Title :
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
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;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2012 Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0909-8
DOI :
10.1109/SOPO.2012.6271127
