Thin–Film Crystalline Silicon Solar Cells. Physics and Technology

  • ID: 2183415
  • Book
  • 306 Pages
  • John Wiley and Sons Ltd
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This introduction to the physics of silicon solar cells focuses on thin cells, while reviewing and discussing the current status of the important technology. An analysis of the spectral quantum efficiency of thin solar cells is given as well as a full set of analytical models. This is the first comprehensive treatment of light trapping techniques for the enhancement of the optical absorption in thin silicon films.
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INTRODUCTION

PHYSICAL LOSS MECHANISMS

Limitations to photogeneration

Limitations to radiative recombination

Limitations by non–radiative recombination

ADVANCED QUANTUM EFFICIENCY ANALYSIS

Definition of effective diffusion lengths

Reciprocity theorem for charge carrier collection

Applications of the generalized reciprocity theorem

Limiting recombination parameters derived from LQ

Analytical quantum efficiency model for thin films

Differential and actual recombination parameters

TECHNOLOCIAL APPROACH TO THIN–FILM CELLS

High–temperature substrate (HTS) approach

Low–temperature substrate (LTS) approach

Layer–transfer process (LTP) approach

WAFFLE CELLS FROM THE POROUS SI (PSI) PROCESS

Expitaxy on porous Si

Module concepts

Optical absorption in Si waffles

Efficiency potential

SUMMARY AND CONCLUSIONS

Physical limitations to power conversion

Revealing the limitations of experimental cells

Limitations of current thin–film approaches

Overcoming technological limitations with the porous Si (PSI) process

Updating Remark

APPENDICES

Light trapping

Recombination

Quantum efficiency

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Rolf Brendel
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