Nano-size V2O5 is synthesized by a simple one step solution combustion method.
Stable orthorhombic V2O5 forms instantaneously and is highly crystalline.
Addition of surfactant helps to reduce the particle size and agglomeration.
High purity, crystallinity and nano-size leads to high TCR value with low hysteresis effect with a temperature width of 5 °C.
A single phase of orthorhombic nano-vanadium pentoxide (V2O5) is produced using a one pot synthesis method of solution combustion process. The yellow-orange colored powder of V2O5 is obtained instantaneously by this method and has elliptical to spherical like morphology of its platelets. A majority of these particles are in the size range of less than 200 nm. As revealed by HRTEM this simple method of synthesis yields a highly crystalline product with monocrystalline and polycrystalline particles of V2O5 existing in the same matrix. The product shows a negative temperature coefficient of resistance (TCR) value of −3.2% °C−1 and a low hysteresis effect with temperature width of 5 °C in response to temperature variations. Such characteristics demonstrate that preparation of V2O5 by this facile method renders it a promising candidate for bolometric applications.