Silicon nanowire/poly(3,4-ethylenedioxythiophene): Poly(styrenesulfonate) heterojunction solar cells
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
7772
Date Issued
2010
Author(s)
Abstract
The characteristics of the well-aligned silicon nanowire/poly(3,4-ethylenedioxy- thiophene):poly(styrenesulfonate) (PEDOT:PSS) heterojunction solar cells are investigated. The PEDOT:PSS adheres on the n-type silicon nanowire surface to form core-sheath heterojunction structure. A novel front contact is proposed here to enhance the carrier collection efficiency for the nanostructured emitter. The cells exhibit stable rectifying diode behavior. Such structure increases the area of junctions and shortens exciton diffusion distance, and therefore greatly increases exciton dissociating probability. Compared to the devices without nanowire structure, the power conversion efficiency improves from 0.08 % to 4.99 %.
SDGs
Type
conference paper