Abstract

A new efficient plasmonic structure for solar energy absorption is designed. Numerical simulations demonstrate the absorption enhancement in a symmetrical structure based on the mode coupling between the localized plasmonic mode in an Ag strip pair and the excited waveguide mode in a silicon slab. Then the method of symmetry breaking is used to excite the dark modes that can further enhance the absorption ability. The new structure is compared with a bare thin-film Si solar cell, and results show that the integrated light harvest efficiency is greatly improved for the TM polarization in such thin geometry.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Broadband absorption and efficiency enhancement of an ultra-thin silicon solar cell with a plasmonic fractal

Li-Hao Zhu, Ming-Rui Shao, Ru-Wen Peng, Ren-Hao Fan, Xian-Rong Huang, and Mu Wang
Opt. Express 21(S3) A313-A323 (2013)

Efficient optical absorption in thin-film solar cells

Lili Yang, Yimin Xuan, and Junjie Tan
Opt. Express 19(S5) A1165-A1174 (2011)

Highly absorbing solar cells—a survey of plasmonic nanostructures

Ricky B. Dunbar, Thomas Pfadler, and Lukas Schmidt-Mende
Opt. Express 20(S2) A177-A189 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription