Title :
Inkjet printing PEDOT:PSS using desktop inkjet printer
Author :
Srichan, Chavis ; Saikrajang, Thitirat ; Lomas, Tanom ; Jomphoak, Apichai ; Maturos, Thitima ; Phokaratkul, Disayut ; Kerdcharoen, Teerakiat ; Tuantranont, Adisom
Author_Institution :
Nanoelectron. & MEMS Lab., Nat. Electron. & Comput. Technol. Center (NECTEC), Pathumthani, Thailand
Abstract :
PEDOT:PSS has been used recently into many organic-based devices in order to help charge transfer and improve efficiency of the devices. PEDOT:PSS exhibit various interesting properties. It posses relatively good electrochemical, ambient, and thermal stability of its electrical properties as compared with the other polythiophenes. One aim of manufacturing organic-based device is to lowering the fabrication cost. Due to PEDOT:PSS´s stability , it is possible to pattern PEDOT:PSS using inkjet printing. We found that using the CANON IP4500 desktop inkjet printer, the structure of 150 micron could be patterned on PET substrate. By modifying the surface properties of the substrate , the structure of 20 micron could be achieved. The conductivity of inkjet printed PEDOT:PSS could be further enhanced by annealing at 80degC. The conductivity could be 3 times improved. The morphology of the annealed PEDOT:PSS was further investigated using atomic force microscopy(AFM) and the cause for conductivity enhancement could be explained via localization length extension in variable range hopping theory.
Keywords :
annealing; electrical conductivity; ink jet printers; ink jet printing; surface morphology; CANON IP4500; PEDOT:PSS; atomic force microscopy; conductivity enhancement; desktop inkjet printer; inkjet printing; localization length extension; organic-based device; surface properties; temperature 80 C; variable range hopping theory; Annealing; Atomic force microscopy; Charge transfer; Conductivity; Costs; Fabrication; Manufacturing; Printers; Printing; Thermal stability;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2009. ECTI-CON 2009. 6th International Conference on
Conference_Location :
Pattaya, Chonburi
Print_ISBN :
978-1-4244-3387-2
Electronic_ISBN :
978-1-4244-3388-9
DOI :
10.1109/ECTICON.2009.5137049