Photovoltaics with dielectric nanoantennas

Author

Alisafaee, H. ; Fiddy, M.A.

Author_Institution

Center for Optoelectron. & Opt. Commun., Univ. of North Carolina at Charlotte, Charlotte, NC, USA

fYear

2014

fDate

15-17 Dec. 2014

Firstpage

223

Lastpage

225

Abstract

We investigate photovoltaics incorporating standing nanowire arrays of silicon using a full wave finite element computational approach. The interaction of sunlight with bare nanowires and also with nanowires attached to dielectric nanoantennas are studied. We compute the absorption spectra in each case and compare the results to determine a possible optimal mixture of nanowire-nanoantenna elements for solar applications. We also investigate further the enhancement of absorption by exploiting field intensity patterns within the nanowire arrays. The results illustrate the benefits of using dielectric nanoantennas for applications in nanowire solar cells.

Keywords

dielectric-loaded antennas; finite element analysis; nanowires; silicon; solar cells; sunlight; Si; absorption enhancement; absorption spectra; dielectric nanoantennas; field intensity patterns; finite element computation; full wave FEM; nanowire arrays; nanowire solar cells; nanowire-nanoantenna elements; optimal mixture; photovoltaics; silicon; sunlight; Dielectrics; Indexes; Photovoltaic cells; Plasmons; Scattering; Solids; Sun; Nanoantenna; Nanowire; Photovoltaics; Scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

High-capacity Optical Networks and Emerging/Enabling Technologies (HONET), 2014 11th Annual

Conference_Location

Charlotte, NC

Print_ISBN

978-1-4799-6939-5

Type

conf

DOI

10.1109/HONET.2014.7029396

Filename

7029396