Hot Article: Luminescent filter paper created using cadmium selenide nanoparticles

23 Nov 2010

A team from Zhejiang University have fabricated a novel luminescent sheet by deposition of cadmium selenide nanoparticles onto cellulose nanofibres of commercial filter paper.

Semi-conductor nanocrystals, particularly cadmium selenide (CdSe) quantum dots (QDs), have triggered intensive research interest because of their fascinating luminescent properties. A key step in broadening the practical applications is to stabilize the nanocrystals into matrices to get bulk solid state materials.

Jianguo Huang and co-workers in China fabricated a hierarchical luminescent cellulose sheet via self-assembly of cadmium selenide (CdSe) nanoparticles capped with trioctylphosphine oxide (TOPO) and 1-hexadecylamine (HDA) onto ultrathin titania film pre-coated cellulose nanofibres of bulk natural cellulose substance (common commercial filter paper).

This approach provides a facile shortcut to fabricate bulk luminescent materials that inherit the mechanical behaviour of cellulose substances and simultaneously possess designed luminescent properties.

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