Preparation of Indium Tin Oxide/Quaterthiophene Thin Film for Solution Processed Organic Device

Abstract:

Organic devices are advantageous in term of high carrier mobility, lightweight and flexibility. The solution processed method offers economic and efficient device fabrication in small laboratory scale. The α-quaterthiophene (α-4T) is an oligomer and a p-type organic semiconductor. In this study, pure α-4T and polylactide acid (PLA)/α-4T films were spin-coated on glass and indium tin oxide (ITO) substrates at low spin frequency. The hydrated films were left to dry at room temperature and later in vacuum oven. The α-4T microstructures changed when blended with the polymer. The roughness of the 180 nm ITO film was found to be 1 - 30 nm and the organic layer formed uneven thickness (max ~ 300 nm) thicker toward the edge. The preparation of spin coated organic thin film is the first step towards realizing solution processed organic device in electronic packaging.

• Periodical: Solid State Phenomena (Volume 268)
• Pages: 269-273
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.268.269
• Online since: October 2017
• Authors: Siti Zulaikha Ngah Demon*, Nursaadah Ahmad Poad, Noor Fadhilah Rahmat, Noriah Bidin
• Keywords: Indium Tin Oxide, Organic Semiconductor, Spin Coating, Structural Property, Thin Film

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