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Motivation


The photovoltaic industry faces the new challenge

of departing from its niche existence in the German and European energy market to provide a significant part of future energy demands.
Currently, research is concentrated on innovative fabrication technologies and optimized processes to achieve the high national and international goals.

A promising approach for rapid and simple fabrication

of solar cells is the so­ called semiconductor - insulator - semicon­ductor (SIS) system. Here, a thin insulator is coated on doped silicon, followed by the deposition of a transparent conductive oxide (TCO), e.g. indium tin oxide (ITO) or aluminum doped
zinc oxide (AZO). With the appropriate choice of the silicon doping and optimized process conditions, the different work functions of the materials lead to the inversion and the formation of a p­n junction within the subsurface of the silicon surface. Due to the low absorption in the visible and near infrared spectral range and the high conductivity of the TCOs, these act as a transparent window for the incident solar irradi­ance and can be used as front electrode at the same time.

Startseite UNI Jena

funded by


BMBF
Unternehmen-Region
TMBWK-Logo

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