Key to design functional organic molecules for binary operation with large conductance switching

被引:28
作者
Bandyopadhyay, A [1 ]
Pal, AJ [1 ]
机构
[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, India
关键词
D O I
10.1016/S0009-2614(03)00248-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We have selected a new class of material which shows presence of large conductance switching. The acceptor groups present in the molecules result in low OFF-state current in the devices and hence large ON/OFF ratio of 100,000. The ON-state in the molecules has been due to conjugation restoration via electroreduction. The ON/OFF ratio decreased to 4 in devices based on molecules without any acceptor groups. The devices have undergone 'write-read-erase-read' sequence for hours, showing their applicability in random-access-memory elements. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:86 / 90
页数:5
相关论文
共 9 条
[1]   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
[2]   Conductance switching in single molecules through conformational changes [J].
Donhauser, ZJ ;
Mantooth, BA ;
Kelly, KF ;
Bumm, LA ;
Monnell, JD ;
Stapleton, JJ ;
Price, DW ;
Rawlett, AM ;
Allara, DL ;
Tour, JM ;
Weiss, PS .
SCIENCE, 2001, 292 (5525) :2303-2307
[3]   SWITCHING AND MEMORY PHENOMENA IN ANTHRACENE THIN-FILMS [J].
ELSHARKAWI, AR ;
KAO, KC .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1977, 38 (01) :95-96
[4]  
HOMSEY G, 2000, UNPUB MOL ELECT 0508
[5]   Conductance switching phenomena and H-like aggregates in squarylium-dye Langmuir-Blodgett films [J].
Kushida, M ;
Inomata, H ;
Tanaka, Y ;
Harada, K ;
Saito, K ;
Sugita, K .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2002, 41 (3A) :L281-L283
[6]   Organic electrical bistable devices and rewritable memory cells [J].
Ma, LP ;
Liu, J ;
Yang, Y .
APPLIED PHYSICS LETTERS, 2002, 80 (16) :2997-2999
[7]   REVERSIBLE ELECTRICAL SWITCHING PHENOMENA IN DISORDERED STRUCTURES [J].
OVSHINSKY, SR .
PHYSICAL REVIEW LETTERS, 1968, 21 (20) :1450-+
[8]   Computing with molecules [J].
Reed, MA ;
Tour, JM .
SCIENTIFIC AMERICAN, 2000, 282 (06) :86-93
[9]   Analysis of a dinitro-based molecular device [J].
Seminario, JM ;
Zacarias, AG ;
Derosa, PA .
JOURNAL OF CHEMICAL PHYSICS, 2002, 116 (04) :1671-1683