Sustainable energy system

 

Highly flexible transparent electrode for solar cell application

 

       Solar cell

 

 

-      Objective

·      Among the organic conducting polymers, pi-conjugated poly(3,4ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) as a hole transfer layer on indium tin oxide is a key element in some of the most efficient organic photovoltaic and light emitting devices to date. PEDOT:PSS films are typically deposited by various low cost solution possible methods such as spin coating, inkjet printing, and screen printing. Among them, spray deposition method has the obvious advantage of being compatible with a high throughput roll-to-roll process. It also results in less material wastage when compared with spin coating and does not require careful optimization of the solvent formulation needed for inkjet printing

 

-      System

·      Schematic of in aerosol spray deposition and designed aerosol-jet type nozzle; SEM images of PEDOT:PSS thin films and obtained results.

 

·      SEM images of silver nanowire networks and obtained results about sheet resistance and optical transmittance.