Growth and luminescence properties of micro- and nanoneedles in sintered CdSe | Zendy

A. Urbieta | Zendy; Paloma Fernández | Zendy; J. Piqueras | Zendy

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Growth and luminescence properties of micro- and nanoneedles in sintered CdSe

Author(s) -

A. Urbieta,

Paloma Fernández,

J. Piqueras

Publication year - 2004

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.1830083

Subject(s) - cathodoluminescence , scanning electron microscope , materials science , sintering , rod , luminescence , argon , ball mill , electron microscope , composite material , mineralogy , nanotechnology , metallurgy , chemical engineering , optoelectronics , optics , chemistry , medicine , alternative medicine , organic chemistry , pathology , physics , engineering

Sintering CdSe powder under argon flow at temperatures in the range 800-900 degreesC produces the formation of needles on the sample surface. Bundles of parallel needles of a diameter of about 50 nm give rise to a domain-like appearance in the sample. In addition, rods and needles with a wide range of dimensions up to several microns appear distributed in the surface. The influence of ball milling of the starting powder on the formation of the needles is investigated. Cathodoluminescence in the scanning electron microscope has been used to characterize the sintered samples

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