Special Section on Nanophotonics and Plasmonics for Solar Energy Harvesting and Conversion

Nano- and microlenses as concepts for enhanced performance of solar cells

[+] Author Affiliations
Martina Schmid

Helmholtz-Zentrum Berlin, Department of Renewable Energy, Nanooptical Concepts for PV, Hahn-Meitner-Platz 1, 14109 Berlin, Germany

Freie Universität Berlin, Department of Physics, Arnimallee 14, 14195 Berlin, Germany

Phillip Manley

Helmholtz-Zentrum Berlin, Department of Renewable Energy, Nanooptical Concepts for PV, Hahn-Meitner-Platz 1, 14109 Berlin, Germany

J. Photon. Energy. 5(1), 057003 (Nov 25, 2014). doi:10.1117/1.JPE.5.057003
History: Received July 18, 2014; Revised October 10, 2014; Accepted October 15, 2014
Text Size: A A A

Abstract.  Both metallic nanoparticles exhibiting plasmonic effects and dielectric nanoparticles coupling the light into resonant modes have shown successful applications to photovoltaics. On a larger scale, microconcentrator optics promise to enhance solar cell efficiency and to reduce material consumption. Here, we want to create a link between the concentrators on the nano- and on the microscale. From metallic nanospheres, we turn to dielectric ones and then look at increasing radii to approach the microscale. The lenses are investigated with respect to their interaction with light using three-dimensional simulations with the finite-element method. Resulting maps of local electric field distributions reveal the focusing behavior of the dielectric spheres. For larger lens sizes, ray tracing calculations, which give ray distributions in agreement with electric field intensities, can be applied. Calculations of back focal lengths in geometrical optics coincide with ray tracing results and allow insight into how the focal length can be tuned as a function of particle size, substrate refractive index, and the shape of the microlens. Despite the similarities we find for the nano- and the microlenses, integration into solar cells needs to be carefully adjusted, depending on the goals of material saving, concentration level, focal distance, and lens size.

Figures in this Article
© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Martina Schmid and Phillip Manley
"Nano- and microlenses as concepts for enhanced performance of solar cells", J. Photon. Energy. 5(1), 057003 (Nov 25, 2014). ; http://dx.doi.org/10.1117/1.JPE.5.057003


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.