Akademik Veri Yönetim Sistemi
Tezin Türü: Doktora
Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Fen Edebiyat Fakültesi, Kimya Bölümü, Türkiye
Tezin Onay Tarihi: 2016
Öğrenci: ŞERİFE ÖZDEMİR HACIOĞLU
Eş Danışman: LEVENT KAMİL TOPPARE, ÖZDEMİR DOĞAN
Özet:Combining donor and acceptor moieties in the polymer backbone enhances D–A interactions and helps in developing the most efficient polymers for various applications. Besides obtaining low band gap polymers, the D–A approach is also useful in producing polymers with improved optical, mechanical and electronic properties. Changing both or either of the donor/acceptor groups is an effective method to design these alternating systems. For this purpose different acceptors units such as; benzothiodiazole, benzotriazole, quinoxaline and benzimidazole were coupled with different donor units but the desired properties could not be combined up to now. In this thesis firstly it is aimed to design a new acceptor unit which is the combination of benzotriazole and quinoxaline units (triazoloquinoxaline unit). After synthesis of this new acceptor unit, it was coupled with donor units and electrochemical and spectroelectrochemical characterization were performed. Furthermore affect of π bridge on electrochemical behaviors were also investigated via synthesizing benzotriazole and triphenylamine bearing random copolymers. Cyclic Voltammetry (CV) and UV–Vis-NIR spectrohotometer were used to investigate electrochemical behaviors of the the monomers and conducting polymers. Finally while triazoloquinoxaline derivatives were used for electrochromic device applications, triphenylamine bearing copolymers were used for organic solar cell applications as donor materials.