title: Siloxane-based hybrid semiconducting polymers prepared by fluoride-mediated suzuki polymerization.
abstract: Siloxane-containing materials are a large and important class of organic-inorganic hybrids. In this report, a practical variation of the Suzuki polymerization to generate semiconducting polymeric hybrids based on siloxane units, which proceeds under essentially nonbasic conditions, is presented. This method generates solution-processable poly(diketopyrrolopyrrole-alt-benzothiadiazole) (PDPPBT-Si) consisting of the hybrid siloxane substituents, which could not be made using conventional methods. PDPPBT-Si exhibits excellent ambipolar transistor performance with well-balanced hole and electron FET mobilities. The siloxane-containing DPP-thiophene polymer classes (PDPP3T-Si and PDPP4T-Si), synthesized by this method, exhibit high hole mobility of up to 1.29 cm(2)  V(-1)  s(-1) . This synthetic approach should provide access to a variety of novel siloxane-containing conjugated semiconductor classes by using a variety of aryldihalides and aryldiboronic acids/esters.
authors: Department of Energy Engineering, School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (South Korea).
authors: Junghoon
authors: J
authors: Lee
authors: A-Reum
authors: AR
authors: Han
authors: Sang Myeon
authors: SM
authors: Lee
authors: Dohyuk
authors: D
authors: Yoo
authors: Joon Hak
authors: JH
authors: Oh
authors: Changduk
authors: C
authors: Yang
keywords: heterocycles; materials science; microwave chemistry; polymers; silicon