1173788-58-3Relevant academic research and scientific papers
Synthesis and characterization of acceptor-donor-acceptor-based low band gap small molecules containing benzoselenadiazole
Shaik, Baji,Han, Jin-Hee,Song, Dong Jin,Kang, Hun-Min,Lee, Sang-Gyeong
, p. 553 - 558 (2016/07/06)
Acceptor-donor-acceptor-type compounds 5′,5″-(benzo[c][1,2,5]selenadiazole-4,7-diyl)bis(3′-dodecyl-2,2′-bithiophene-5-carbonitrile) (9) and 4,4′-(5,5′-(benzo[c][1,2,5]selenadiazole-4,7-diyl)bis(3-dodecylthiophene-5,2-diyl))dibenzonitrile (10) were designed and synthesized. These compounds differ in terminal positions, compound 9 with a thiophene-containing nitrile group and compound 10 with a phenyl-containing nitrile group. Both compounds have shown good thermal stability and low band gap. The band gaps of compounds 9 and 10 were 1.74 and 1.83 eV, respectively. These results indicate that they are promising materials for use in optoelectronics.
Synthesis of donor-acceptor copolymer using benzoselenadiazole as acceptor for OTFT
Shaik, Baji,Han, Jin-Hee,Song, Dong Jin,Kang, Hun-Min,Kim, Ye Beyeol,Park, Chan Eon,Lee, Sang-Gyeong
, p. 4070 - 4076 (2016/01/20)
Donor-acceptor-based poly(E)-4-(3,4′-didodecyl-5′-(2-(3-dodecylthiophen-2-yl)vinyl)-2,2′-bithiophen-5-yl)-7-(4-dodecylthiophen-2-yl)benzo[c][1,2,5]selenadiazole (11) has been synthesized by a Stille coupling reaction. This polymer has a low energy band gap between the HOMO and LUMO energy levels of 1.75 eV. The polymer exhibited good thermal stability. An OTFT prepared using this polymer displayed high hole mobility of 0.097 cm2 V-1 s-1 at 200°C, a high on/off ratio of 7.8 × 104, and a low threshold voltage of 11.2 V. When compared with as-cast films, annealed films exhibited higher mobility, which was attributed to an increase in crystallinity with an increase in the annealing temperature.
