title: Study on NIR optical rewritable film based on dithienylethene and upconversion nanocrystals.
abstract: Tm3+ and Yb3+ codoped NaYF4 upconversion (UC) nanoparticles (NPs) with intense ultraviolet (UV) fluorescence were synthesized using a solvothermal approach. NIR optical rewritable film incorporated with the UCNPs and dithienylethene (DTE) were performed for optical storage based on the photochromic reaction of DTE induced by the intense UV from themultiphoton UC fluorescence of NaYF4NPs. The photochromic DTE did not exhibit obvious fatigue after repetitious write/erase cycles using NIR/green irradiation.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
authors.forename: Xuesong
authors.initials: X
authors.lastname: Zhai
authors.forename: Feng
authors.initials: F
authors.lastname: Shi
authors.forename: Huan
authors.initials: H
authors.lastname: Chen
authors.forename: Dan
authors.initials: D
authors.lastname: Zhao
authors.forename: Daisheng
authors.initials: D
authors.lastname: Zhang
authors.forename: Weiping
authors.initials: W
authors.lastname: Qin