Ratio of surface areas normal to the polar axis of ZnO with respect to lateral faces and absolute numbers of surfactants bound to the top, bottom and lateral faces.

For comparison of association to the top and to lateral faces, the numbers of surfactants were put in relation to the corresponding surface areas.

Ratio of surface areas normal to the polar axis of ZnO with respect to lateral faces and absolute numbers of surfactants bound to the top, bottom and lateral faces.