Tailoring the properties of polypyrrole thin films for photovoltaic device applications

• Main Author: 劉勵竑
• Other Authors: 王本誠
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/98054243642901152239

碩士 === 國立清華大學 === 工程與系統科學系 === 101 === In this study, we fabricated all-polymer transparent electrodes by depositing polypyrole thin films on poly(ethylene terephthalate) by oxidative chemical polymerization, and performed exhaustive bending tests on the obtained all-polymer electrodes using a programmable automatic Flexible-Characteristic Inspection System (FCIS). We also prepared three polypyrrole thin film samples and placed them in three different desiccators to observe humidity effect on sheet resistance of polyprrole thin films. We observed polypyrrole doped with anthraquinone-2-sulfonic acid can better resist the humidity degradation in electrical conductivity. In order to further improve the interfacial adhesion between polypyrrole thin films prepared by in situ oxidative chemical polymerization methods on silica-based substrates, we fabricated and characterized polypyrrole thin films grown on organosilanized glass surfaces. It was found that polypyrrole thin films grown on glass surfaces modified with N-(3-trimethoxysilylpropyl)pyrrole and 3-aminopropyltriethoxysilane had improved interfacial adhesion. This phenomenon was analyzed by four-point probe measurement, field emission scanning electron microscopy, Raman spectroscopy and ultraviolet-visible-near infrared spectroscopy. Finally, we fabricated flexible OPV devices using all-polymer transparent electrodes based on polypyrrole thin films deposited on poly(ethylene terephthalate) substrates.