Controlling the Emission Properties of Quantum Rods via Multiscale 3D Ordered Organization | Zendy

Thomas Bizien | Zendy; Marie Postic | Zendy; Pascale EvenHernandez | Zendy; Pascal Panizza | Zendy; Cristelle Mériadec | Zendy; Florian Meneau | Zendy; Elsa MazariArrighi | Zendy; Christophe Dupuis | Zendy; Charlie Gosse | Zendy; Mircea Cotlet | Zendy; Oleg Gang | Zendy; Valérie Marchi | Zendy; Franck Artzner | Zendy

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Controlling the Emission Properties of Quantum Rods via Multiscale 3D Ordered Organization

Author(s) -

Thomas Bizien,

Marie Postic,

Pascale EvenHernandez,

Pascal Panizza,

Cristelle Mériadec,

Florian Meneau,

Elsa MazariArrighi,

Christophe Dupuis,

Charlie Gosse,

Mircea Cotlet,

Oleg Gang,

Valérie Marchi,

Franck Artzner

Publication year - 2021

Publication title -

journal of nanomaterials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.463

H-Index - 66

eISSN - 1687-4129

pISSN - 1687-4110

DOI - 10.1155/2021/1790976

Subject(s) - materials science , rod , luminescence , nanoscopic scale , optoelectronics , phase (matter) , fluorescence , scattering , nanotechnology , optics , medicine , chemistry , alternative medicine , physics , organic chemistry , pathology

A specific organization of optically active nanoscale objects can greatly affect the optical response of a system. Here, we report the controlled modification of the fluorescent emission by the assembly of water-soluble quantum rods (QRs). Our study combines optical, electron microcopy, and X-ray scattering characterizations to reveal a correlation between the self-assembly behavior of QRs into ordered 3D-arrays and the optical properties (luminescence) of formed assemblies, where the observed optical response is highly dependent on the QR aspect ratio. Specifically, shorter, 18 nm long QRs (QR18), exhibiting a well-defined smectic packing, demonstrate an enhancement of the emission intensity accompanied by a red shift and a lifetime reduction. In contrast, 40 nm long QRs (QR40), forming a columnar phase, does not show these optical properties.

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