Large-Area Material and Junction Damage in c-Si Solar Cells by Potential-Induced Degradation

Chuanxiao Xiao, Chun Sheng Jiang, Steven Harvey, Dana Kern, Xihan Chen, Helio Moutinho, Andrew Norman, Peter Hacke, Steven Johnston, Mowafak Al-Jassim, Jun Liu, Jie Pan

Research output: NRELPoster

Abstract

A new potential-induced degradation (PID) mechanism for c-Si is reported. Multiple characterization techniques in various aspects of a material's chemical, structural, electrical, and optoelectrical nature, as well as in atomic, nanometer, micrometer, millimeter, and cell and module scales, are combined. All results point consistently to a new discovery: substantial large-area deterioration of materials and junctions plays a major role.
Original languageAmerican English
StatePublished - 2019

Publication series

NamePresented at the 2019 Photovoltaic Reliability Workshop (PVRW), 26-28 February 2019, Lakewood, Colorado

NREL Publication Number

  • NREL/PO-5K00-73379

Keywords

  • c-Si Solar Cells
  • dark lock-in thermography
  • DLIT
  • EBIC
  • electron-beam induced current
  • kelvin probe force microscopy
  • KPFM
  • microwave photoconductance decay
  • photovoltaic
  • PV
  • solar
  • time-of-flight secondary-ion mass spectrometry
  • transmission electron microscopy

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