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Realizing single-crystalline vertically-oriented and high-density electrospun nanofibril bundles by controlled postcalcination

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Abstract

For the first time, single-crystal (SC), vertically-oriented and high-density electrospun ultrafine nanofiber/fibre bundles (NFBs) were achieved by the controlled postcalcination of as-spun fibers. The formation of high-density SC strontium carbonate (i.e. SrCO3) nanoneedles (NNs) quasi-vertically grown with an average diameter of ∼20 nm, several micrometers long that stand perpendicular to the growth surface, is demonstrated. Furthermore, under electron-beam irradiation, an individual as-calcined SC SrCO3 NN undergoes sequential structural transitions from the [110] SC—to—polycrystalline—to—[102] SC SrCO3 NN, which was revealed by in situ transmission electron microscopy. Photoluminescence quenching over the full solar spectrum range was observed in the as-calcined vertically-oriented SrCO3 NFBs.

Graphical abstract: Realizing single-crystalline vertically-oriented and high-density electrospun nanofibril bundles by controlled postcalcination

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Publication details

The article was received on 05 May 2017, accepted on 05 Jun 2017 and first published on 05 Jun 2017


Article type: Communication
DOI: 10.1039/C7CE00847C
Citation: CrystEngComm, 2017, Advance Article
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    Realizing single-crystalline vertically-oriented and high-density electrospun nanofibril bundles by controlled postcalcination

    J. Li, CrystEngComm, 2017, Advance Article , DOI: 10.1039/C7CE00847C

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