title: One-pot synthesis of liquid Hg/solid β-HgS metal-semiconductor heterostructures with unique electrical properties.
abstract: Liquid metal-solid semiconductor heterostructures, Hg heads combined with single-crystalline β-HgS tails, with controllable sizes and well-defined interfaces have been fabricated for the first time via one-pot synthesis. Such heterostructures can exist in water with good stability due to coordination adsorption of cysteine molecules onto the surface of both Hg and HgS through Hg-S bonds. Two-probe current-voltage curve measurements reveal that good ohmic contacts without additional resistance contacts are generated at the interfaces of Hg/β-HgS heterostructures. Only existence of ohmic contacts offers many potential applications of metal-semiconductor heterostructures in minimization of electronic devices.
authors.affiliation: Laboratory for Nanomaterials, National Center for Nanoscience and Technology, Beijing 100190, PR China.
authors.forename: Lei
authors.initials: L
authors.lastname: Wu
authors.forename: Baogang
authors.initials: B
authors.lastname: Quan
authors.forename: Yaling
authors.initials: Y
authors.lastname: Liu
authors.forename: Rui
authors.initials: R
authors.lastname: Song
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Tang
mesh_terms: D004553:Electric Conductivity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008628:Mercury / Q000737:chemistry*; D017669:Mercury Compounds / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D012666:Semiconductors; D012996:Solutions
chemical_list: D017669:Mercury Compounds; D012996:Solutions; D008628:Mercury; C034211:cinnabar