Potassium element modulation of optical and electrical properties of the quasi-one-dimensional KxBi1-xFeO3-y system

Yongping Liu, Dongchang Wu, Fenfen Wei, Tao Kong, Hao Yu, Jinping Zhang, Guosheng Cheng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Structural and elemental modifications of multiferroics evolve promising optical, electronic and magnetic properties. In this work, we report two new quaternary compounds (KxBi1-xFeO3-y) with nanowire and microrod structures synthesized based on potassium modification of BiFeO3 by polyethylene glycol (PEG) and hexadecyl trimethyl ammonium bromide (CTAB) assisted hydrothermal method, respectively. The surfactants (PEG and CTAB) directed the growth of these two quasi-one-dimensional K xBi1-xFeO3-y crystals. The structures of K xBi1-xFeO3-y nanowire and microrod were addressed by electron-microscopy crystallography. The lattice constants were measured from the electron diffraction patterns to be a = b = 0.593 nm, c = 1.605 nm for the nanowire (tetragonal crystal) and a = 0.792 nm, b = 0.563 nm, c = 1.440 nm and β = 123.3° for the microrod (monoclinic crystal). Furthermore, the KxBi1-xFeO3-y nanowires exhibited high conductivity while KxBi1-xFeO3-y microrods demonstrated near-infrared fluorescence. This work is to expand the application of these promising multiferroic materials with new optical and electronic properties.

Original languageEnglish
Pages (from-to)7189-7194
Number of pages6
Issue number21
Publication statusPublished - 7 Nov 2012

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