Transport mechanism of self-assembled D-σ-A-thiol monolayers in metal-molecule-metal structure

被引：5

作者：

Kim, DH ^{[1
]}

Lee, H ^{[1
]}

Zyoung, T ^{[1
]}

机构：

[1] Elect & Telecommun Res Inst, Future Technol Res Div, Taejon 305350, South Korea

来源：

SYNTHETIC METALS | 2005年 / 152卷 / 1-3期

关键词：

self-assembly using surface chemistry; organic semiconductor based on conjugated molecules; Heterojunctions; NEGATIVE DIFFERENTIAL RESISTANCE; ELECTRICAL RECTIFICATION;

D O I：

10.1016/j.synthmet.2005.07.160

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transport mechanism of rectifying D-sigma-A-SAc molecule in the structure of vertical metal-molecule-metal (MMM) has been investigated by using variable temperature measurement. We successfully synthesized a novel D-alpha-A-SAc molecule and fabricated the molecular rectifying array device by using self-assembly technique. The results of variable temperature measurements suggest that electron injection in the interface between electron donor molecule and Ti/Au electrode is dominated by a thermal emission with a barrier height of around 0.29 eV while carrier injection between thiolated A-sigma-D molecule and gold electrode is dominated by tunneling with a barrier height of around 0.8 eV. Therefore, we suggest that the origin of rectification comes from energy differences of two interfacial barriers in MMM device.

引用

页码：293 / 296

页数：4

共 20 条

[1] CATION-TRANSPORT THROUGH LIQUID MEMBRANES FACILITATED BY CROWN ETHER-MODIFIED POLY(IMINOETHYLENE)S [J].

ANZAI, J ;

SAKATA, Y ;

SUZUKI, Y ;

UENO, A ;

OSA, T .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1983, 56 (08) :2541-2542

[2] Molecular rectification with M|(D-σ-A LB film)|M junctions [J].

Brady, AC ;

Hodder, B ;

Martin, AS ;

Sambles, JR ;

Ewels, CP ;

Jones, R ;

Briddon, PR ;

Musa, AM ;

Panetta, CAF ;

Mattern, DL .

JOURNAL OF MATERIALS CHEMISTRY, 1999, 9 (09) :2271-2275

[3] Room-temperature negative differential resistance in nanoscale molecular junctions [J].

Chen, J ;

Wang, W ;

Reed, MA ;

Rawlett, AM ;

Price, DW ;

Tour, JM .

APPLIED PHYSICS LETTERS, 2000, 77 (08) :1224-1226

[4] Large on-off ratios and negative differential resistance in a molecular electronic device [J].

Chen, J ;

Reed, MA ;

Rawlett, AM ;

Tour, JM .

SCIENCE, 1999, 286 (5444) :1550-1552

[5] PHOTOELECTRON-SPECTRA OF POLYNUCLEAR AROMATICS .6. APPLICATIONS TO STRUCTURAL ELUCIDATION - CIRCUMANTHRACENE [J].

CLAR, E ;

ROBERTSON, JM ;

SCHLOGL, R ;

SCHMIDT, W .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (06) :1320-1328

[6] A [2]catenane-based solid state electronically reconfigurable switch [J].

Collier, CP ;

Mattersteig, G ;

Wong, EW ;

Luo, Y ;

Beverly, K ;

Sampaio, J ;

Raymo, FM ;

Stoddart, JF ;

Heath, JR .

SCIENCE, 2000, 289 (5482) :1172-1175

[7] Electronically configurable molecular-based logic gates [J].

Collier, CP ;

Wong, EW ;

Belohradsky, M ;

Raymo, FM ;

Stoddart, JF ;

Kuekes, PJ ;

Williams, RS ;

Heath, JR .

SCIENCE, 1999, 285 (5426) :391-394

[8] Self-assembled molecular rectifiers [J].

Dhirani, A ;

Lin, PH ;

GuyotSionnest, P ;

Zehner, RW ;

Sita, LR .

JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (12) :5249-5253

[9] Carrier injection from gold electrodes into thioacetyl-end-functionalized poly(para-phenyleneethynylene)s -: art. no. 165207 [J].

Hu, WP ;

Nakashima, H ;

Furukawa, K ;

Kashimura, Y ;

Ajito, K ;

Han, C ;

Torimitsu, K .

PHYSICAL REVIEW B, 2004, 69 (16) :165207-1

[10] Metal-molecule contacts and charge transport across monomolecular layers: Measurement and theory [J].

Kushmerick, JG ;

Holt, DB ;

Yang, JC ;

Naciri, J ;

Moore, MH ;

Shashidhar, R .

PHYSICAL REVIEW LETTERS, 2002, 89 (08)

← 1 2 →