title: Visible-Light Modulation on Lattice Dielectric Responses of a Piezo-Phototronic Soft Material.
abstract: In situ synchrotron X-ray diffraction is used to investigate a three-way piezo-phototronic soft material. This new system is composed of a semi-crystalline poly(vinylidene fluoride-co-trifluoroethylene) piezoelectric polymer and titanium oxide nanoparticles. Under light illumination, photon-induced piezoelectric responses are nearly two times higher at both the lattice-structure and the macroscopic level than under conditions without light illumination. A mechanistic model is proposed.
authors.affiliation: Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu, Taiwan, 30010, Taiwan (R.O.C.).
authors.forename: E-Wen
authors.initials: EW
authors.lastname: Huang
authors.affiliation: Institute of Applied Mechanics, National Taiwan University, 1, Sec. 4, Roosevelt Road, Taipei, 106, Taiwan (R.O.C.).
authors.forename: Yu-Hsiang
authors.initials: YH
authors.lastname: Hsu
authors.affiliation: National Synchrotron Radiation Center, 101, Hsin-Ann Road, Hsinchu Science Park, Hsinchu, 30076, Taiwan (R.O.C.).
authors.forename: Wei-Tsung
authors.initials: WT
authors.lastname: Chuang
authors.affiliation: Green Energy and Eco-Technology System Center, Industrial Technology Research Institute, ITRI Southern Campus, Tainan City, 70955, Taiwan (R.O.C.).
authors.forename: Wen-Ching
authors.initials: WC
authors.lastname: Ko
authors.affiliation: National Synchrotron Radiation Center, 101, Hsin-Ann Road, Hsinchu Science Park, Hsinchu, 30076, Taiwan (R.O.C.).
authors.forename: Chung-Kai
authors.initials: CK
authors.lastname: Chang
authors.affiliation: Institute of Applied Mechanics, National Taiwan University, 1, Sec. 4, Roosevelt Road, Taipei, 106, Taiwan (R.O.C.).
authors.forename: Chih-Kung
authors.initials: CK
authors.lastname: Lee
authors.affiliation: Institute of Applied Mechanics, National Taiwan University, 1, Sec. 4, Roosevelt Road, Taipei, 106, Taiwan (R.O.C.).
authors.forename: Wen-Chi
authors.initials: WC
authors.lastname: Chang
authors.affiliation: Department of Chemical and Materials Engineering, National Central University, No. 300, Zhongda Rd., Zhongli District, Taoyuan City, 32001, Taiwan (R.O.C.).
authors.forename: Tzu-Kang
authors.initials: TK
authors.lastname: Liao
authors.affiliation: Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu, Taiwan, 30010, Taiwan (R.O.C.).
authors.forename: Hao Cheng
authors.initials: HC
authors.lastname: Thong
keywords: in-situ synchrotron X-ray diffraction; photoconductive materials; piezo-phototronic materials; piezoelectric materials; visible light modulation