Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices

Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices

Year:2015
Author(s):Elizabeth M. Tennyson, Joseph L. Garrett, Jesse A. Frantz, Jason D. Myers, Robel Y. Bekele, Jasbinder S. Sanghera, Jeremy N. Munday, and Marina S. Leite
Citation(s):Adv. Energy Mater., 5, 1501142 (2015)

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Abstract: A novel imaging platform to determine the open-circuit voltage of solar cells with nanoscale spatial resolution is presented. Here is shown how a variant of illuminated Kelvin probe force microscopy can be implemented to quantify local variations in the voltage of different solar cells. The new metrology can be applied to any optoelectronic device, and works in ambient environment.