The influence of resistance and carrier concentration on the output voltage of a ZnO nanogenerator

Abstract

Zinc oxide (ZnO) nanowires were synthesised through two different methods; the vapour liquid solid (VLS) method and an aqueous solution method. Each method had its own set of parameters and changes in those parameters influenced the output voltage of a nanogenerator. Changes in output voltage occurred as a result of variations in the resistance and the carrier concentration of grown nanowires as the piezoelectric charges were screened or trapped. An optimal value for both the resistance and the carrier concentration was determined in order to optimise the output voltage.

Electrodeposited CuO thin film for wide linear range photoelectrochemical glucose sensing

“…The low sensitivity could be attributed to the described high charge carrier concentration. This is supported by numerous reports concerning semiconductors having decreased sensitivity as a result of increased charge carrier density [59][60][61]. Additionally, the LOD at (S/N) of 3 decreased from 0.079 to 0.059 mM showing enhanced lower detection limits under illumination.…”