Arrays of high quality SAM-based junctions and their application in molecular diode based logic

Nanoscale ◽  
2015 ◽  
Vol 7 (46) ◽  
pp. 19547-19556 ◽  
Author(s):  
Albert Wan ◽  
C. S. Suchand Sangeeth ◽  
Lejia Wang ◽  
Li Yuan ◽  
Li Jiang ◽  
...  
Keyword(s):  
Logic Gates ◽  
Electrical Stability ◽  
Self Assembled Monolayer ◽  
High Quality ◽  
Molecular Diodes ◽  
Molecular Diode ◽  
Self Assembled

This paper describes a method to generate arrays of self-assembled monolayer based junctions with good yields in working junctions (∼80%) and high electrical stability. We formed arrays of molecular diodes which were used to construct AND and OR logic gates.

scholarly journals UV/Ozone-Assisted Rapid Formation of High-Quality Tribological Self-Assembled Monolayer

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 762
Author(s):  
Zhitao Fan ◽  
Chao Zhi ◽  
Lei Wu ◽  
Pei Zhang ◽  
Chengqiang Feng ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Glass Surface ◽  
Composition Analysis ◽  
Self Assembled Monolayer ◽  
High Quality ◽  
Atomic Force ◽  
Self Assembled ◽  
Uv Ozone ◽  
Wear Tests ◽  
Friction And Wear Tests

UV/ozone (UVO)-assisted formation of self-assembled monolayer (SAM) of 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDS) was prepared on a glass surface. The effect of UVO exposure time on surface roughness and hydrophilicity was investigated through goniometer and atomic force microscope (AFM), and deposition time-dependent SAM quality was detected by AFM and X-ray photoelectron spectroscopy (XPS). The glass surface became smooth with UVO radiation after 10 min, and the hydrophilicity was also improved after the treatment. Confirmed by surface topography detection and chemical composition analysis, a high-quality SAM can be formed rapidly on glass with 10 min UVO treatment followed by 2 h deposition in PFDS solution. Excellent tribological performances of SAM coated with UVO treatment glass were demonstrated by friction and wear tests on AFM compared to film-deposited glass without UVO treatment and original glass. The study sheds a light on preparing high-quality lubrication and antiwear self-assembled films on the surface of engineering materials.

Self-Assembly and Electrochemical Characterization of Ferrocene-based Molecular Diodes for Solar Rectenna Device

MRS Advances ◽  
2020 ◽  
Vol 5 (61) ◽  
pp. 3185-3194
Author(s):  
Vikas Jangid ◽  
Damien Brunel ◽  
Chrystelle Lebouin ◽  
Clement A. Reynaud ◽  
Esteban Sanchez-Adaime ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electromagnetic Waves ◽  
Terahertz Frequency ◽  
Self Assembled Monolayer ◽  
Molecular Diodes ◽  
Antenna Miniaturization ◽  
Molecular Diode ◽  
Dc Power ◽  
Absorption Of Light

AbstractBailey [1] proposed in 1972 that a nanoscale antenna coupled with a rectifier can harvest broad range electromagnetic radiation from visible to infrared. To incorporate this concept in practical systems, there were two main technological bottle necks that have to be overcome: antenna miniaturization and rectification in terahertz frequency. With current technology and equipment [2], we are proposing a third-generation rectenna-based solar cells composed of Ag nanocubes to harvest ambient visible and infrared electromagnetic waves coupled to ferrocene-based molecular diodes [3] capable of switching at terahertz frequency to convert this received energy into DC power. The function of these molecular diodes is two-fold: they rectify and provide an uniform nano-cavity between silver top electrode and gold bottom electrode. These nano-cavities are capable to support gap plasmon modes and absorption of light in both narrow and broad range, depending on the nanocube size and dispersion. A self-assembled monolayer (SAM) of ferrocene alkane-dithiol is deposited in this nano-cavity making it possible to form molecular sized nano-gaps well below the usual 3 nm, and this structure is robust and reproducible [4]. This SAM can be deposited directly or via a two-step click chemistry on the surface to have along with control over the orientation of the molecule. By tuning the orientation and position of the ferrocene moiety, the direction of rectification can be controlled [3]. Hence, the SAM does not only act as a rectifier but also provides mechanical support combining photonic and electrical properties. This paper focuses on studying the electrical and supramolecular structure of these molecular diode based SAMs.

Surface Energy Characterized Self-Assembled Monolayer for Improving Electrical Stability of IGZO Thin Film Transistor

2020 ◽  
Vol MA2020-02 (28) ◽  
pp. 1954-1954
Author(s):  
Sung-Eun Lee ◽  
Hyun-Jae Na ◽  
Jintaek Park ◽  
Eun Goo Lee ◽  
Kyungho Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Surface Energy ◽  
Thin Film Transistor ◽  
Electrical Stability ◽  
Self Assembled Monolayer ◽  
Self Assembled

High Rectification Ratio in Polymer Diode Rectifier through Interface Engineering with Self-Assembled Monolayer

2021 ◽  
Vol 2 (4) ◽  
pp. 445-453
Author(s):  
Khaoula Ferchichi ◽  
Sebastien Pecqueur ◽  
David Guerin ◽  
Ramzi Bourguiga ◽  
Kamal Lmimouni
Keyword(s):  
Radio Frequency Identification ◽  
Flexible Substrate ◽  
Operating Voltage ◽  
Rectification Ratio ◽  
Electrical Stability ◽  
Self Assembled Monolayer ◽  
A Value ◽  
Harvesting Systems ◽  
Frequency Identification ◽  
Self Assembled

In this work, we demonstrate P3HT (poly 3-hexylthiophene) organic rectifier diode both in rigid and flexible substrate with a rectification ratio up to 106. This performance has been achieved through tuning the work function of gold with a self-assembled monolayer of 2,3,4,5,6-pentafluorobenzenethiol (PFBT). The diode fabricated on flexible paper substrate shows a very good electrical stability under bending tests and the frequency response is estimated at more than 20 MHz which is sufficient for radio frequency identification (RFID) applications. It is also shown that the low operating voltage of this diode can be a real advantage for use in a rectenna for energy harvesting systems. Simulations of the diode structure show that it can be used at GSM and Wi-Fi frequencies if the diode capacitance is reduced to a few pF and its series resistance to a few hundred ohms. Under these conditions, the DC voltages generated by the rectenna can reach a value up to 1 V.

scholarly journals Model of self assembled monolayer based molecular diodes made of ferrocenyl-alkanethiols

2017 ◽  
Vol 121 (11) ◽  
pp. 115503 ◽  
Author(s):  
David Duche ◽  
Ujwol Planchoke ◽  
Florian-Xuan Dang ◽  
Judikael Le Rouzo ◽  
Marc Bescond ◽  
...  
Keyword(s):  
Self Assembled Monolayer ◽  
Molecular Diodes ◽  
Self Assembled

Self-Assembled Fluid Phase Floating Membranes with Tuneable Water Interlayers

2019 ◽  
Author(s):  
Luke Clifton ◽  
Nicoló Paracini ◽  
Arwel V. Hughes ◽  
Jeremy H. Lakey ◽  
Nina-Juliane Seinke ◽  
...  
Keyword(s):  
Fluid Phase ◽  
Interlayer Thickness ◽  
Supported Bilayers ◽  
Self Assembled Monolayer ◽  
High Coverage ◽  
Nano Technology ◽  
Surface Distance ◽  
Potential Applications ◽  
Self Assembled ◽  
Coated Surfaces

<p>We present a reliable method for the fabrication of fluid phase unsaturated bilayers which are readily self-assembled on charged self-assembled monolayer (SAM) surfaces producing high coverage floating supported bilayers where the membrane to surface distance could be controlled with nanometer precision. Vesicle fusion was used to deposit the bilayers onto anionic SAM coated surfaces. Upon assembly the bilayer to SAM solution interlayer thickness was 7-10 Å with evidence suggesting that this layer was present due to SAM hydration repulsion of the bilayer from the surface. This distance could be increased using low concentrations of salts which caused the interlayer thickness to enlarge to ~33 Å. Reducing the salt concentration resulted in a return to a shorter bilayer to surface distance. These accessible and controllable membrane models are well suited to a range of potential applications in biophysical studies, bio-sensors and Nano-technology.</p><br>

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