Incorporating Azo-group-functionalized Molecular-Junctions between Metal Nanoelectrodes to produce High-Rectification-Memory Nanodevices

MRS Proceedings ◽

10.1557/proc-1096-ff03-01 ◽

2008 ◽

Vol 1096 ◽

Author(s):

Kabeer Jasuja ◽

Vikas Berry

Keyword(s):

Gold Nanoparticles ◽

Memory Device ◽

Molecular Junctions ◽

Assembly Process ◽

Molecular Memory ◽

Molecular Systems ◽

Electrostatic Assembly ◽

Azo Group ◽

Memory States ◽

Oppositely Charged

AbstractThis report presents the functioning of a molecular memory device with azo-group-functionalized molecular-junctions between metal nanoelectrodes. These junctions are fabricated by a novel electrostatic-assembly process to incorporate azo-group containing polyelectrolyte (AP) between oppositely charged gold nanoparticles (GNP), functioning as nanoelectrodes. The device exhibits a bistable electronic memory effect induced by charge-transfer between AP and GNP, which can be controlled by photo-excitation of the AP. The ON and OFF memory states were found to have a rectification in the range of ∼5000 – 10000. This study will open avenues for development of next-generation molecular systems and devices to produce novel optoelectronic properties.

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Synthesis, characterization and surface enhanced Raman spectroscopy study of a new family of different substituted cruciform molecular systems deposited on gold nanoparticles

Journal of Raman Spectroscopy ◽

10.1002/jrs.6082 ◽

2021 ◽

Author(s):

Rodrigo Sánchez‐González ◽

Elizabeth Imbarack ◽

Constanza Suazo ◽

Juan Pablo Soto ◽

Patricio Leyton ◽

...

Keyword(s):

Gold Nanoparticles ◽

Raman Spectroscopy ◽

Surface Enhanced Raman Spectroscopy ◽

Spectroscopy Study ◽

Molecular Systems ◽

New Family ◽

Surface Enhanced ◽

Surface Enhanced Raman

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HYBRID SILICON-MOLECULAR ELECTRONICS

Modern Physics Letters B ◽

10.1142/s0217984908016054 ◽

2008 ◽

Vol 22 (12) ◽

pp. 1183-1202 ◽

Cited By ~ 4

Author(s):

QILIANG LI

Keyword(s):

Molecular Electronics ◽

New Technologies ◽

Electronic System ◽

Cmos Technology ◽

Smooth Transition ◽

Molecular Memory ◽

Molecular Systems ◽

Redox Active ◽

Hybrid Silicon ◽

Intensive Investigation

As CMOS technology extends beyond the current technology node, many challenges to conventional MOSFET were raised. Non-classical CMOS to extend and fundamentally new technologies to replace current CMOS technology are under intensive investigation to meet these challenges. The approach of hybrid silicon/molecular electronics is to provide a smooth transition technology by integrating molecular intrinsic scalability and diverse properties with the vast infrastructure of traditional MOS technology. Here we discuss: (1) the integration of redox-active molecules into Si -based structures, (2) characterization and modeling of the properties of these Si /molecular systems, (3) single and multiple states of Si /molecular memory, and (4) applications based on hybrid Si /molecular electronic system.

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Tunnelling current recognition through core–satellite gold nanoparticles for ultrasensitive detection of copper ions

Chemical Communications ◽

10.1039/c4cc09451d ◽

2015 ◽

Vol 51 (14) ◽

pp. 2921-2924 ◽

Cited By ~ 14

Author(s):

Alireza Foroushani ◽

Yuanchao Zhang ◽

Da Li ◽

Motilal Mathesh ◽

Hongbin Wang ◽

...

Keyword(s):

Gold Nanoparticles ◽

Copper Ions ◽

Molecular Junctions ◽

Ultrasensitive Detection ◽

Tunnelling Current

The addition of copper ions induces the formation of GNP/l-cysteine/Cu2+/l-cysteine/GNP molecular junctions and generates a significant decrease in the resistance through the networks.

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Electrostatic assembly of gold nanoparticles on black phosphorus nanosheets for electrochemical aptasensing of patulin

Microchimica Acta ◽

10.1007/s00604-019-3339-3 ◽

2019 ◽

Vol 186 (4) ◽

Cited By ~ 19

Author(s):

Jinqiong Xu ◽

Xiujuan Qiao ◽

Yuan Wang ◽

Qinglin Sheng ◽

Tianli Yue ◽

...

Keyword(s):

Gold Nanoparticles ◽

Black Phosphorus ◽

Electrostatic Assembly

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Organic Memory Devices Using C60 and Insulating Polymer

MRS Proceedings ◽

10.1557/proc-830-d7.2 ◽

2004 ◽

Vol 830 ◽

Cited By ~ 5

Author(s):

Alokik Kanwal ◽

Shashi Paul ◽

Manish Chhowalla

Keyword(s):

Electron Microscopy ◽

Memory Device ◽

Molecular Memory ◽

Blend Films ◽

Force Microscopy ◽

Atomic Force ◽

Organic Memory Devices ◽

Large Hysteresis ◽

Current Voltage ◽

Scanning Electron

ABSTRACTIn this paper, we describe an all organic molecular memory device that combines the advantages of molecular and organic electronics. We accomplish this by combining C60 molecules with poly(4-vinylphenol) (PVP) and co-dissolving them in iso-propanol. The current-voltage measurements show a large hysteresis in the blend devices, in contrast to pure PVP devices. The thin blend films have been thoroughly characterized using Raman spectroscopy, atomic force microscopy and scanning electron microscopy.

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Deposition of Functionalised Gold Nanoparticles by the Layer-by-Layer Electrostatic Technique

MRS Proceedings ◽

10.1557/proc-789-n9.12 ◽

2003 ◽

Vol 789 ◽

Author(s):

S. Paul ◽

M. Palumbo ◽

M. C. Petty ◽

N. Cant ◽

S. D. Evans

Keyword(s):

Gold Nanoparticles ◽

Silicon Substrate ◽

Coulomb Blockade ◽

Quantum Mechanical ◽

Layer By Layer ◽

Force Microscopy ◽

Atomic Force ◽

Solid Substrates ◽

Oppositely Charged ◽

Positively Charged

ABSTRACTIntensive research is currently underway to exploit the intriguing optical and electronic behaviour of nano-sized particles. The basis of the unique properties of these particles is the smallness of their size; dimensions on the nanometre scale can result in interesting quantum mechanical phenomena, such as Coulomb blockade. There are currently a number of ways by which the nanoparticles can be deposited onto solid substrates. Here, we report on the use of the layer-by-layer electrostatic method, which has shown much promise in the context of deposition of thin films of certain organic materials. In this technique, layers of oppositely charged materials are generated by dipping an appropriate substrate into solutions of polyelectrolytes. For example, the polybases poly(ethyleneimine) (PEI), when adsorbed on a substrate, produce a positively charged surface. We have deposited carboxylic acid (-COOH) derivatised gold nanoparticles onto a PEI-coated silicon substrate and an amine funtionalised silicon substrate. The distribution of the gold nanoparticles was compared using atomic force microscopy.

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