Modeling of Advanced Light Trapping Approaches in Thin-Film Silicon Solar Cells

Zeman, M.; Isabella, Olindo; Jager, K.; Babal, P.; Solntsev, S.; Santbergen, R

Modeling of Advanced Light Trapping Approaches in Thin-Film Silicon Solar Cells

Conference paper (2011)

Authors

M. Zeman Photovoltaic Materials and Devices -

Olindo Isabella Photovoltaic Materials and Devices -

K. Jager Photovoltaic Materials and Devices -

P. Babal Photovoltaic Materials and Devices -

S. Solntsev Photovoltaic Materials and Devices -

R Santbergen Photovoltaic Materials and Devices -

Research Group

Photovoltaic Materials and Devices () (TU Delft)

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Published Date

2011

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

Photovoltaic Materials and Devices

Abstract

Due to the increasing complexity of thin-film silicon solar cells, the role of computer modeling for analyzing and designing these devices becomes increasingly important. The ASA program was used to study two of these advanced devices. The simulations of an amorphous silicon solar cell with silver nanoparticles embedded in a zinc oxide back reflector demonstrated the negative effect of the parasitic absorption in the particles. When using optical properties of perfectly spherical particles a modest enhancement in the external quantum efficiency was found. The simulations of a tandem micromorph solar cell, in which a zinc oxide based photonic crystal-like multilayer was incorporated as an intermediate reflector (IR), demonstrated that the IR resulted in an enhanced photocurrent in the top cell and could be used to optimize the current matching of the top and bottom cell.