Bandtail Limits to Solar Conversion Efficiencies in Amorphous Silicon Solar Cells

K. Zhu, J. Yang, W. Wang, Eric Allan Schiff, J. Liang, S. Guha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

We describe a model for a-Si:H based pin solar cells derived primarily from valence bandtail properties. We show how hole drift-mobility measurements and measurements of the temperature-dependence of the open-circuit voltage V OC can be used to estimate the parameters, and we present V OC(T) measurements. We compared the power density under solar illumination calculated with this model with published results for as-deposited a-Si:H solar cells. The agreement is within 4% for a range of thicknesses, suggesting that the power from as-deposited cells is close to the bandtail limit.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsJ.R. Abelson, G. Ganguly, H. Matsumura, J. Robertson, E.A. Schiff
Pages297-302
Number of pages6
Volume762
StatePublished - 2003
EventMaterials Research Proceedings: Amorphous and Nanocrystalline Silicon-Based Films - 2003 - San Francisco, CA, United States
Duration: Apr 22 2003Apr 25 2003

Other

OtherMaterials Research Proceedings: Amorphous and Nanocrystalline Silicon-Based Films - 2003
CountryUnited States
CitySan Francisco, CA
Period4/22/034/25/03

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Zhu, K., Yang, J., Wang, W., Schiff, E. A., Liang, J., & Guha, S. (2003). Bandtail Limits to Solar Conversion Efficiencies in Amorphous Silicon Solar Cells. In J. R. Abelson, G. Ganguly, H. Matsumura, J. Robertson, & E. A. Schiff (Eds.), Materials Research Society Symposium - Proceedings (Vol. 762, pp. 297-302)