Preparation of V2O5 Thin Film by Sol-Gel Technique and Pen Plotter Printing

The work is dedicated to study of thin V2O5 film formation by pen plotter printing using vanadyl alkoxyacetylacetonate as hydrolytically active precursor. Solution of the prepared vanadyl butoxyacetylacetonate complex with 87% of butoxyl groups was used as functional ink for pen plotter printing of thin V2O5 film on surface of specialized chip. According to atomic force microscopy (AFM) and scanning electron microscopy (SEM), oxide film consists of nanorods 35-75 nm in thickness and 120-285 nm in length, with crystallite size of 54 +/- 4 nm. Data from Rietveld refinement of the X-ray powder diffraction results and work function value (4.54 eV) indicate high content of defects (such as oxygen vacancies) in the material. Electrophysical properties study suggests that correlated barrier hopping of the charge carriers is the main conductivity mechanism. Conductivity activation energy E-a was found to be 0.24 eV.

Automated summary

This work focuses on the formation of thin V2O5 film by pen plotter printing using a hydrolytically active precursor called vanadyl alkoxyacetylacetonate. The functional ink used for printing is a solution of a vanadyl butoxyacetylacetonate complex with 87% butoxyl groups. The resulting oxide film consists of nanorods with a thickness of 35-75 nm and a length of 120-285 nm, and has a crystallite size of 54 +/- 4 nm. The material shows a high content of defects and the main conductivity mechanism is correlated barrier hopping of the charge carriers, with a conductivity activation energy of 0.24 eV.