ICCAS OpenIR
Polymer-Assisted Crystallization and Optical Properties of Uniform Microrods of Organic Dye Sudan II
Yu, Han; Qi, Limin
2009-06-16
Source PublicationLANGMUIR
ISSN0743-7463
Volume25Issue:12Pages:6781-6786
AbstractThe self-assembly of uniform single-crystal line microrods of organic dye Sudan II (1-(2,4-dimethylphenylazo)-2-naphthol) in solution was achieved by reprecipitation with the assistance of amphiphilic block copolymer Pluronic F127. It was found that the formation of F127 micelles was favorable for the production or uniform Sudan II microrods whereas individual F127 molecules favored the formation of Sudan II fibers. The optical absorption and fluorescence emission properties of the uniform microrods were characterized, and the time-dependent spectra of the precipitating solution for microrod formation were measured to monitor the self-assembly process of Sudan II molecules. The Sudan II microrods exhibited intense fluorescence emission, indicating an unusual aggregation-induced emission (AIE) phenomenon for Sudan II. The fluorescent microscopy investigation suggested that the obtained Sudan II microrods exhibited remarkable optical waveguide behavior, which is expected to serve as single rod active optical waveguides that can be used as building blocks for miniaturized photonic devices. Furthermore, novel Sudan II microplates, which exhibited interesting 2D optical waveguide behavior, were readily obtained by reprecipitation of Sudan II from cationic surfactant cetyltrimethylammonium bromide (CTAB) solution.
DOI10.1021/la900296y
Indexed BySCI
Language英语
WOS IDWOS:000266929900030
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66340
Collection中国科学院化学研究所
Corresponding AuthorQi, Limin
AffiliationPeking Univ, Coll Chem, State Key Lab Struct Chem Unstable & Stable Speci, BNLMS, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Yu, Han,Qi, Limin. Polymer-Assisted Crystallization and Optical Properties of Uniform Microrods of Organic Dye Sudan II[J]. LANGMUIR,2009,25(12):6781-6786.
APA Yu, Han,&Qi, Limin.(2009).Polymer-Assisted Crystallization and Optical Properties of Uniform Microrods of Organic Dye Sudan II.LANGMUIR,25(12),6781-6786.
MLA Yu, Han,et al."Polymer-Assisted Crystallization and Optical Properties of Uniform Microrods of Organic Dye Sudan II".LANGMUIR 25.12(2009):6781-6786.
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