title: Electrospun Photochromic Hybrid Membranes for Flexible Rewritable Media.
abstract: Ink-free rewritable media has attracted great attention as a potential alternative to current paper prints, owing to its benefits to reducing paper production and consumption for environmental protection. It is desirable to develop rewritable media based on cheap, robust, and fast-response photochromic systems. Herein, we report the design and fabrication of flexible and photorewritable PVP/a-WO3hybrid membranes through electrospinning, on which images with high resolution can be photoprinted and heat-erased for over 40 cycles. The well conjugated organic-inorganic hybrid structure endows a fast "electron-proton double injection" from PVP to a-WO3in the coloration process and greatly improves the photochromic responses. The coloration times can be as short as tens of seconds and the erasure times can be as long as 10 days in ambient conditions. As-formed photochromic membranes are low-cost, environmental benign and easy for large-scale production, indicate their great potential as flexible rewritable media for practical usage.
authors: School of Chemistry & Chemical Engineering; National Engineering Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China.
authors: Jing
authors: J
authors: Wei
authors: School of Chemistry & Chemical Engineering; National Engineering Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China.
authors: Xiuling
authors: X
authors: Jiao
authors: School of Chemistry & Chemical Engineering; National Engineering Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China.
authors: Ting
authors: T
authors: Wang
authors: School of Chemistry & Chemical Engineering; National Engineering Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China.
authors: Dairong
authors: D
authors: Chen
keywords: electrospinning; hybrid membranes; photochromic; rewritable; tungsten oxide