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 Optimization of UHF RFID Five-Slotted Patch Tag Design Using PSO Algorithm for Biomedical Sensing Systems

2020 ◽  
Vol 17 (22) ◽  
pp. 8593
Author(s):  
Ibtissame Bouhassoune ◽  
Abdellah Chehri ◽  
Rachid Saadane ◽  
Khalid Minaoui
Keyword(s):  
Human Body ◽  
Radio Frequency Identification ◽  
Flexible Substrate ◽  
Ground Plane ◽  
Pso Algorithm ◽  
Uhf Rfid ◽  
Biomedical Sensing ◽  
Sensing Applications ◽  
Human Arm ◽  
Frequency Identification

In this paper, a new flexible wearable radio frequency identification (RFID) five-shaped slot patch tag placed on the human arm is designed for ultra-high frequency (UHF) healthcare sensing applications. The compact proposed tag consists of a patch structure provided with five shaped slot radiators and a flexible substrate, which minimize the human body’s impact on the antenna radiation performance. We have optimized our designed tag using the particle swarm optimization (PSO) method with curve fitting within MATLAB to minimize antenna parameters to achieve a good return loss and an attractive radiation performance in the operating band. The PSO-optimized tag’s performance has been examined over the specific placement in some parts of the human body, such as wrist and chest, to evaluate the tag response and enable our tag antenna conception in wearable biomedical sensing applications. Finally, we have tested the robustness of this tag by evaluating its sensitivity as a function of the antenna radiator placement over the ground plane or by shaping the ground plane substrate for the tag’s position from the human body. Our numerical results show an optimal tag size with good matching features and promising read ranges near the human body.

Inductance Investigation of Screen-Printed Radio Frequency Identification Antennas

2015 ◽  
Vol 748 ◽  
pp. 81-84 ◽  
Author(s):  
Ya Ling Li ◽  
Fu Yan Zhao ◽  
Lu Hai Li
Keyword(s):  
Radio Frequency Identification ◽  
Low Cost ◽  
Flexible Substrate ◽  
Core Layer ◽  
Magnetic Core ◽  
Printed Antenna ◽  
Printed Antennas ◽  
Testing Frequency ◽  
Frequency Identification ◽  
Rfid Antennas

Printed antennas fabricated using conductive ink printed on flexible substrate is low-cost and environmental friendly. The inductance and the quality factor are two important parameters for designing RFID antenna and were studied for the printed RFID antennas. The results show that the inductance is not only determined by the size of the designed RFID antenna but also related to the resistance of the printed antenna coils. The inductance increases with the increasing testing frequency, while the Q value decreases with the increasing testing frequency. The soft magnetic ink prepared with γ-Fe2O3 was used to enhance the inductance of the printed antennas with printing technology. The inductance of the printed antenna with the magnetic core layer is increased by 5.7% at 13.56 MHz.

Low-voltage graphene transistors based on self-assembled monolayer nanodielectrics

2012 ◽  
Vol 1451 ◽  
pp. 179-184
Author(s):  
Cecilia Mattevi ◽  
Florian Colléaux ◽  
Hokwon Kim ◽  
Manish Chhowalla ◽  
Thomas D. Anthopoulos
Keyword(s):  
Low Voltage ◽  
Chemical Vapour ◽  
Self Assembled Monolayers ◽  
Operating Voltage ◽  
Self Assembled Monolayer ◽  
Bias Stress ◽  
Operating Stability ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
End Group

ABSTRACTWe demonstrate low operating voltage (<|1.5| V) chemical vapour deposited (CVD) graphene transistors using solution processable organic self-assembled monolayers (SAMs) as nanodielectrics. The transistors show weak extrinsic doping, hysteresis-free operation, low gate-leakage current and good operating stability with bias-stress free characteristics. Most importantly we demonstrate that the Dirac potential can be finely tuned by modifying the molecular end-group of the SAMs without compromising the electrical characteristics of the transistors.

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.

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

A silver self-assembled monolayer-decorated polydimethylsiloxane flexible substrate for in situ SERS detection of low-abundance molecules

2018 ◽  
Vol 49 (9) ◽  
pp. 1469-1477 ◽  
Author(s):  
Hang Zhao ◽  
Wuliji Hasi ◽  
Lin Bao ◽  
Yuping Liu ◽  
Siqingaowa Han ◽  
...  
Keyword(s):  
Flexible Substrate ◽  
Self Assembled Monolayer ◽  
Sers Detection ◽  
Self Assembled

scholarly journals Low operating voltage organic transistors and circuits with anodic titanium oxide and phosphonic acid self-assembled monolayer dielectrics

2017 ◽  
Vol 40 ◽  
pp. 58-64 ◽  
Author(s):  
Hiroaki Jinno ◽  
Tomoyuki Yokota ◽  
Naoji Matsuhisa ◽  
Martin Kaltenbrunner ◽  
Yutaro Tachibana ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Phosphonic Acid ◽  
Organic Transistors ◽  
Operating Voltage ◽  
Self Assembled Monolayer ◽  
Anodic Titanium Oxide ◽  
Self Assembled
Sign in / Sign up

Export Citation Format

Share Document