Double Deposition Technique of Thin Film Organic Semiconductor: Effect on Optical and Morphology Properties

• Main Authors: Wahab, Nur Zuraihan Abd, Mohtar, Mohd Nazim, Ismail, Ahmad Ghadafi, Sidek, Roslina Mohd, Shafie, Suhaidi, Ramli, Muhammad Mahyiddin
• Format: Conference Proceeding
• Language: English
• Subjects: double deposition; floating films; Morphology; Optical device fabrication; Optical films; Organic thin film transistors; Pentacene; Rough surfaces; spin coating; Surface morphology; Surface roughness; thin film
• ISSN: 2159-2160
• DOI: 10.1109/PrimeAsia51450.2021.9701467

Blending of organic semiconducting materials between small molecule and polymer become feasible and practical technique to increase the charge transport of thin films for organic electronic application. Thus, blending of conducting polymer with small molecule semiconductors has been extensively studied in recent years however, results of blending between these two materials have tendency to interrupt the electronic structure of each material and affect the charge transport within molecules. Herein, we investigate the optical and morphological properties of double fabrication of P3HT and TIPS Pentacene thin films deposited on glass substrate by floating transfer method and spin coating technique. Optical properties show that the highest absorption in the visible region on the spectrum for double deposition P3HT: TIPS Pentacene thin films. The surface morphology shows that the roughness increases for double fabrication of P3HT: TIPS Pentacene thin films compared to neat P3HT thin films. This work shows the effect of double deposition on the optical and morphology of active layer of organic thin films.