Development of a Photoresponsive and Electrostrictive Material from P(VDF-TrFE-CFE) and TiOPc Composite

2014 ◽  
Vol 1659 ◽  
pp. 69-74
Author(s):  
Wen-Chi Chang ◽  
Po-Han Chen ◽  
Chih-Ting Lin ◽  
An-Bang Wang ◽  
Chih-Kung Lee
Keyword(s):  
Composite Material ◽  
Fluid Flow ◽  
Capillary Tube ◽  
Optical Control ◽  
Light Illumination ◽  
Responsive Materials ◽  
Electrostrictive Material ◽  
Mechanical Devices ◽  
White Light Illumination ◽  
Dielectric Polymer

ABSTRACTOptical control is a reversible and convenient technology, able to be measured in real-time, which makes it excellent for application to microfluidic, biomechanical, and electro-mechanical devices. These advantages are especially attractive for photo-responsive materials. In this study, we developed a new photo-responsive, electrostrictive material from a composite material made by mixing a dielectric polymer P(VDF-TrFE-CFE) and an organic photoconductive material TiOPc. The photo-responsibility of the material has been validated by corresponding actuators. We found that under white light illumination, deformation will increase which can be attributed to a decrease in the TiOPc impedance. We identified that the optimal TiOPc concentration for actuator applications is 10% P(VDF-TrFE-CFE)/TiOPc. Moreover, controlling the fluid flow within the capillary tube through light illumination also validated the photo-responsive actuator. Our results show that the mechanism and the photo-responsive material can be used to pursue further study on light controlling microfluidic, and related electro-mechanical devices.

Resistive switching effect enhanced by light irradiation in C/BaTiO3/C memory structure

2019 ◽  
Vol 12 (02) ◽  
pp. 1950010
Author(s):  
Liangchen Wu ◽  
Peng Chen
Keyword(s):  
Resistive Switching ◽  
White Light ◽  
Memory Device ◽  
Light Irradiation ◽  
Optical Control ◽  
Light Illumination ◽  
Non Volatile Memory ◽  
Power Densities ◽  
White Light Illumination ◽  
Resistive Switching Effect

The Ta/[C/BaTiO3/C]/Si device was obtained. The resistive switching (RS) behaviors of the Ta/[C/BaTiO3/C]/Si device are studied in the dark and under white-light illumination with various power densities. The results show that the device displays bipolar RS effect, which can be modulated by the white light. And the RS memory device shows biggish resistance ratio, which is more than 105 under white-light irradiation with a power density of 40[Formula: see text]mW/cm2, and the ratio can stabilize at nearly 71 cycles. This work is helpful for the optical control non-volatile memory.

Effect of Illumination on Organic Polymer Thin-Film Transistors

2003 ◽  
Vol 771 ◽  
Author(s):  
Michael C. Hamilton ◽  
Sandrine Martin ◽  
Jerzy Kanicki
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Drain Current ◽  
Charge Carriers ◽  
Electrical Performance ◽  
Organic Polymer ◽  
Light Illumination ◽  
Polymer Thin Film ◽  
Channel Region ◽  
White Light Illumination

AbstractWe have investigated the effects of white-light illumination on the electrical performance of organic polymer thin-film transistors (OP-TFTs). The OFF-state drain current is significantly increased, while the drain current in the strong accumulation regime is relatively unaffected. At the same time, the threshold voltage is decreased and the subthreshold slope is increased, while the field-effect mobility of the charge carriers is not affected. The observed effects are explained in terms of the photogeneration of free charge carriers in the channel region due to the absorbed photons.

Full field of view super-resolution imaging based on two static gratings and white light illumination

2008 ◽  
Vol 47 (17) ◽  
pp. 3080 ◽  
Author(s):  
Javier García ◽  
Vicente Micó ◽  
Dan Cojoc ◽  
Zeev Zalevsky
Keyword(s):  
White Light ◽  
Super Resolution ◽  
Field Of View ◽  
Light Illumination ◽  
Full Field ◽  
Resolution Imaging ◽  
White Light Illumination

New Interferometric Methods for Group-Delay Measurement Using White-Light Illumination

1996 ◽  
pp. 607-611
Author(s):  
A. P. Kovács ◽  
G. Kurdi ◽  
K. Osvay ◽  
R. Szipöcs ◽  
J. Hebling ◽  
...  
Keyword(s):  
White Light ◽  
Group Delay ◽  
Light Illumination ◽  
Delay Measurement ◽  
White Light Illumination

scholarly journals Graphene Channels Interfaced with Quantum Dots in Field Effect Transistors: Electrical and Photo-Induced Effects

MRS Advances ◽  
2016 ◽  
Vol 1 (22) ◽  
pp. 1597-1603
Author(s):  
Xin Miao ◽  
Samarth Trivedi ◽  
Haim Grebel
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Chemical Vapor ◽  
Hole Array ◽  
Light Illumination ◽  
Anodized Aluminum ◽  
Transistor Channel ◽  
Anodized Aluminum Oxide ◽  
Hexagonal Hole ◽  
White Light Illumination

ABSTRACTGraphene-based field effect transistors (GFETs) were assessed when interfaced with well separated and precisely placed core/shell CdSe/ZnS semiconductor quantum dot (QD) arrays. The QDs were imbedded in a hexagonal hole-array, which was formed in a layer of anodized aluminum oxide on Si/SiO2substrates. Graphene (single, or two layers), grown by chemical vapor deposition (CVD) on Cu foils, was transferred and placed on top of the QDs imbedded films and served as the transistor channel. Electrical characteristics under white-light illumination at various biasing conditions revealed that the photo current was decreasing upon increasing biasing. The device's photoluminescence (PL) as a function of both the drain-source and gate-source potentials also reduced as a function of the potential biases. We observed two maxima in the PL data while tilting the sample with respect to the incident laser beam. We attributed it to the optimal coupling between the incident and the emission wavelengths to resonating surface modes.

Two-Phase Fluid Flow Characterizations in a Tight Rock: A Fractal Bundle of the Capillary Tube Model

2019 ◽  
Vol 58 (45) ◽  
pp. 20806-20814 ◽  
Author(s):  
Ying Li ◽  
Haitao Li ◽  
Shengnan Chen ◽  
Qirui Ma ◽  
Chang Liu
Keyword(s):  
Fluid Flow ◽  
Capillary Tube ◽  
Tube Model ◽  
Two Phase ◽  
Capillary Tube Model ◽  
Phase Fluid

The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods

2020 ◽  
Vol 8 (9) ◽  
pp. 3000-3009 ◽  
Author(s):  
Chang Feng ◽  
Zhuoyuan Chen ◽  
Jiangping Jing ◽  
Jian Hou
Keyword(s):  
White Light ◽  
Degradation Mechanism ◽  
Zno Nanorods ◽  
Phenol Degradation ◽  
Light Illumination ◽  
White Light Illumination

ZnO/Ag/Ag2O accelerates phenol degradation through different intermediate processes under white light illumination.

Facile one-pot synthesis of long-term thermally stable CDs@AlOOH toward white-light illumination

2019 ◽  
Vol 7 (46) ◽  
pp. 14717-14724 ◽  
Author(s):  
Jiaming Wu ◽  
Shuxian Wang ◽  
Shuxin Liu ◽  
Shuwei Ma ◽  
Guojian Jing ◽  
...  
Keyword(s):  
Thermal Stability ◽  
White Light ◽  
Low Cost ◽  
Fluorescence Emission ◽  
Light Illumination ◽  
One Pot ◽  
One Pot Synthesis ◽  
One Step ◽  
White Light Illumination

The CDs doped boehmite composite (CDs@AlOOH) is directly achieved through a facile, low-cost and green one-step decomposition route with tunable fluorescence emission and long-term thermal stability.

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