myounghun Jeong

B.S Advanced material engineering, UNIST


Organic-Inorganic hybrid solar cell

1. Inorganic/ Organic Hybrid Tandom Solar Cell

Why PEDOT : PSS / Si nanowire hybrid solar cells?

 Inorganic/organic hybrid solar cells that combine n-type silicon nanowires (SiNWs) with poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) have great potential for replacing commercial Si solar cells.

The main advantage of SiNWs is that they show greater light absorption (minimal reflectivity) due to incident light-trapping within the NW arrays. In addition, PEDOT : PSS based hybrid solar cells have been actively studied due to high power conversion efficiency, low material cost, low temperature and simple solution based process capability.

Experimental Process


(a)-(d) The cross-sectional FE-SEM images of nanowires with different length. The nanowire length is approximately (a) 400, (b) 800, (c) 1600 and (d) 3200, respectively.

The photovoltaic characteristics of SiNWs/PEDOT:PSS hybrid solar cells prepared with different nanowire length under AM1.5 illumination condition. SEM images of the PEDOT:PSS covered SiNWs with different etching time (a) 1m (b) 2m (c) 4m (d) 8m