title: Tunable multicolor carbon dots prepared from well-defined polythiophene derivatives and their emission mechanism.
abstract: Various functional precursors based on polythiophene derivatives are designed to prepare carbon dots (C-dots) with tunable emissions ranging from blue to near-infrared (NIR) at a single excitation wavelength (400 nm). The as-prepared C-dots demonstrate homogeneous size, superior optical properties, excellent water solubility, and low cytotoxicity. Thus, the C-dots are candidates for bio-imaging. A tunable photoluminescence mechanism is proposed to result from variations in the surface state and N content.
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. jchge2010@mail.ipc.ac.cn and University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Guo
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. jchge2010@mail.ipc.ac.cn.
authors.forename: Jiechao
authors.initials: J
authors.lastname: Ge
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. jchge2010@mail.ipc.ac.cn.
authors.forename: Weimin
authors.initials: W
authors.lastname: Liu
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. jchge2010@mail.ipc.ac.cn and University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Guangle
authors.initials: G
authors.lastname: Niu
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. jchge2010@mail.ipc.ac.cn and University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Qingyan
authors.initials: Q
authors.lastname: Jia
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. jchge2010@mail.ipc.ac.cn and University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. jchge2010@mail.ipc.ac.cn.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Wang
mesh_terms: D002244:Carbon / Q000737:chemistry*; D006367:HeLa Cells; D006801:Humans; D008422:Materials Testing; D046529:Microscopy, Electron, Transmission; D009584:Nitrogen / Q000737:chemistry; D010777:Photochemistry; D011108:Polymers / Q000737:chemistry*; D045663:Quantum Dots / Q000737:chemistry*; D012995:Solubility; D013056:Spectrophotometry, Ultraviolet; D019265:Spectroscopy, Near-Infrared; D013876:Thiophenes / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D011108:Polymers; D013876:Thiophenes; D014867:Water; C066730:polythiophene; D002244:Carbon; D009584:Nitrogen