Growth, structure, luminescence and mechanical resonance of Bi2O3 nano- and microwires. Issue 1 (13th November 2014)

• Record Type: Journal Article
• Authors: Vila, María; Díaz-Guerra, Carlos; Piqueras, Javier; López-Conesa, Lluís; Estradé, Sònia; Peiró, Francesca
• Is Part Of: CrystEngComm. Volume 17:Issue 1(2015)
• Page Start: 132
• Page End: 139
• Publication Date: 2014-11-13
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c4ce01639d
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : The growth, morphology, structure and luminescence properties of α-Bi2 O3 hierarchical architectures are reported. The Young moduli and quality factors of the microwires as micromechanical resonators were determined from their resonance frequencies. Abstract : α-Bi2 O3 hierarchical structures formed by multibranched micro- and nanowires have been grown by an evaporation–deposition method. The morphology, composition, structure, and several physical properties of the obtained nanowires have been investigated. The relative intensities of photoluminescence bands related to Bi 2+ ions and oxygen vacancies have been found to depend on the composition of the precursor used in the growth process. In situ scanning electron microscope measurements of the mechanical resonance frequency of the microwires have been used to determine their Young's modulus, which was found to depend on the wire dimensions, with values ranging from 11 GPa to 284 GPa. The quality factors measured suggest that Bi2 O3 wires may have potential applications as micromechanical resonators.