Tunable band gaps of Co sub(3-x)Cu sub(x)O sub(4) nanorods with various Cu doping concentrations

Tunable band gaps of Co sub(3-x)Cu sub(x)O sub(4) nanorods with various Cu doping concentrations

Co sub(3-x)Cu sub(x)O sub(4) nanorods with a crystalline structure were synthesized via a solution process in this study. The Co sub(3-x)Cu sub(x)O sub(4) nanorods exhibit dual direct bandgaps and could be adjusted to 1.3-1.5 eV, and 2.55-3.5 eV by using different Cu-doping concentrations. The Co su...

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Veröffentlicht in:RSC advances 2014-05, Vol.4 (38), p.20053-20057
Hauptverfasser: Ho, Chun-Te, Weng, Tsu-Heng, Wang, Chiu-Yen, Yen, Shiang-Jie, Yew, Tri-Rung
Format: Artikel
Sprache:eng
Schlagworte:
Absorption coefficient
Adjustment
Crystal structure
Doping
Energy gaps (solid state)
Nanorods
Synthesis
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Zusammenfassung:Co sub(3-x)Cu sub(x)O sub(4) nanorods with a crystalline structure were synthesized via a solution process in this study. The Co sub(3-x)Cu sub(x)O sub(4) nanorods exhibit dual direct bandgaps and could be adjusted to 1.3-1.5 eV, and 2.55-3.5 eV by using different Cu-doping concentrations. The Co sub(3-x)Cu sub(x)O sub(4) nanorods show an absorption coefficient of similar to 10 super(4) cm super(-1) which increases with the increase of the Cu doping concentration.
ISSN:2046-2069
DOI:10.1039/c4ra01463d