2021
DOI: 10.3390/coatings11101222
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Development of Dithieno[3,2-b:2′,3′-d]thiophene (DTT) Derivatives as Solution-Processable Small Molecular Semiconductors for Organic Thin Film Transistors

Abstract: Novel solution-processable dithieno[3,2-d:2′,3′-d]thiophene (DTT) derivatives with alkylated thiophene or alkyl chain substituents, 2,6-bis(5-octylthiophen-2-yl)dithieno[3,2-b:2′,3′-d]thiophene (compound 1), 2,6-bis(5-(2-ethylhexyl)thiophen-2-yl)dithieno[3,2-b:2′,3′-d]thiophene (compound 2), and 2,6-dioctyldithieno[3,2-b:2′,3′-d]thiophene (compound 3), have been synthesized and employed as small molecular organic semiconductors for organic field-effect transistors (OFETs). All compounds exhibited good thermal … Show more

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Cited by 7 publications
(5 citation statements)
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“…On the other hand, in a separate report, the same group has also revealed the synthesis of symmetrically substituted DTT-based organic semiconductors 110 & 113 for thin-film transistors ( Scheme 17 ). 101 It was observed by the authors that all the molecules displayed good thermal stability over 290 °C, different side chains of DTT-based systems provided the different melting temperatures. The energy levels of the molecular orbitals were not only investigated by means of theoretical studies but also experimentally as well, and they found almost same trend.…”
Section: Dtt-based Molecules and Their Potential Applicationsmentioning
confidence: 99%
“…On the other hand, in a separate report, the same group has also revealed the synthesis of symmetrically substituted DTT-based organic semiconductors 110 & 113 for thin-film transistors ( Scheme 17 ). 101 It was observed by the authors that all the molecules displayed good thermal stability over 290 °C, different side chains of DTT-based systems provided the different melting temperatures. The energy levels of the molecular orbitals were not only investigated by means of theoretical studies but also experimentally as well, and they found almost same trend.…”
Section: Dtt-based Molecules and Their Potential Applicationsmentioning
confidence: 99%
“…Herein, we report the synthesis of a set of new triindole derivatives functionalized with thiophene moieties and their integration in OTFT devices. The inclusion of sulfurcontaining heterocycles, such as thiophene, represents a well-known strategy in the search for novel materials within organic electronics [35][36][37][38][39][40]. The advantages of attaching sulfurated moieties, such as 5-methylthien-2-yl and benzothien-2-yl, to the triindole core, instead of aromatic hydrocarbons, have been already demonstrated in our research group [33].…”
Section: Introductionmentioning
confidence: 96%
“…Even though many SMDs have been studied theoretically for applying BHJ OSCs, there has been no report regarding IIG-containing SMDs. In this context, we have selected several electron-rich groups including benzo­[1,2- b :4,5- b ′]­dithiophene (BDT), 4,8-dimethoxybenzo­[1,2- b :4,5- b ′]­dithiophene (DMBDT), dithieno­[2,3- b :2′,3′- e ]­pyridine (PyDT) , fluorene (Flu), , carbazole (Cbz), , dibenzo­[ b , d ]­silole (DBSi), cyclopenta­[2,1- b :3,4- b ′]­dithiophene (CPDT), , dithieno­[3,2- b :2′,3′- d ]­pyrrole (PDT), dithieno­[3,2- b :2′,3′- d ]­thiophene (TDT), dithieno­[3,2- b :2′,3′- d ]­silole (SiDT), , indacenodithiophene (IDT), pyrroloindacenodithiophene (PIDT), and silaindacenodithiophene (SiIDT), , linked with electron-withdrawing isoindigo group to design a series of donor molecules for BHJ OSCs. The molecular design follows the D 2 –A–D 1 –A–D 2 and D 2 –A–π–D 1 –π–A–D 2 configurations.…”
Section: Introductionmentioning
confidence: 99%