Local Built-In Potential on Grain Boundary of Cu(In,Ga)Se2 Thin Films

C. S. Jiang; R. Noufi; J. A. AbuShama; K. Ramanathan; H. R. Moutinho; J. Pankow; M. M. Al-Jassim

doi:10.1063/1.1737796

Local Built-In Potential on Grain Boundary of Cu(In,Ga)Se2 Thin Films

C. S. Jiang, R. Noufi, J. A. AbuShama, K. Ramanathan, H. R. Moutinho, J. Pankow, M. M. Al-Jassim

Materials Science

National Renewable Energy Laboratory

Research output: Contribution to journal › Article › peer-review

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Abstract

The local built-in potential on grain boundaries of Cu(In,Ga)Se ₂ (CIGS) films were measured using scanning Kelvin probe microscopy (SKPM). The local built-in potential that arose from the positively charged GB represented an energetic barrier, which attracted electrons and repelled holes from the grain boundary. This was found to benefit the three-dimensional collection of minority carriers. The GB effect on the photovoltaic performance was also studied.

Original language	American English
Pages (from-to)	3477-3479
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	18
DOIs	https://doi.org/10.1063/1.1737796 https://doi.org/10.1063/1.1737796
State	Published - 3 May 2004

NREL Publication Number

NREL/JA-520-35437

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abstract = "The local built-in potential on grain boundaries of Cu(In,Ga)Se 2 (CIGS) films were measured using scanning Kelvin probe microscopy (SKPM). The local built-in potential that arose from the positively charged GB represented an energetic barrier, which attracted electrons and repelled holes from the grain boundary. This was found to benefit the three-dimensional collection of minority carriers. The GB effect on the photovoltaic performance was also studied.",

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AU - Moutinho, H. R.

AU - Pankow, J.

AU - Al-Jassim, M. M.

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AB - The local built-in potential on grain boundaries of Cu(In,Ga)Se 2 (CIGS) films were measured using scanning Kelvin probe microscopy (SKPM). The local built-in potential that arose from the positively charged GB represented an energetic barrier, which attracted electrons and repelled holes from the grain boundary. This was found to benefit the three-dimensional collection of minority carriers. The GB effect on the photovoltaic performance was also studied.

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Local Built-In Potential on Grain Boundary of Cu(In,Ga)Se2 Thin Films

Abstract

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