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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