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3,439 Newest Publications about the topic dyes


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Photoactive spherical colloids for opal photonic crystals

25-Apr-2013 | Davide Comoretto, Valentina Robbiano, Giancarlo Canazza, Luca Boarino, Guido Panzarasa, Michele Laus, Katia Sparnacci, Polymer Composites, 2013

Abstract The synthesis and characterization of submicrometer‐sized polymer particles, functionalized by different techniques with fluorescent dyes and featuring tunable surface charges, are described. Dyes with a polymerizable moiety were incorporated during emulsifier‐free or seeded emulsion ...


Demonstration of Efficient On-Chip Photon Transfer in Self-Assembled Optoplasmonic Networks

25-Apr-2013 | Wonmi Ahn; Yan Hong; Svetlana V. Boriskina; Björn M. Reinhard, ACS Nano, 2013

Plasmonic nanoantennas facilitate the manipulation of light fields on deeply sub-diffraction-limited length scales, but high dissipative losses in metals make new approaches for an efficient energy transfer in extended on-chip integrated plasmonic circuits mandatory. We demonstrate in this ...


Small-molecular blue phosphorescent dyes for organic light-emitting devices

24-Apr-2013 | Wai-Yeung (Raymond) Wong; Cheuk-Lam Ho, New Journal of Chemistry, 2013

Organic light-emitting devices (OLEDs) are on the lips of most electronic manufacturers in the current times. With good progress made in terms of production cost, efficiency and color output, OLEDs find more applications recently as compared to those some years ago. Because of the possibility of ...


Expeditious, mechanochemical synthesis of BODIPY dyes

23-Apr-2013 | Laramie P. Jameson and Sergei V. Dzyuba, Beilstein Journal of Organic Chemistry, 2013

Abstract BODIPY dyes have been synthesized under solvent-free or essentially solvent-free conditions, within about 5 minutes in an open-to-air setup by using a pestle and mortar, with yields that are comparable to those obtained via traditional routes that typically require reaction times of ...


Significant Enhancement of Open-Circuit Voltage in Indoline-Based Dye-Sensitized Solar Cells via Retarding Charge Recombination

23-Apr-2013 | Guo Li; Mao Liang; Hui Wang; Zhe Sun; Lina Wang; Zhihui Wang; Song Xue, Chemistry of Materials, 2013

Indoline dyes exhibit impressive short-circuit photocurrent (JSC) but show generally low open-circuit voltage (VOC) in dye-sensitized solar cells (DSCs). To retard charge recombination in DSCs, four indoline dyes (XS41, XS42, XS43, and XS44) featuring, respectively, dipropylfluorene, ...


Self-Assembly of Anionic Gemini Surfactant: Fluorescence Resonance Energy Transfer and Simulation Study

22-Apr-2013 | Lijuan Liu; Xuening Fei; Sen Zhu; Lu Yu; Baolian Zhang, Langmuir, 2013

The interaction of dyes with a sulfonated Gemini surfactant was investigated in aqueous solution using Förster resonance energy transfer with acridine orange (AO) as a donor and rhodamine B (RhB) as an acceptor. Surface tension results showed that AO and RhB have different effects on the ...


Silica Encapsulation of Fluorescent Nanodiamonds for Colloidal Stability and Facile Surface Functionalization

22-Apr-2013 | Ambika Bumb; Susanta K. Sarkar; Neil Billington; Martin W. Brechbiel; Keir C. Neuman, Journal of the American Chemical Society, 2013

Fluorescent nanodiamonds (FNDs) emit in the near-IR and do not photobleach or photoblink. These properties make FNDs better suited for numerous imaging applications compared with commonly used fluorescence agents such as organic dyes and quantum dots. However, nanodiamonds do not form stable ...


Synthesis and Functionalization of Triply Fused Porphyrin Dimers

19-Apr-2013 | Aoife A. Ryan, Mathias O. Senge, European Journal of Organic Chemistry, 2013

Abstract Current applications of porphyrins in medicine and optics, such as photodynamic therapy or nonlinear absorption, increasingly require the use of far‐red absorbing dyes. Modification of the porphyrin structure to accommodate these conditions can be achieved by extending the conjugation ...


Triggering and Monitoring Plasmon‐Enhanced Reactions by Optical Nanoantennas Coupled to Photocatalytic Beads

19-Apr-2013 | Marco Salmistraro, Adam Schwartzberg, Wei Bao, Laura E. Depero, Alexander Weber‐Bargioni, Stefano Cabrini, Ivano Ale ..., Small, 2013

Abstract Plasmonic metal/semiconductor nanocomposites promise to be a breakthrough for boosting and investigating photon‐assisted processes at the nanoscale, with exciting perspectives for energy conversion and catalysis. However, the efficiency and selectivity of these surface processes are ...


Large Increase in the Second‐Order Nonlinear Optical Activity of a Hemicyanine‐Incorporating Zeolite Film

18-Apr-2013 | Tung Cao Thanh Pham, Hyun Sung Kim, Kyung Byung Yoon, Angewandte Chemie International Edition, 2013

Nonlinear optics: A hemicyanine‐incorporating silicalite‐1 film with second‐order nonlinear optical properties supported on a glass plate was prepared. For the nonlinear optical properties of this material the number of hemicyanine dye moleclues included in the zeolite channels is important. ...


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