Polycrystalline CdTe Solar Cells on Buffered Commercial TCO-Coated Glass with Efficiencies Above 15%

R. Banai, C. Blissett, C. Buurma, E. Colegrove, P. Bechmann, J. Ellsworth, M. Morley, S. Barnes, C. Lennon, C. Gilmore, R. Dhere, J. Bergeson, M. Scott, T. Gessert

Research output: Contribution to conferencePaperpeer-review

7 Scopus Citations

Abstract

EPIR Technologies, Inc. reports the production of thin film polycrystalline CdTe devices with National Renewable Energy Laboratory (NREL)-verified efficiencies above 15%. While previous reporting of high efficiency poly-CdTe solar cells utilized high-temperature technical glass, EPIR's cells were produced on commercially-available conductive glass. The devices exhibit fill factors up to 77% and short-circuit current densities around 24 mA/cm 2. EPIR developed a robust process for producing thin film CdTe solar cells through implementation of a high resistivity SnO 2 buffer layer and optimization of the CdS window layer thickness. The effects of the high resistivity buffer layer on device performance were investigated, demonstrating improved overall performance and yield. To our knowledge, these are among the highest efficiencies yet reported and NREL-verified for a thin film CdTe solar cell fabricated using commercial conductive glass.

Original languageAmerican English
Pages3410-3414
Number of pages5
DOIs
StatePublished - 2011
Externally publishedYes
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: 19 Jun 201124 Jun 2011

Conference

Conference37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Country/TerritoryUnited States
CitySeattle, WA
Period19/06/1124/06/11

NREL Publication Number

  • NREL/CP-5200-55696

Fingerprint

Dive into the research topics of 'Polycrystalline CdTe Solar Cells on Buffered Commercial TCO-Coated Glass with Efficiencies Above 15%'. Together they form a unique fingerprint.

Cite this