Hydrothermal synthesis and thermoelectric transport properties of Sb2Te3–Te heterogeneous nanostructures

Inorganic-Salt-Assisted Morphological Evolution and Visible-Light-Driven Photocatalytic Performance of Bi2WO6 Nanostructures

“…For example, our group has reported a unique Sb 2 Te 3 −Te nanoheterojunction structure, which is formed by the over growth of Sb 2 Te 3 nanosheets on the already formed Te nanorods. 42 In our case, the Bi 2 WO 6 QDs are formed on the homophased Bi 2 WO 6 SSNPs, which may pave a new way to the synthesis of homo/ heterojunctions based on Bi 2 WO 6 nano-or microstructures. The formation of Bi 2 WO 6 NNS-ANPs, SSNPs and QDs-NPs follows a multistepped growth pattern while the formation of Bi 2 WO 6 RNS-ANPs follows the classical Ostwald ripening pattern.…”

Impurity-Controlled Crystal Growth in Low-Dimensional Bismuth Telluride

“…After growth for 3.5 h, heterogeneous nanostructures (HNSs) that are visualized as nanosheets on the body of nanorod skewers started to form (Figure b). Nanorod–nanosheet HNSs have been previously observed in the synthesis of Bi/Sb 2 Te 3 , and an improvement in the thermoelectric property of the material has been reported at this stage compared with that of pure nanosheets. , After growth for 5 h, a larger quantity of nanosheets was grown on each nanorod (Figure c and Figure S7), motivating the idea of nanorods being the first product in the growth process as has been shown previously. , Wavelength dispersive spectrometry (WDS) elemental mapping showed (Figure S8) that while nanorods are purely made of tellurium, both bismuth and tellurium are present in nanosheets regardless of being isolated or attached to the nanorods. At later stages of growth, more isolated nanosheets can be distinguished while both HNSs and isolated nanorods still exist (Figure d).…”

Enhancement of thermal stability in bismuth phosphate by Ln3+ doping for tailored luminescence properties

“…8 To meet specific applications, Ln 3+ ions have to be doped into the lattice of the hosts, which, however, strikingly depends on several factors like reaction conditions, particle sizes, phase structure, and shape of the target host materials. 9,10 There have been many reports on the preparation of Ln 3+ containing materials with controlled particle sizes or morphologies, while it has only rarely been possible for Ln 3+ ions to stabilize some specific phases of multi-functions especially those at the nanoscale. 11,12 As a consequence, the issue that Ln 3+ ions could stabilize some specific nanostructures becomes crucially important, because (i) many specific phases usually show surprising physical or chemical properties, while they often suffer from low structural stability.…”