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Issue 10, 2017
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Wavelength-focusing organic molecular materials with diazoacetate or fumarate as a monofluorophore

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Abstract

The wavelength of incident light can be shifted by down-conversion (DC) and up-conversion (UC) photofluorescence. DC and UC molecules are typically independent one-way conversion species, and UC should be stimulated by a laser source. In this paper, we find that diazoacetate- and fumarate-containing fluorescent molecules are wavelength-focusing species of simulated solar radiation. Monochromatic UV and NIR lights (354/696, 457/819 or 346/686 nm) are synchronously focused to 454, 473 or 454 nm, respectively, using (5R)-5-cyano-3-carbmenthoxy-2-pyrazoline, 3-carbethoxy-2-pyrazoline grafted polyvinyl alcohol and a cyclic oligomer of ethyl diazoacetate with carbethoxy carbene and allyl acrylate. With a broadband light source, portions of the 300–500 nm and 580–800 nm wavelength bands of incident light are synchronously converted to 507 nm using a copolymer of PEG and fumarate, which offers a promising way to harvest the UV and NIR portions of sunlight in the visible region.

Graphical abstract: Wavelength-focusing organic molecular materials with diazoacetate or fumarate as a monofluorophore

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Publication details

The article was received on 16 Dec 2016, accepted on 18 Apr 2017 and first published on 19 Apr 2017


Article type: Letter
DOI: 10.1039/C6NJ03952A
Citation: New J. Chem., 2017,41, 3719-3722
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    Wavelength-focusing organic molecular materials with diazoacetate or fumarate as a monofluorophore

    C. Chen, Y. Li, X. Jia, F. Li, F. Chen and L. Liu, New J. Chem., 2017, 41, 3719
    DOI: 10.1039/C6NJ03952A

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