Contactless Electroluminescence Imaging for Cell and Module Characterization

Research output: Contribution to conferencePaper

23 Scopus Citations

Abstract

Module performance can be characterized by imaging using baseline and periodic images to track defects and degradation. Both thermal images, which can be acquired during sunny operating conditions, and photoluminescence images, which could be acquired at night, can be collected without electrical connection. Electroluminescence (EL) images, which are useful to detect many types of defects such as cracks, interconnect and solder faults, and resistances, have typically required electrical connection to drive current in the cells and modules. Here, a contactless EL imaging technique is proposed, which provides an EL image without the need for electrical connection to drive current through the module. Such EL imaging has the capability to be collected at night without disruption to daytime power generation.
Original languageAmerican English
Number of pages6
DOIs
StatePublished - 2015
Event2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) - New Orleans, Louisiana
Duration: 14 Jun 201519 Jun 2015

Conference

Conference2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)
CityNew Orleans, Louisiana
Period14/06/1519/06/15

NREL Publication Number

  • NREL/CP-5J00-63621

Keywords

  • electroluminescence
  • imaging
  • photovoltaic cells
  • photovoltaic systems
  • reliability
  • silicon
  • solar energy
  • solar power generation

Fingerprint

Dive into the research topics of 'Contactless Electroluminescence Imaging for Cell and Module Characterization'. Together they form a unique fingerprint.

Cite this