Current-induced light emission and light-induced current in molecular-tunneling junctions

被引：127

作者：

Galperin, M ^{[1
]}

Nitzan, A ^{[1
]}

机构：

[1] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.95.206802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The interaction of metal-molecule-metal junctions with light is considered within a simple generic model. We show, for the first time, that light-induced current in unbiased junctions can take place when the bridging molecule is characterized by a strong charge-transfer transition. The same model shows current-induced light emission under potential bias that exceeds the molecular excitation energy. Results based on realistic estimates of molecule-lead coupling and molecule-radiation field interaction suggest that both effects should be observable.

引用

页数：4

共 15 条

[1] Theoretical study of photon emission from molecular wires [J].

Buker, J ;

Kirczenow, G .

PHYSICAL REVIEW B, 2002, 66 (24) :1-9

[2]

Datta S, 2005, QUANTUM TRANSPORT AT

[3] MOLECULAR LIGHT-EMISSION INDUCED BY INELASTIC ELECTRON-TUNNELING [J].

FLAXER, E ;

SNEH, O ;

CHESHNOVSKY, O .

SCIENCE, 1993, 262 (5142) :2012-2014

[4]

GALPERIN M, IN PRESS

[5] PHOTON-EMISSION WITH THE SCANNING TUNNELING MICROSCOPE [J].

GIMZEWSKI, JK ;

REIHL, B ;

COOMBS, JH ;

SCHLITTLER, RR .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1988, 72 (04) :497-501

[6]

Haug H., 1996, Quantum Kinetics in Transport and Optics of Semiconductors, DOI DOI 10.1007/978-3-540-73564-9

[7]

Joachim C, 2005, P NATL ACAD SCI USA, V102, P8800, DOI 10.1073/pnas.0504046102

[8] Molecular transport junctions: An introduction [J].

Kagan, CR ;

Ratner, MA .

MRS BULLETIN, 2004, 29 (06) :376-384

[9] Laser controlled molecular switches and transistors [J].

Lehmann, J ;

Camalet, S ;

Kohler, S ;

Hänggi, P .

CHEMICAL PHYSICS LETTERS, 2003, 368 (3-4) :282-288

[10] LANDAUER FORMULA FOR THE CURRENT THROUGH AN INTERACTING ELECTRON REGION [J].

MEIR, Y ;

WINGREEN, NS .

PHYSICAL REVIEW LETTERS, 1992, 68 (16) :2512-2515

← 1 2 →