Using self-assembled nanoparticles to fabricate and optimize sub-wavelength textured structures in solar cells

D. H. Wan; H. L. Chen; C. C. Yu; Y. C. Lee

doi:10.1117/12.781279

5 May 2008 Using self-assembled nanoparticles to fabricate and optimize sub-wavelength textured structures in solar cells

D. H. Wan, H. L. Chen, C. C. Yu, Y. C. Lee

Author Affiliations +

Proceedings Volume 7002, Photonics for Solar Energy Systems II; 70020X (2008) https://doi.org/10.1117/12.781279
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

In this study, we demonstrated the textured structure on silicon surface by metal assisted etching method, using Au nanoparticles as catalysts in HF and H₂O₂ solution. The size and density of the nanoparticles could be tuned easily. The porous layers filled with cylinder- or cone-shaped were uniformly formed by immersing the gold deposited silicon wafers in a mixed solution containing HF and H₂O₂ under different etching conditions. The optimized textured structure was close-packed pyramids-like surface in subwavelength scale and showed the lowest reflectance less than 0.5% over whole visible and near IR wavelengths. The large reduction of reflectance was attributed from the gradient refractive index of the silicon surface with the depth along the light propagation.

Citation Download Citation

D. H. Wan, H. L. Chen, C. C. Yu, and Y. C. Lee "Using self-assembled nanoparticles to fabricate and optimize sub-wavelength textured structures in solar cells", Proc. SPIE 7002, Photonics for Solar Energy Systems II, 70020X (5 May 2008); https://doi.org/10.1117/12.781279

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available