title: Novel carbazole derivatives with quinoline ring: synthesis, electronic transition, and two-photon absorption three-dimensional optical data storage.
abstract: We designed carbazole unit with an extended π conjugation by employing Vilsmeier formylation reaction and Knoevenagel condensation to facilitate the functional groups of quinoline from 3- or 3,6-position of carbazole. Two compounds doped with poly(methyl methacrylate) (PMMA) films were prepared. To explore the electronic transition properties of these compounds, one-photon absorption properties were experimentally measured and theoretically calculated by using the time-dependent density functional theory. We surveyed these films by using an 800 nm Ti:sapphire 120-fs laser with two-photon absorption (TPA) fluorescence emission properties and TPA coefficients to obtain the TPA cross sections. A three-dimensional optical data storage experiment was conducted by using a TPA photoreaction with an 800 nm-fs laser on the film to obtain a seven-layer optical data storage. The experiment proves that these carbazole derivatives are well suited for two-photon 3D optical storage, thus laying the foundation for the research of multilayer high-density and ultra-high-density optical information storage materials.
authors.affiliation: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390, Qinghe Road, Jiading District, Shanghai 201800, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Li
authors.affiliation: Key Lab of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education, Harbin 150080, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
authors.affiliation: Department of Precision Machinery and Precision Instrument, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: Yanlei
authors.initials: Y
authors.lastname: Hu
authors.affiliation: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390, Qinghe Road, Jiading District, Shanghai 201800, China.
authors.forename: Geng
authors.initials: G
authors.lastname: Lin
authors.affiliation: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390, Qinghe Road, Jiading District, Shanghai 201800, China; Key Lab of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education, Harbin 150080, China. Electronic address: yqwu@siom.ac.cn.
authors.forename: Yiqun
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Department of Precision Machinery and Precision Instrument, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: Wenhao
authors.initials: W
authors.lastname: Huang
authors.affiliation: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390, Qinghe Road, Jiading District, Shanghai 201800, China.
authors.forename: Quanzhong
authors.initials: Q
authors.lastname: Zhao
mesh_terms: D065966:Absorption, Physicochemical; D002227:Carbazoles / Q000737:chemistry*; D004583:Electrons; D016247:Information Storage and Retrieval; D008958:Models, Molecular; D008968:Molecular Conformation; D055620:Optical Phenomena; D017785:Photons; D011789:Quantum Theory; D011804:Quinolines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: D002227:Carbazoles; D011804:Quinolines; C041514:carbazole; C037219:quinoline
keywords: 3D optical data storage; 800nm-fs laser; Carbazole derivatives; Electronic transition; Time-dependent density functional theory; Two-photon absorption