Sulfur-free synthesis of size tunable rickardite (Cu  3− x  Te 2 ) spheroids and planar squares | Zendy

Guanwei Jia | Zendy; Chengduo Wang | Zendy; Peixu Yang | Zendy; Jinhui Liu | Zendy; Weidong Zhang | Zendy; Rongbin Li | Zendy; Shaojun Zhang | Zendy; Jiang Du | Zendy

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Sulfur-free synthesis of size tunable rickardite (Cu _{3− x} Te ₂ ) spheroids and planar squares

Author(s) -

Guanwei Jia,

Chengduo Wang,

Peixu Yang,

Jinhui Liu,

Weidong Zhang,

Rongbin Li,

Shaojun Zhang,

Jiang Du

Publication year - 2019

Publication title -

royal society open science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.84

H-Index - 51

ISSN - 2054-5703

DOI - 10.1098/rsos.181602

Subject(s) - planar , sulfur , spheroid , combinatorics , physics , mathematics , least squares function approximation , crystallography , chemistry , materials science , computer science , statistics , computer graphics (images) , biochemistry , organic chemistry , estimator , in vitro

We report a novel synthesis of monodisperse samples of copper telluride with crystallinity and stoichiometry corresponding to forms of rickardite, Cu 3− x Te 2 ( x < 1). This synthesis makes use of a ligand balanced reaction to allow control over shape and size by varying the relative and absolute concentration of oleylamine to stearic acid. The rickardite samples presented here display size dependent plasmon peaks in the near infrared and direct energy band gaps between 1.7 and 2.3 eV. As such they may find utility in photovoltaic, thermoelectric or as novel optical materials for study of surface plasmons.

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