TY  - JOUR
AU  - Liu, Yaqing
AU  - Wolfrum, Bernhard
AU  - Hüske, Martin
AU  - Offenhäusser, Andreas
AU  - Wang, Erkang
AU  - Mayer, Dirk
TI  - Transistor Functions Based on Electrochemical Rectification
JO  - Angewandte Chemie / International edition
VL  - 52
IS  - 14
SN  - 1433-7851
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2013-04550
SP  - 4029 - 4032
PY  - 2013
AB  - Electronic elements built from organic semiconductors, such as molecular transistors, have significant potential for technical innovations and mass use owing to their flexible mechanical properties, cost-effective processability, and tuneable optical properties.1 Self-assembled monolayer field-effect transistors (SAMFET) are among the latest developments of novel microelectronic devices.2 In SAMFETs, charge carriers laterally pass through a molecular layer (parallel to substrate) and exhibit transistor behavior, which can be modulated by an electrostatic gate. The charge transport properties of the SAMFETs are affected by the length of the channel.3, 4 Herein, we present a novel chip-based molecular transistor concept, which is based on charge-transfer processes across a monolayer of molecules perpendicular to the sample surface plane. To this end, redox active molecules are adsorbed to a collector electrode (CE) acting as electron-transfer mediators. A two-step charge transfer between solid interdigitated array electrodes (IDA), charge transfer mediator, and liquid-phase redox probe yields a unidirectional current response. An adsorbate-free generator electrode (GE) can be used to modulate the unidirectional currents, resulting in a transistor-like behavior. The electrochemical transistor-like system exhibits high current outputs at a low-voltage operation, high on/off switching current ratios, and is operated as a 24-bit code generator.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000316915500043
C6  - pmid:23460501
DO  - DOI:10.1002/anie.201207778
UR  - https://juser.fz-juelich.de/record/138419
ER  -