Electron transport through a self-assembled monolayer of thiol-end-functionalized tetraphenylporphines and metal tetraphenylporphines

doi:10.1021/la0520511

CORC > 化学研究所 > 中国科学院化学研究所

	Electron transport through a self-assembled monolayer of thiol-end-functionalized tetraphenylporphines and metal tetraphenylporphines
	Lu, XQ ; Li, MR ; Yang, CH ; Zhang, LM ; Li, YF ; Jiang, L ; Li, HX ; Jiang, L ; Liu, CM ; Hu, WP
刊名	LANGMUIR
	2006-03-28
卷号	22 期号:7 页码:3035-3039
ISSN号	0743-7463
DOI	10.1021/la0520511
英文摘要	The monolayers of several thiol-end-functionalized tetraphenylphophines (SH-TPP) and metal tetraphenylporphines (SH-MTPP) were self-assembled on gold surfaces and identified by cyclic voltammetry (CV). electrochemical impedance spectroscopy, scanning electrochemical microscopy, and the contact angle. The CV peaks of the [Fe(CN)(6)](3-)/[Fe(CN)(6)](4-) Couple were used to identify the efficiency of electrons transferring through the self-assembled monolayer (SAM). The results Suggested that SH-TPP and SH-MTPP could form high-quality SAMs on gold surfaces. The SAMs blocked electron transport from the gold electrode to solution. When the length of the thiol-end-link spacer (alkyl group) increased, the electron transport ability of the SAM decreased because of the increased insulator properties of the alkyl chain. With the insertion of metallic ions, the electron transport ability of the SAM of SH-MTPP increased compared to that of the SAM of SH-TPP which was probably due to the fact that (i) the insertion of metallic ions changed the molecular structure and the molecular structure of SH-MTPP played an important role in electron transport through the SAM and (ii) the insertion of metallic ions increased the electron tunneling probability through the monolayer.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000236843300023
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/58339]
专题	中国科学院化学研究所
通讯作者	Lu, XQ
作者单位	1.NW Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China 2.Chinese Acad Sci, Lab Organ Solids, Inst Chem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Lu, XQ,Li, MR,Yang, CH,et al. Electron transport through a self-assembled monolayer of thiol-end-functionalized tetraphenylporphines and metal tetraphenylporphines[J]. LANGMUIR,2006,22(7):3035-3039.
APA	Lu, XQ.,Li, MR.,Yang, CH.,Zhang, LM.,Li, YF.,...&Hu, WP.(2006).Electron transport through a self-assembled monolayer of thiol-end-functionalized tetraphenylporphines and metal tetraphenylporphines.LANGMUIR,22(7),3035-3039.
MLA	Lu, XQ,et al."Electron transport through a self-assembled monolayer of thiol-end-functionalized tetraphenylporphines and metal tetraphenylporphines".LANGMUIR 22.7(2006):3035-3039.