1:45 PM - 2:00 PM
△ [16p-E502-1] Modulation of Charge Carrier Transport Properties based on Precise and Systematic Arrangement Control of Organic Semiconductor BTBT
Keywords:organic salt, molecular arrangement, charge carrier mobility
The charge carrier mobility of organic semiconductors heavily depends on the overlap of π-conjugation between neighboring molecules. In the current work, organic salts composed of disulfonic acid with [1]benzothieno[3,2-b][1]benzothiophene (BTBT) and alkylamines were prepared. Based on the bulkiness of combined alkylamines, we precisely controlled only BTBT’s arrangement without any chemical modifications. Flash-photolysis time-resolved microwave conductivity and quantum chemical calculations elucidated the effect of the subtle difference of the overlap of π-conjugation on charge carrier mobility.