Structure and Photoluminescence Properties of Thermally Synthesized V2O5 and Al-Doped V2O5 Nanostructures

Abstract

Al-free and Al-doped V2O5 nanostructures were synthesized by a thermal-chemical vapor deposition (CVD) process on Si(100) at 850 °C under 1.2 × 10−1 Torr via a vapor-solid (V-S) mechanism. X-ray diffraction (XRD), Raman, and high-resolution transmission electron microscopy (HRTEM) confirmed a typical orthorhombic V2O5 with the growth direction along [110]-direction of both nanostructures. Metallic Al, rather than Al3+-ion, was detected by X-ray photoelectron spectroscopy (XPS), affected the V2O5 crystallinity. The photoluminescence intensity of V2O5 nanostructure at 1.77 and 1.94 eV decreased with the increasing Al-dopant by about 61.6% and 59.9%, attributing to the metallic Al intercalated between the V2O5-layers and/or filled in the oxygen vacancies, which behaved as electron sinks. Thus the Al-doped V2O5 nanostructure shows the potential applications in smart windows and the electrodic material in a Li-ion battery.

Direct synthesis of vanadium pentoxide powder with carbon recombination as aqueous zinc-ion battery cathode

“…Currently, common methods have been made to synthesize vanadium oxide, including hydrothermal techniques, chemical vapor deposition, sol-gel, powder metallurgy, technique of liquid exfoliation, soft template approaches, and supercritical solvothermal reactions and so on [19][20][21][22][23][24]. Nevertheless, these processes usually involve including intricate processes including long-term aging responses, ethanol immersion processes, long waits, several washings, and heating at various steps are required to reach the end result.…”

Preparation, Photochromism, and Luminescence Principle of BMS: Dy3+, Eu3+ Ceramics

“…The color of most metal oxides is usually blue, such as V 2 O 5 [ 8–11 ] and WO 3 , [ 12–15 ] which can have luminescent properties by doping with other element to form germanate based phosphor, phosphate based phosphor, stannate based phosphor, titanate based phosphor, and borate based phosphor. [ 16–18 ] Barium magnesium silicate (BMS)‐based phosphors are inorganic phosphors that have a long history and promising applications in many emerging fields.…”