electronic)9781509027248
DOIs
StatePublished - Nov 18 2016
Event43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 - Portland, United States
Duration: Jun 5 2016Jun 10 2016

Other

Other43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
CountryUnited States
CityPortland
Period6/5/166/10/16

Keywords

  • charge collection
  • Perovskite
  • solar cell
  • XBIC
  • XRF

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Stuckelberger, M., Nietzold, T., Hall, G. N., West, B., Werner, J., Niesen, B., Ballif, C., Rose, V., Fenning, D. P., & Bertoni, M. (2016). Elemental distribution and charge collection at the nanoscale on perovskite solar cells. In 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016 (Vol. 2016-November, pp. 1191-1196). [7749803] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2016.7749803