TY  - JOUR
AU  - Schulte, M.
AU  - Bittkau, K.
AU  - Pieters, B. E.
AU  - Jorke, S.
AU  - Stiebig, H.
AU  - Hüpkes, J.
AU  - Rau, U.
TI  - Ray tracing for the optics at nano-textured ZnO–air and ZnO–silicon interfaces
JO  - Progress in photovoltaics
VL  - 19
SN  - 1062-7995
CY  - Chichester
PB  - Wiley
M1  - PreJuSER-16881
SP  - 724 - 732
PY  - 2011
N1  - The authors thank Thomas Beckers and Reinhard Carius for the fruitful discussions and Carsten Rockstuhl for his cooperation. The authors also acknowledge financial support by the BMU (project number 0327625).
AB  - We investigate the scattering behavior of nano-textured ZnO-Air and ZnO-Silicon interfaces for the application in thin film silicon solar cells. Contrary to the common approach, the numerical solution of the Maxwell's equations, we introduce a ray tracing approach based on geometric optics and the measured interface topography. The validity of this model is discussed by means of scanning near-field optical microscopy (SNOM) measurements and numerical solutions of the Maxwell's equations. We show, that the ray tracing model can qualitatively describe the formation of micro lenses, which are the dominant feature of the local scattering properties of the investigated interfaces. A quantitative analysis for the ZnO-Silicon interface at lambda = 488 and 780 nm shows that the ray tracing model corresponds well to the numerical solution of the Maxwell's equations, especially within the first 1.5 mu m distance from the interface. Direct correlations between the locally scattered intensity and the interface topographies are found. Copyright (C) 2011 John Wiley & Sons, Ltd.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000294777700011
DO  - DOI:10.1002/pip.1097
UR  - https://juser.fz-juelich.de/record/16881
ER  -