title: Synthesis and Photophysical Studies of Thiadiazole[3,4-c]pyridine Copolymer Based Organic Field-Effect Transistors.
abstract: A novel thiadiazolo[3,4-c]pyridine] based donor-acceptor (D-A) copolymer, poly[4,8-bis(triisopropylsilylethynyl)benzo[1,2-b:4,5-b']dithiophene-2,6-diyl-alt-[4,7-bis(4-(2-ethylhexyl)thiophen-2-yl)-[1,2,5]thiadiazolo[3,4-c]pyridine] (PTBDTPT), containing triisopropylsilylethynyl(TIPS)benzo[1,2-b:4,5-b']dithiophene as a donor is synthesized by Stille polymerization reaction. All the important photo physical prerequisites for organic field-effect transistor (OFET) application such as strong and broad optical absorption, thermal stability, and compatible HOMO-LUMO levels can be accomplished and combined on one macromolecule. Optical band gap of the polymer was found to be 1.61 eV as calculated from its film onset absorption edge. The hole mobility of bottom gate OFET using the synthesized polymer as an active channel is found to be 1.92 X 10(-2) cm V(-1) s(-1) with the On/Off ratio of 25. The photophysical study suggests that PTBDTPT is promising candidate for future large area organic electronic applications.
authors.affiliation: Department of Chemistry, Research Institute for Natural Sciences, Hanyang University, Seoul, 133-791, Republic of Korea. cdbathula9@gmail.com.|Institute of Nanoscience and Technology, Hanyang University, Seoul, 133-791, Republic of Korea. cdbathula9@gmail.com.
authors.forename: Chinna
authors.initials: C
authors.lastname: Bathula
authors.affiliation: Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 305-600, Republic of Korea.
authors.forename: Sang Kyu
authors.initials: SK
authors.lastname: Lee
authors.affiliation: Department of Physics and Energy Systems Research, Ajou University, Yeongtong-gu, Suwon, 443-749, Republic of Korea.
authors.forename: Pranav
authors.initials: P
authors.lastname: Kalode
authors.affiliation: Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 305-600, Republic of Korea.
authors.forename: Sachin
authors.initials: S
authors.lastname: Badgujar
authors.affiliation: CPEPA, Department of Chemistry, Karnatak University, Dharwad, 580 003, India.
authors.forename: Ningaraddi S
authors.initials: NS
authors.lastname: Belavagi
authors.affiliation: CPEPA, Department of Chemistry, Karnatak University, Dharwad, 580 003, India.
authors.forename: Imtiyaz Ahmed M
authors.initials: IA
authors.lastname: Khazi
authors.affiliation: Department of Chemistry, Research Institute for Natural Sciences, Hanyang University, Seoul, 133-791, Republic of Korea.|Institute of Nanoscience and Technology, Hanyang University, Seoul, 133-791, Republic of Korea.
authors.forename: Youngjong
authors.initials: Y
authors.lastname: Kang
keywords: Benzodithiophene; Organic field-effect transistors; Photophysical studies; Stille reaction; Thiadiazolo[3,4-c]pyridine]