A nanometre is a unit of length used to measure extremely small objects, such as atoms and molecules. It is equal to one billionth of a meter. Full definition
Even just a couple of nanometres out of spec can change the functionality from transparent to reflective, and ultimately customer dissatisfaction. (nanotechweb.org)
Lin's team has now come up with an alternative using quantum dots — light - sensitive, semiconducting particles just a few nanometres in diameter. (newscientist.com)
In the current work, Blamire and his collaborators used a multi-layered stack of metal films in which each layer was only a few nanometres thick. (sciencedaily.com)