取代苯基硫脲在Au表面自组装单分子膜的AFM观察  

AFM Observation of Self Assembled Monolayers of Substituted Phenylthiourea on Au

作　　者：邓文礼[1] 白春礼[1] 方晔[1] 王乃新[1] 杨大本[1] 

机构地区：[1]中国科学院化学研究所,电子科技大学材料科学与工程系

出　　处：《电子显微学报》1997年第6期700-702,共3页Journal of Chinese Electron Microscopy Society

摘　　要：采用自组装（ＳＡ）技术制备了对甲苯基硫脲、对氯苯基硫脲和２，４，６－三溴苯基硫脲在Ａｕ表面的自组装单分子膜（ＳＡＭｓ）。在Ａｕ－溶液界面，硫脲Ｓ原子与Ａｕ相互作用形成Ａｕ—Ｓ键诱导吸附分子形成取向有序排列的单分子膜。用原子力显微镜（ＡＦＭ）对单分子膜进行了直接观察，ＡＦＭ所获得的结构信息与椭圆偏振测量、接触角测量和Ｘ－射线光电子能谱（ＸＰＳ）分析结果一致。Self assembled monolayers(SAMs) of p methylphenylthiourea,p chlorophenylthiourea and 2,4,6-tribromophenylthiourea were prepared by self assembly technique.Au—S bond formed by the interaction between sulfur atom and gold at interface of gold solution,which induce molecules form oriented and ordered monolayers.The SAMs were directly observed with atomic force microscope(AFM).Results obtained by AFM are consistent with that of ellipsometry,contact angle measurement and X ray photoelectron spectrometry(XPS).

关 键 词：对甲苯基硫脲 对氯苯基硫脲 自组装单分子膜 AFM 

分 类 号：Q6－33[生物学—生物物理学]