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3. Photosensitivity enhancement at visible in Polyvinylpyrrolidone-based polymers doped with Fe and Cu ions

Author

Chen Liyun, Wang Yunxia, Guo Chengcheng, Mingming Pan, Ma Ziwei, Li Qiang, and Lijun Wu

Subjects
chemistry.chemical_classification, Materials science, Polyvinylpyrrolidone, Composite number, Doping, General Physics and Astronomy, 02 engineering and technology, Polymer, 010402 general chemistry, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, 0104 chemical sciences, law.invention, Chemical engineering, chemistry, law, medicine, Irradiation, Physical and Theoretical Chemistry, Absorption (chemistry), 0210 nano-technology, Photonic crystal, medicine.drug
Abstract

By introducing Cu and Fe ions into the Polyvinylpyrrolidone (PVP) polymer, its photonic band gap is reduced from 5.0 eV to 3.4 and 2.7 eV respectively, whereby the absorption and optical sensitivity in visible are greatly enhanced. After laser irradiation, the formed composite can be cross-linked and solidified. High quality photonic crystals are produced in Fe3+-PVP composite film. Our research will help us understanding the interaction mechanism between metallic ions and polymers under laser irradiation. The composite material system will find wide applications in polymer-based optical devices.

Published
2020

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