Linking Transient Voltage to Spatially-Resolved Luminescence Imaging to Understand Reliability of Perovskite Photovoltaics

Yasas Patikirige, Dana Sulas-Kern, Marco Nardone, Steve Johnston, Chuanxiao Xiao, Harvey Guthrey, Kai Zhu, Fei Zhang, Mowafak Al-Jassim

Research output: Contribution to conferencePaperpeer-review

2 Scopus Citations

Abstract

In this work, we present a methodology to separate effects of perovskite device metastability from irreversible degradation, using stress/rest cycling under constant current bias while collecting a series of electroluminescence images and continuously monitoring voltage. We develop a simulation model and procedures for image processing to better understand the effects of ion parameters on the transient nature of voltage and evolving electroluminescence images.

Original languageAmerican English
Pages660-663
Number of pages4
DOIs
StatePublished - 20 Jun 2021
Event48th IEEE Photovoltaic Specialists Conference, PVSC 2021 - Fort Lauderdale, United States
Duration: 20 Jun 202125 Jun 2021

Conference

Conference48th IEEE Photovoltaic Specialists Conference, PVSC 2021
Country/TerritoryUnited States
CityFort Lauderdale
Period20/06/2125/06/21

Bibliographical note

See NREL/CP-5K00-80422 for preprint

NREL Publication Number

  • NREL/CP-5K00-81134

Keywords

  • electroluminescence
  • graphical models
  • image processing
  • ions
  • microscopy
  • photovoltaic systems
  • reliability

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