Light scattering at nano-textured surfaces in thin film silicon solar cells

State-of-the-art solar cells based on thin film silicon make use of random textures for absorption enhancement; in the past, the development of these textures was carried out empirically, and in most applications this is still the case. Attempts to understand light scattering at the internal interfaces rely on quantities like haze and angle resolved scattering that are only measurable in air and need to be extrapolated, normally by means of scalar scattering theory. In this context it is unfortunate that the description of scattering into air requires modifications with empiric parameters whose scaling is unknown. We present an alternate approach for predicting angular properties and intensities of scattered light which is based only on measurable quantities like the surface morphology and the refractive index dispersion, no adjustable parameters are needed.


Published in:
35Th Ieee Photovoltaic Specialists Conference, -
Presented at:
35th Photovoltaic Specialsts Conference, Honolulu, Hawai'i, USA, June 20-25, 2010
Year:
2010
Publisher:
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa
ISBN:
978-1-4244-5891-2
Keywords:
Laboratories:




 Record created 2010-10-13, last modified 2018-03-17

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