FULLERENE-LIKE NANOCRYSTALS OF TUNGSTEN DISULFIDE

Polyhedral structures skin to fullerenes, some exhibiting 'Russian dol l'-type structures, have recently been prepared in layered chalcogenid e materials such as WS2 (see figure). The materials are expected to ex hibit novel electronic-optical, and mechanical properties. The method of producing the structures is presented, and the possibility of exten ding the approach to high-T(c) superconductors is discussed.