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Issue 14, 2012
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Top down fabrication of organic nanocrystals by femtosecond laser induced transfer method

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Abstract

We present the preparation of nanometer-size organic crystals using femtosecond laser induced forward transfer (Fs-LIFT) method. 1,4-Bis(4-methylstyryl)benzene (BSB-Me) nanocrystals are directly deposited on the substrate to form a nanocrystal film. Size and morphology as functions of applied laser fluence are investigated. We show that monodispersed organic nanoparticles with size varying from 40 nm to 300 nm could be obtained by careful adjustment of the experimental conditions. The produced nanoparticles exhibit well defined shapes, such as cube and tetrahedron with rather sharp edges. The as-prepared products have been characterized by means of X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM and selected area electron diffraction. The organic nanoparticles are demonstrated single crystalline, and FTIR spectra before and after the Fs-LIFT process shows that no significant chemical decomposition occurs during the process.

Graphical abstract: Top down fabrication of organic nanocrystals by femtosecond laser induced transfer method

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Publication details

The article was received on 24 Nov 2011, accepted on 05 Apr 2012 and first published on 23 May 2012


Article type: Paper
DOI: 10.1039/C2CE06579G
Citation: CrystEngComm, 2012,14, 4596-4600
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    Top down fabrication of organic nanocrystals by femtosecond laser induced transfer method

    H. Fang, J. Yang, R. Ding, J. Feng, Q. Chen and H. Sun, CrystEngComm, 2012, 14, 4596
    DOI: 10.1039/C2CE06579G

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