Facile metal-free synthesis of thiazolo[5,4-d]thiazole-containing conjugated polymers for thin-film electronics

• Published in: Synthetic metals Vol. 306; p. 117614
• Main Authors: Lolaeva, Alina V., Zhivchikova, Aleksandra N., Tepliakova, Marina M., Sagdullina, Diana K., Akkuratov, Alexander V., Kuznetsov, Ilya E.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2024
• Subjects: Green chemistry; Green polymerization; Hole-transport materials; Metal-free polycondensation; Thiazolothiazole; Metal-free polycondensation; Hole-transport materials; Thiazolothiazole; Green chemistry; Green polymerization
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/j.synthmet.2024.117614

Herein, we report the facile metal-free polycondensation reaction between dicarbonyl derivative and dithioxamide for the synthesis of thiazolo[5,4-d]thiazole-based semiconductor polymer. We showed that the polymers obtained by classical Suzuki or Stille reactions and proposed metal-free polycondensation possess similar optoelectronic and physicochemical characteristics. Their application as hole-transport layers in perovskite solar cells (PSCs) showed that the polymer obtained by an alternative method provides comparable or even slightly higher performance of devices. These results illustrate availability of organic semiconductor materials via alternative green and sustainable polycondensation reaction for the state-of-the-art photovoltaic technologies. [Display omitted] •A new conjugated polymer based on carbazole, thiophene and thiazolothiazole is obtained.•Polymers obtained by an alternative method and Stille or Suzuki reactions have a similar optoelectronic properties.•Polymer obtained by alternative method provides superior performance of perovskite solar cells with higher fill factor.