▎ 摘　　要

NOVELTY - Preparing flexible photosensitive conductive fiber based on azobenzene/graphene oxide/silver nanowires comprises e.g. ultrasonically dispersing graphene oxide powder in water to obtain 1 mg/ml graphene oxide aqueous solution, adding azo tetradehydrofuran bromide in mixed solution of trimethylamine ethanol solution and acetonitrile solution, raising temperature to 60-80 degrees C, reacting for 8-12 hours, cooling to room temperature, performing rotary distillation to remove ethanol and acetonitrile to obtain crude product, recrystallizing crude product using ethanol for two times, drying under vacuum at room temperature for 8-12 hours, dispersing into deionized water to obtain aqueous solution of cationic azobenzene, adding 1-4 g polyvinylpyrrolidone in 30-70 ml ethylene glycol, ultrasonically dispersing for 20-40 minutes to completely dissolve, transferring to three-necked flask, adding 30-70 ml ethylene glycol, and reacting under vigorous stirring state at 150-170 degrees C for 1 hour. USE - The flexible photosensitive conductive fiber is useful in optoelectronic devices, flexible wearable devices, sensors, and photosensitive materials. ADVANTAGE - The fiber has good electrical conductivity, mechanical properties, and photographic performance. DETAILED DESCRIPTION - Preparing flexible photosensitive conductive fiber based on azobenzene/graphene oxide/silver nanowires comprises (i) ultrasonically dispersing graphene oxide powder in water to obtain 1 mg/ml graphene oxide aqueous solution, (ii) adding azo tetradehydrofuran bromide in mixed solution of trimethylamine ethanol solution and acetonitrile solution, raising temperature to 60-80 degrees C, reacting for 8-12 hours, cooling to room temperature, performing rotary distillation to remove ethanol and acetonitrile to obtain crude product, recrystallizing crude product using ethanol for two times, drying under vacuum at room temperature for 8-12 hours, and dispersing into deionized water to obtain aqueous solution of cationic azobenzene, (iii) adding 1-4 g polyvinylpyrrolidone in 30-70 ml ethylene glycol, ultrasonically dispersing for 20-40 minutes to completely dissolve, transferring to three-necked flask, adding 30-70 ml ethylene glycol, reacting under vigorous stirring state at 150-170 degrees C for 1 hour, dissolving 0.2-0.8 g silver nitrate in 10-50 ml ethylene glycol, slowly dropping, reacting for 1 hour, cooling, centrifuging separately with deionized water and ethanol, and dispersing in water to obtain a silver nanowire solution, (iv) dropping 0.6 nM aqueous solution of the cationic azobenzene in 80 ml aqueous graphene oxide solution, performing ultrasonication at room temperature for 1-2 hours, carrying out suction filtration, washing with deionized water to remove excess cationic azobenzene to obtain azobenzene/graphene oxide, and dispersing nitrogen benzene/graphene oxide to obtain azobenzene/graphene oxide solution, (v) adding the silver nanowire solution in azobenzene/graphene oxide solution, stirring for 20-30 minutes, and ultrasonically treating for 1-2 hours to obtain inner spinning solution, (vi) dissolving sodium carboxymethylcellulose in water to obtain sodium carboxymethylcellulose solution having a concentration of 10 mg/ml, and stirring for 1-2 hours to obtain outer spinning solution, and (vii) transferring spinning solution obtained in the step (v) and (vi) to the inner and outer layers of the syringe, spinning using spinning device, and drying in coagulation bath for 30-60 minutes at room temperature to obtain azobenzene/graphite oxide/silver nanowire fibers.