title: Electronic characteristics of Au-mercaptohexadecanoic acid-Au junction in a capillary.
abstract: The electrical property of a self-assembled monolayer (SAM) of mercaptohexadecanoic acid (HS-C15H30-COOH) has been investigated with a tunneling junction confined in a capillary. This capillary method can shun the interference of vacuum gap. The contact area can be determined according to the diameter of capillary. The nonlinear current-voltage curve and dl/dV curve are measured in the potential range of +/-0.8 V. The slight asymmetry of I-V curve and dl/dV curve is attributed to the different coupling between the metal and the end-groups of molecule. This method will supply a simple way to measure the property of single molecules and monolayers.
authors.affiliation: Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
authors.forename: Hui-Juan
authors.initials: HJ
authors.lastname: Yan
authors.forename: Ling-Ling
authors.initials: LL
authors.lastname: Ren
authors.forename: Xiao-Lin
authors.initials: XL
authors.lastname: Fan
authors.forename: Han-Pu
authors.initials: HP
authors.lastname: Liang
authors.forename: Jin-Song
authors.initials: JS
authors.lastname: Hu
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Wan
authors.forename: Chen
authors.initials: C
authors.lastname: Wang
authors.forename: Chun-Li
authors.initials: CL
authors.lastname: Bai
mesh_terms: D002197:Capillary Action; D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods*; D004566:Electrodes; D004581:Electronics; D006046:Gold / Q000737:chemistry*; D008422:Materials Testing; D049329:Nanostructures / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D010169:Palmitic Acids / Q000737:chemistry*; D010316:Particle Size; D012666:Semiconductors; D013499:Surface Properties
chemical_list: C450319:16-mercaptohexadecanoic acid; D010169:Palmitic Acids; D006046:Gold