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Polycrystalline Silicon Thin-film Solar cells with Plasmonic-enhanced Light-trapping
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Multidirectional Polymer Waveguide Lattices for Enhanced Ultrawide-Angle Light Capture in Silicon Solar Cells.

Nannan Ding1, Ian D Hosein1

  • 1Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States.

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|August 29, 2022
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Summary

Researchers developed a novel polymer thin-film with intersecting optical waveguide lattices for enhanced silicon solar cell performance. This structure improves wide-angle light collection and energy conversion efficiency.

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Area of Science:

  • Materials Science
  • Optoelectronics
  • Renewable Energy

Background:

  • Silicon solar cells face limitations in wide-angle light absorption.
  • Efficient light management is crucial for improving solar cell performance.

Purpose of the Study:

  • To synthesize and characterize a polymer thin-film with intersecting optical waveguide lattices.
  • To evaluate its performance in wide-angle light collection and energy conversion for silicon solar cells.

Main Methods:

  • Concurrent irradiation of photoreactive polymer blends using intersecting microscale optical beams.
  • Optical beam-induced photopolymerization and photopolymerization-induced phase separation to create core-cladding waveguide architectures.
  • Characterization of optical waveguide properties and performance evaluation in silicon solar cells.

Main Results:

  • Successfully synthesized well-organized intersecting optical waveguide lattices.
  • Demonstrated efficient light collection and transmission along waveguide axes, overcoming natural refraction.
  • Achieved wide-angle light acceptance (±70°) and improved wide-angle conversion efficiency and current density in silicon solar cells compared to single waveguide arrays.

Conclusions:

  • The novel polymer thin-film structure with intersecting waveguide lattices significantly enhances silicon solar cell performance.
  • This technology enables ultrawide-angle solar energy conversion, promising increased solar cell efficiency.
  • The developed material offers a promising approach for advanced solar energy harvesting applications.