静电纺丝法制备不同形貌的金属氧化物纳米纤维及其光电特性.pdfVIP

Abstract In recent years, nanomaterials have become the research hotspot in the field of condensed matter physics and materials science applications, which will stimulate the rapid innovation and development of nanotechnology. Electrospinning has been recognized as a convenient, efficient and easy-controlled technique to produce micro/nanostructures, especially forthe one-dimensional(1D)nanostructure. Duetotheir uniquephysical, chemical andbiological properties, 1Dnanomaterials havebeen widely applied in many fields such as nanoscale electronic devices, optoelectronic devices, sensors,photocatalyticandsolarcells,etc. First of all,ultrathin In O hollow fibershave been successfullyprepared by anew 2 3 method combining electrospinning and magnetron sputtering. We have investigated the photoresponse of the In O hollow fibers under UV illumination with different 2 3 wavelengths and the results show that the as-assemble device could enhance the conductionsignificantlywhenexposedtoUVlight.Thesensitivityisashighas 10 while2 theresponse time is lessthan 10s.In addition,We also studiedthe relationship between distanceandsensitivity,anddemonstratedthatthe sensitivitydecreaseswiththe increase ofthelamp-to-sampledistance. Secondly, TiO nanorods with anatase phase have been fabricated successfully2 through traditional electrospinning. In addition, the mechanical and optical properties wereinvestigatedandtheresults showedthatthedevicebased onTiO nanorodsexhibits2 high sensitivityandgood stabilityunderbending, andthephotocurrentbecame increased with a high sensitivity (~10) when exposed under light with the power of 10.24mW,3 which demonstrated the device