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Spie Press Book

Experimental and Simulation Tools for Thin-Film Solar Cells
Author(s): Carmen M. Ruiz; David Duché; Judikaël Le Rouzo
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Book Description

This Spotlight describes the methods used for the optical characterization and design of thin-film solar cells. A description of the cells under study (CdTe, CIGS, CZTS, Perovskite, and organic) is given, followed by coupling experimental and simulation studies in order to improve solar cell performances. A detailed discussion on specific optical tools (ellipsometry, photoluminescence and photoreflectance) is included, and a link between materials and measurements is made by studying the relevant physical principles. Finally, a numerical model is provided that can be used to design the structure of a thin-film solar cell.

Book Details

Date Published: 2 August 2016
Pages: 49
ISBN: 9781510603677
Volume: SL17

Table of Contents
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1 Introduction

2 Materials and Solar Cells
2.1 Generations of solar cells
2.2 Inorganic thin-film solar cells
2.3 Organic solar cells
2.4 Perovskite solar cells

3 Optical Experimental Techniques for Accurate Measurements
3.1 Set of measurements for thin-film solar cells
     3.1.1 Current/voltage curve analysis
     3.1.2 Quantum efficiency
3.2 Ellipsometry
     3.2.1 Optical modeling
     3.2.2 Dispersion model
3.3 Photoluminescence
     3.3.1 Excitonic transitions
     3.3.2 Free-bound transitions
     3.3.3 Donor/acceptor pairs
     3.3.4 Band/band transitions
3.4 Photoreflectance
     3.4.1 Photoreflectance on a CuInS2 solar cell system
     3.4.2 Combination of photoreflectance and photoluminescence for studying the bandgap of perovskite layers

4 Simulation Tools for Predicting Solar Cell Performances
4.1 Optical modeling
     4.1.1 Photonic crystals to trap the light in the active layer of organic solar cells
     4.1.2 Color tuned high-efficient organic solar cells
4.2 Optoelectronic simulation
     4.2.1 Impact of the band alignment in a heterostructure: the CIG(SSe) system
     4.2.2 Drift diffusion models for organic solar cells

5 Conclusion

References

Preface

This Spotlight describes the methods used for the optical characterization and design of thin-film solar cells. The cells under study include CdTe, CIGS, CZTS, perovskite, and organic solar cells. A description of these cells and the coupling of experimental and simulation studies is provided to improve the performances of thin-film solar cells. A detailed discussion of specific optical tools, such as ellipsometry, photoluminescence, and photoreflectance, is presented. The link between materials and measurements is made through the study of the physical principles involved in the functioning of these cells. Finally, the book details the numerical model that can be used to design the structure of a thin-film solar cell - a model in which the material properties have been extracted from the previous measurements - thus completing the design-characterization cycle.

Carmen M. Ruiz
David Duch�
Juidka�l Le Rouzo
June 2016


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