Abstract

Dendritic crystalline copper selenides Cu2-xSe microstructures with various dimensions have been fabricated in large scale through thermal treatment of CuSe powder in argon flow, without any catalyst. The CuSe powder grains were used as both reagents and substrates for the growth of the Cu2-xSe dendrites. The synthesized microstructures were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, selected area diffraction pattern and Raman spectroscopy. Each individual dendrite was mainly composed of a long central trunk with secondary lateral branches. The length of the main trunk was in the range 10-30 mu m, the width of the secondary branch lay in the range 1-5 mu m. The trunk was about 1-2 mu m in diameter while the lateral branches were about 0.4-0.8 mu m in diameter. The lateral branches grew in parallel and kept about 60 degrees with respect to the central trunk. A possible growth mechanism has been also proposed to account the growth of these Cu2-xSe dendritic microstructures.

Autore Pugliese

• Manno Daniela Erminia , Serra Antonio

Tutti gli autori

• E. Filippo , D. Manno , A. Serra

Titolo volume/Rivista

JOURNAL OF ALLOYS AND COMPOUNDS

Anno di pubblicazione

2012

ISSN

0925-8388

ISBN

Non Disponibile

Numero di citazioni Wos

19

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

18

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile