Synthesis and characterization of BiFeO3 nanotube arrays and Y-junction BiFeO3 nanotubes

Understanding the synergistic effect of piezoelectric polarization and the extra electrons contributed by oxygen vacancies on an efficient piezo-photocatalysis CO2 reduction

“…The crystal orientation of BiFeO 3 and BiFeO 3−x confirms the tetragonal symmetry of the BiFeO 3 and BiFeO 3−x nanoparticles. 49,50 The difference between the lattice spacing of BiFeO 3 and BiFeO 3−x before and after the reduction treatment indicates that the crystal cell parameters and crystal plane spacing of BiFeO 3−x increase after the H 2 reduction treatment. This proves the successful introduction of oxygen vacancies.…”

Tunable Topological Lasing of Circularly Polarized Light in a Soft‐Matter‐Based Superlattice

“…At present, most of the topological lasers are based on photonic structures of characteristic size typically on the micrometer scale, with lasing wavelengths at the infrared wavelength region. On the other hand, laser sources in the visible spectral region play an important role in for example chemical detection, biology, and medicine, [ 39,40 ] so it is imperative to develop visible topological lasers. However, higher spatial resolution of fabrication has always been required in order to generate topological states within the visible wavelength range.…”

Synthesis and characterization of high density and high aspect ratio Ag2S nanoparticle nanowires from a paired cell method

“…Porous anodic aluminum oxide (AAO) has been widely used as a template for synthesizing one-dimensional nanowires and nanotubes of metals, semiconductors and ceramics. Filling the pores of AAO using electrochemical, sol-gel, paired cell, physical or chemical vapor deposition *Corresponding author (email: yangxc@tongji.edu.cn) methods allows the control of the growth direction and size of the filled material [12][13][14][15][16][17][18][19]. Among these methods, the paired cell method is very simple, electrodeless, low cost and easy to control, and has been widely used to prepare long and dense AgI nanowires [19], polycrystalline CdS nanowires [20], AgCl nanoparticle nanowires [21] and polypyrrole nanowire arrays [22].…”