Hybrid Si/PEDOT:PSS Core/Shell Nanowire Array Photoanode for Photoelectrochemical Cells

Author

Lu, Wenhui ; Zhang, Jun

Author_Institution

Dept. of Phys., Zhanjiang Normal Univ., Zhanjiang, China

fYear

2012

fDate

21-23 May 2012

Firstpage

1

Lastpage

2

Abstract

A composed of Si nanowire and conducting polymer (Poly(3,4-ethylenedioxythiophene): Poly(styrenesulfonate), PEDOT:PSS) with core/shell array structure as inorganic-organic hybrid photoanode is proposed and characterized. For the hybrid photoanode design, a PEDOT/PSS layer conformally coated on Si nanowire arrays by solution filling and drying method, which is employed to collect photogenerated holes and serve as catalytic electrode to drive electrochemical reaction. A photoelectrochemical (PEC) cells based on the hybrid photoanode is demonstrated with improved power conversion efficiency a by 1.8 times as compared to that of Si nanowire arrays photoanode. The results reveal the Si/PEDOT:PSS core/shell nanowires arrays to be an alternative hybrid system for solar energy conversion.

Keywords

conducting polymers; electrochemical electrodes; elemental semiconductors; nanowires; organic semiconductors; organic-inorganic hybrid materials; photoelectrochemical cells; silicon; solar cells; PEDOT-PSS layer; Si; Si nanowire arrays; alternative hybrid system; catalytic electrode; conducting polymer; core-shell array structure; drying method; electrochemical reaction; hybrid Si-PEDOT:PSS core-shell nanowire array photoanode; hybrid photoanode design; inorganic-organic hybrid photoanode; photoelectrochemical cells; photogenerated holes; poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate); power conversion efficiency; solar energy conversion; solution filling; Arrays; Electrodes; Nanoscale devices; Photovoltaic cells; Power conversion; Silicon; Solar energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2012 Symposium on

Conference_Location

Shanghai

ISSN

2156-8464

Print_ISBN

978-1-4577-0909-8

Type

conf

DOI

10.1109/SOPO.2012.6271127

Filename

6271127