The Direct Correlation of CdTe Solar Cell Stabiity with Mobile Ion Charge Generation During Accelerated Lifetime Testing

D. S. Albin; R. G. Dhere; S. C. Glynn; W. K. Metzger

doi:10.1109/PVSC.2009.5411121

The Direct Correlation of CdTe Solar Cell Stabiity with Mobile Ion Charge Generation During Accelerated Lifetime Testing

D. S. Albin, R. G. Dhere, S. C. Glynn, W. K. Metzger

Materials Science

National Renewable Energy Laboratory

Research output: Contribution to conference › Paper › peer-review

7 Scopus Citations

Abstract

CdS/CdTe cells deposited on cadmium and zinc stannate (CTO/ZTO) transparent conducting oxide (TCO) substrates show greater degradation than similar devices fabricated on SnO₂-based substrates. This has been confirmed in two separate studies in which J-V changes during stress suggest different degradation mechanisms believed to be due to differences in processing. In addition, cells made using the CTO/ZTO substrates exhibit greater variations in initial performance relative to SnO₂-based substrates. A capacitance-voltage (CV) method using different initial bias conditions is used to quantify mobile ion concentration. CV hysteresis was observed in Cu-containing cells and was absent in cells that were not intentionally doped with Cu. With increasing stress, hysteresis increased. A faster rate of hysteresis gain was observed in CTO/ZTO cells relative to SnO₂ cells. A model is introduced for explaining the origin of the hysteresis and why it increases with increasing stress.

Original language	American English
Pages	1903-1908
Number of pages	6
DOIs	https://doi.org/10.1109/PVSC.2009.5411121 https://doi.org/10.1109/PVSC.2009.5411121
State	Published - 2009
Event	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States Duration: 7 Jun 2009 → 12 Jun 2009

Conference

Conference	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Country/Territory	United States
City	Philadelphia, PA
Period	7/06/09 → 12/06/09

Bibliographical note

For preprint version, see NREL/CP-520-46055

NREL Publication Number

NREL/CP-520-47839

Keywords

conducting oxide
hysteresis
transparent

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Albin, D. S., Dhere, R. G., Glynn, S. C., & Metzger, W. K. (2009). The Direct Correlation of CdTe Solar Cell Stabiity with Mobile Ion Charge Generation During Accelerated Lifetime Testing. 1903-1908. Paper presented at 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States. https://doi.org/10.1109/PVSC.2009.5411121, https://doi.org/10.1109/PVSC.2009.5411121

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abstract = "CdS/CdTe cells deposited on cadmium and zinc stannate (CTO/ZTO) transparent conducting oxide (TCO) substrates show greater degradation than similar devices fabricated on SnO2-based substrates. This has been confirmed in two separate studies in which J-V changes during stress suggest different degradation mechanisms believed to be due to differences in processing. In addition, cells made using the CTO/ZTO substrates exhibit greater variations in initial performance relative to SnO2-based substrates. A capacitance-voltage (CV) method using different initial bias conditions is used to quantify mobile ion concentration. CV hysteresis was observed in Cu-containing cells and was absent in cells that were not intentionally doped with Cu. With increasing stress, hysteresis increased. A faster rate of hysteresis gain was observed in CTO/ZTO cells relative to SnO2 cells. A model is introduced for explaining the origin of the hysteresis and why it increases with increasing stress.",

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note = "For preprint version, see NREL/CP-520-46055; 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 ; Conference date: 07-06-2009 Through 12-06-2009",

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doi = "10.1109/PVSC.2009.5411121",

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Albin, DS, Dhere, RG, Glynn, SC & Metzger, WK 2009, 'The Direct Correlation of CdTe Solar Cell Stabiity with Mobile Ion Charge Generation During Accelerated Lifetime Testing', Paper presented at 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States, 7/06/09 - 12/06/09 pp. 1903-1908. https://doi.org/10.1109/PVSC.2009.5411121, https://doi.org/10.1109/PVSC.2009.5411121

The Direct Correlation of CdTe Solar Cell Stabiity with Mobile Ion Charge Generation During Accelerated Lifetime Testing. / Albin, D. S.; Dhere, R. G.; Glynn, S. C. et al.
2009. 1903-1908 Paper presented at 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States.

Research output: Contribution to conference › Paper › peer-review

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AB - CdS/CdTe cells deposited on cadmium and zinc stannate (CTO/ZTO) transparent conducting oxide (TCO) substrates show greater degradation than similar devices fabricated on SnO2-based substrates. This has been confirmed in two separate studies in which J-V changes during stress suggest different degradation mechanisms believed to be due to differences in processing. In addition, cells made using the CTO/ZTO substrates exhibit greater variations in initial performance relative to SnO2-based substrates. A capacitance-voltage (CV) method using different initial bias conditions is used to quantify mobile ion concentration. CV hysteresis was observed in Cu-containing cells and was absent in cells that were not intentionally doped with Cu. With increasing stress, hysteresis increased. A faster rate of hysteresis gain was observed in CTO/ZTO cells relative to SnO2 cells. A model is introduced for explaining the origin of the hysteresis and why it increases with increasing stress.

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The Direct Correlation of CdTe Solar Cell Stabiity with Mobile Ion Charge Generation During Accelerated Lifetime Testing

Abstract

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Keywords

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