Flexible solar cells in milliseconds: Pulse thermal processing of CdTe devices

  • S. L. Murray
  • , A. R. Klein
  • , C. S. Murray
  • , K. A. Schroder
  • , I. M. Rawson
  • , T. Ju
  • , B. M. Evans
  • , J. A. Angelini
  • , D. C. Harper
  • , D. Tillett
  • , C. E. Duty
  • , R. D. Ott
  • , C. A. Blue
  • , J. D. Rivard
  • , T. Gessert
  • , R. Noufi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Materials for a CdTe solar cell (ITO/CdS/CdTe/Cu/Pt) were sputtered at room temperature onto kapton, then transformed from resistive layers into a working solar cell by Pulse Thermal Processing (PTP), a novel radiant heat treatment developed at Oak Ridge National Laboratory (ORNL). Unlike conventional device fabrication approaches, the solar cell was a complete device, front-to-back contact, prior to heat treatment. In this proof-of-concept approach, the I-V curves for the as-deposited sputtered materials demonstrate little measurable photovoltaic (PV) activity, but achieved a V oc of 634 mV after PTP. Based on process simulations, it's estimated that the material/device transformation occurred in under 30 ms, while maintaining the kapton substate at temperatures below 250°C.

Original languageEnglish
Title of host publicationProgram - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Pages3327-3329
Number of pages3
DOIs
StatePublished - 2011
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: Jun 19 2011Jun 24 2011

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Conference

Conference37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Country/TerritoryUnited States
CitySeattle, WA
Period06/19/1106/24/11

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