scholarly journals A facile synthesis of Cr doped WO3 nanocomposites and its effect in enhanced current-voltage and impedance characteristics of thin films

2020 ◽  
Vol 10 (4) ◽  
pp. 481-485
Author(s):  
Vinayak Adimule ◽  
Debdas Bowmik ◽  
H. J. Adarsha
Keyword(s):  
Thin Films ◽  
Facile Synthesis ◽  
Impedance Characteristics ◽  
Current Voltage

Electrical Bistability in Zinc Oxide Nanoparticle-Polymer Composites

2007 ◽  
Vol 7 (12) ◽  
pp. 4534-4539 ◽  
Author(s):  
Basudev Pradhan ◽  
Swarup K. Majee ◽  
Sudip K. Batabyal ◽  
Amlan J. Pal
Keyword(s):  
Thin Films ◽  
Random Access ◽  
Random Access Memory ◽  
Transport Mechanisms ◽  
Access Memory ◽  
Electrical Bistability ◽  
Impedance Characteristics ◽  
Current Voltage ◽  
Oxide Nanoparticle ◽  
Memory Applications

The article reports observed electrical bistability in thin films of ZnO nanoparticles embedded in an insulating polymer matrix. From the current–voltage and impedance characteristics, they studied transport mechanisms involved in the two conducting-states. The electrical bistability in such films has been associated with a memory phenomenon. The bistability, which is reversible in nature, led to read-only and random-access memory applications in the devices based on such nanoparticles.

scholarly journals 7-Alkoxy-appended coumarin derivatives: synthesis, photo-physical properties, aggregation behaviours and current–voltage (I–V) characteristic studies on thin films

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10212-10223
Author(s):  
Abhijit Rudra Paul ◽  
Bapi Dey ◽  
Sudip Suklabaidya ◽  
Syed Arshad Hussain ◽  
Swapan Majumdar
Keyword(s):  
Thin Films ◽  
Carboxylic Acid ◽  
Physical Properties ◽  
Chemical Characteristics ◽  
Coumarin Derivatives ◽  
Design Synthesis ◽  
Electrical Switching ◽  
Physico Chemical ◽  
Current Voltage

In this article, we demonstrate the design, synthesis and physico-chemical characteristics, including electrical switching behaviours of long alkoxy-appended coumarin carboxylate/carboxylic acid in thin films.

Preparation and Electrical Characteristics of (100), (111), and Randomly Oriented PZT Thin Films

1994 ◽  
Vol 361 ◽  
Author(s):  
Chang Jung Kim ◽  
Dae Sung Yoon ◽  
Joon Sung Lee ◽  
Chaun Gi Choi ◽  
Won Jong Lee ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Hysteresis Loops ◽  
Test System ◽  
Electrical Characteristics ◽  
Pzt Thin Films ◽  
Pole Figures ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Drying Conditions

ABSTRACTThe (100), (111) and randomly oriented PZT thin films were fabricated on Pt/Ti/Coming 7059 glass using sol-gel method. The thin films having different orientation were fabricated by different drying conditions for pyrolysis. The preferred orientations of the PZT thin films were observed using XRD, rocking curves, and pole figures. The microstructures were investigated using SEM. The hysteresis loops and capacitance-voltage characteristics of the films were investigated using a standardized ferroelectric test system. The dielectric constant and current-voltage characteristics of the films were investigated using an impedance analyzer and pA meter, respectively. The films oriented in a particular direction showed superior electrical characteristics to the randomly oriented films.

Photoconductivity of Nanocomposite MEH-PPV: TiO2 Thin Films

2011 ◽  
Vol 13 ◽  
pp. 87-92 ◽  
Author(s):  
M.S.P Sarah ◽  
F.S. Zahid ◽  
M.Z. Musa ◽  
U.M. Noor ◽  
Z. Shaameri ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Surface Morphology ◽  
Spin Coating ◽  
Glass Substrate ◽  
Spin Coating Technique ◽  
Coating Technique ◽  
Current Voltage ◽  
Current Voltage Characteristics

The photoconductivity of a nanocomposite MEH-PPV:TiO2 thin film is investigated. The nanocomposite MEH-PPV:TiO2 thin film was deposited on a glass substrate by spin coating technique. The composition of the TiO2 powder was varied from 5 wt% to 20 wt% (with 5 wt% interval). The concentration of the MEH-PPV is given by 1 mg/1 ml. The current voltage characteristics were measured in dark and under illumination. The photoconductivity showed increment in value as the composition of the TiO2 is raised in the polymer based solution. The absorption showed augmentation as the amount of TiO2 is increased. The escalation of the current voltage is then supported by the results of surface morphology.

A facile synthesis of novel polyaniline/graphene nanocomposite thin films for enzyme-free electrochemical sensing of hydrogen peroxide

2021 ◽  
Author(s):  
Swati Verma ◽  
Dipendra Singh Mal ◽  
Paulo R. Oliveira ◽  
Bruno Campos Janegitz ◽  
Jai Prakash ◽  
...  
Keyword(s):  
Thin Films ◽  
Hydrogen Peroxide ◽  
Small Molecules ◽  
Present Article ◽  
Electrochemical Method ◽  
Electrochemical Sensing ◽  
Facile Synthesis ◽  
Nanocomposite Thin Films ◽  
Graphene Nanocomposite

Electrochemical method is the most effective, facile, and economical approach for the detection of small molecules. The present article deals with design and engineering of polymer-graphene based thin films through...

Ferroelectric Property and Microstructures of La-Doped Bi4Ti3O12 Thin Films

2013 ◽  
Vol 537 ◽  
pp. 114-117
Author(s):  
X.A. Mei ◽  
Rui Fang Liu ◽  
C.Q. Huang ◽  
J. Liu
Keyword(s):  
Thin Films ◽  
Hysteresis Loops ◽  
Differential Resistance ◽  
Rf Magnetron Sputtering ◽  
Layered Perovskite ◽  
Random Orientation ◽  
Si Substrates ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
La Doped

La-doped bismuth titanate (Bi4-xLaxTi3O12: BLT) and pure Bi4Ti3O12 (BIT) thin films with random orientation were fabricated on Pt/Ti/SiO2/Si substrates by rf magnetron sputtering technique. These samples had polycrystalline Bi-layered perovskite structure without preferred orientation, and consisted of well developed rod-like grains with random orientation. For the samples with x=0.25 and 1.0 the current-voltage characteristics exhibited negative differential resistance behaviors and their P-V hysteresis loops were characterized by large leakage current, whereas for the samples with x=0.5 and 0.75 the current-voltage characteristics showed simple ohmic behaviors and their P-V hysteresis loops were the saturated and undistorted hysteresis loops. The remanent polarization ( Pr ) and coercive field (Ec) of the BLT ceramic with x=0.75 were above 20μC/cm2 and 85KV/cm , respectively.

Anomalous change of carrier transport property of ferroelectric Hf0.5Zr0.5O2 thin films in the first poling treatment

2022 ◽  
Author(s):  
Yukinori Morita ◽  
Hiroyuki OTA ◽  
Shinji MIGITA
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Transport Property ◽  
Carrier Transport ◽  
Current Flow ◽  
Discontinuity Point ◽  
Voltage Sweep ◽  
Current Voltage ◽  
Carrier Transport Property ◽  
Carrier Transport Properties

Abstract Carrier transport properties of ferroelectric Hf0.5Zr0.5O2 (HZO) thin films have been investigated on metal-ferroelectric-metal (MFM) capacitor in the first current flow of ferroelectric poling treatment. In current–voltage (I–V) measurement of MFM capacitor, a kink or discontinuity point of derivative in I–V characteristic appears, and after the cyclic voltage sweep this kink disappears. This phenomenon is different from the ferroelectric instabilities after several thousand or million voltage cycle applies reported as the wake-up and fatigue. From the analysis using Poole-Frenkel plot of I–V characteristics, it is suggested that irreversible trap generation by electric field apply occurs in poling treatment.

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