A broadband and omnidirectional light-harvesting scheme employing nanospheres on Si solar cells

Guan Jhong Lin, Hsin Ping Wang, Der Hsien Lien, Po Han Fu, Hung Chih Chang, Cheng Han Ho, Chin An Lin, Kun Yu Lai, Jr Hau He*

*Corresponding author for this work

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

The optimized nanospheres (NSs) are simulated and then employed as light-harvesting nanostructures on Si solar cells (SCs). Uniformly distributed monolayers of NSs effectively suppress the reflection over the broadband region at the incident angles up to 85°, greatly improving the optical absorption of the SCs. The calculation results indicating significant reflection elimination and strong forward scattering agree with those obtained by experimental measurements, where the devices with NSs exhibit improved external quantum efficiencies by 13% at 800. nm and conversion efficiency by 21.6%. This simple, controllable and scalable fabrication of broadband and omnidirectional light-harvesting nanostructures is desired from the standpoint of practical applicability in SCs.

Original languageEnglish
Pages (from-to)36-43
Number of pages8
JournalNano Energy
Volume6
DOIs
StatePublished - May 2014

Keywords

  • Light harvesting
  • Nanospheres
  • Omnidirectionality
  • Scattering
  • Solar cells

Fingerprint Dive into the research topics of 'A broadband and omnidirectional light-harvesting scheme employing nanospheres on Si solar cells'. Together they form a unique fingerprint.

  • Cite this

    Lin, G. J., Wang, H. P., Lien, D. H., Fu, P. H., Chang, H. C., Ho, C. H., Lin, C. A., Lai, K. Y., & He, J. H. (2014). A broadband and omnidirectional light-harvesting scheme employing nanospheres on Si solar cells. Nano Energy, 6, 36-43. https://doi.org/10.1016/j.nanoen.2014.03.004