TY - JOUR
T1 - Synthesis and Photophysical Studies of Thiadiazole[3,4-c]pyridine Copolymer Based Organic Field-Effect Transistors
AU - Bathula, Chinna
AU - Lee, Sang Kyu
AU - Kalode, Pranav
AU - Badgujar, Sachin
AU - Belavagi, Ningaraddi S.
AU - Khazi, Imtiyaz Ahmed M.
AU - Kang, Youngjong
N1 - Publisher Copyright:
© 2016, Springer Science+Business Media New York.
PY - 2016/5/1
Y1 - 2016/5/1
N2 - 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.
AB - 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.
KW - Benzodithiophene
KW - Organic field-effect transistors
KW - Photophysical studies
KW - Stille reaction
KW - Thiadiazolo[3,4-c]pyridine]
UR - http://www.scopus.com/inward/record.url?scp=84964026724&partnerID=8YFLogxK
U2 - 10.1007/s10895-016-1792-5
DO - 10.1007/s10895-016-1792-5
M3 - Article
AN - SCOPUS:84964026724
SN - 1053-0509
VL - 26
SP - 1045
EP - 1052
JO - Journal of Fluorescence
JF - Journal of Fluorescence
IS - 3
ER -