scholarly journals THE USE OF LIQUID PROBES BASED ON AN EUTECTIC SOLUTION FOR STUDYING THE CONDUCTING PROPERTIES OF THIN FILMS

2021 ◽  
pp. 338-344
Author(s):  
Никита Вадимович Пермяков
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Contact Area ◽  
Vertical Axis ◽  
Mechanical Deformation ◽  
Optical Control ◽  
Contact Areas ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Indium Gallium

Работа посвящена разработке модульной четрырехзондовой установки с использованием жидкого контакта на основе индий-галлиевого эвтектического раствора (EGaIn), с помощью которого можно создать прижимные жидкие контакты, не вносящие механические деформации в измеряемые структуры. Предлагается использовать данную установку для измерения вольт-амперных характеристик тонкопленочных образцов. Предполагается модульная схема измерений. Каждый зонд управляется четырьмя моторами для позиционирования и выдавливания капли из шприца для формирования нужного размера пятна контакта. Используется оптический контроль для подготовки зондов и измерения диаметра сформированных контактных областей. Подобраны параметры изготовления жидких зондов, а именно скорости выдавливания и перемещения зонда вдоль вертикальной оси для формирования капли конической формы . Управление установкой осуществляется в среде LabView. The work is devoted to development of a modular four-probe setup using a liquid contact based on an indium-gallium eutectic solution (EGaIn), which can be used to create clamping liquid contacts that do not introduce mechanical deformation into the measured structures. It is proposed to use this setup for measuring the current-voltage characteristics of thin-film samples. A modular measurement scheme is assumed. Each probe is driven by four motors to position and expel a drop from the syringe to form the desired contact area size. Optical control is used to prepare the probes and measure the diameter of the formed contact areas. The parameters for the manufacture of liquid probes are selected, namely, the speed of extrusion and movement of the probe along the vertical axis to form a conical droplet. The installation is controlled in the LabView environment.

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.

Properties of Iodine Doped Amorphous Carbon Thin Films Grown by Thermal CVD

2013 ◽  
Vol 667 ◽  
pp. 294-299 ◽  
Author(s):  
K. Dayana ◽  
A.N. Fadzilah ◽  
A. Ishak ◽  
Mohamad Rusop Mahmood
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Amorphous Carbon ◽  
Iodine Doping ◽  
Electrical And Optical Properties ◽  
As Doping ◽  
Thermal Cvd ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Amorphous Carbon Thin Film

Thin film of undoped and doped amorphous carbon has been achieved using the simple thermal CVD system in an ambient gas of Ar and Ar with I2, respectively. The electrical and optical properties of the iodine doped amorphous carbon (a-C:I) thin films were studied. The incorporation of iodine into the amorphous carbon thin film results in increase of electrical conductivity as doping temperature increase up to 400°C, which indicates that doping effect of iodine. Heterojuction is confirmed by rectifying current-voltage characteristics of a-C:I/n-Si junction. The decreasing of optical band gap from 0.54 to 0.25 eV after iodine doping was determined which contribute to induce graphitization in the films. Raman result indicates that sp2 and sp3 bonded carbon atoms were dominated in the both with and without iodine doped thin films.

scholarly journals N-образные вольт-амперные характеристики гибридных органических материалов на основе цинковых комплексов

2021 ◽  
Vol 47 (8) ◽  
pp. 3
Author(s):  
А.Н. Гусев ◽  
А.С. Мазинов ◽  
В.С. Гурченко ◽  
А.С. Тютюник ◽  
Е.В. Брага
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Infrared Spectroscopy ◽  
Electrical Properties ◽  
Band Gap ◽  
Optical Band Gap ◽  
Organic Materials ◽  
Zinc Complexes ◽  
Current Voltage ◽  
Current Voltage Characteristics

The current-voltage characteristics of hybrid organic materials C48H42N6O2Zn and C54H54N6O2Zn are researched. The method of obtaining, microscopy, as well as the results of infrared spectroscopy and studies of the electrical properties of the obtained thin films of these organic materials based on zinc complexes. The results of calculating the optical band gap are presented. It was found that the resulting thin-film structures have N-shaped current-voltage characteristics.

scholarly journals Вольт-амперные характеристики и фотоэлектрический эффект гетероструктур фуллерен С-=SUB=-60-=/SUB=--4-метилфенилгидразон N-изоамилизатина

2019 ◽  
Vol 45 (19) ◽  
pp. 40
Author(s):  
А.Н. Гусев ◽  
А.С. Мазинов ◽  
А.И. Шевченко ◽  
А.С. Тютюник ◽  
В.С. Гурченко ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Organic Matter ◽  
Ir Spectroscopy ◽  
Fullerene C60 ◽  
Electrophysical Properties ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
C60 Films

The results of using N-isoamylisatin 4-methylphenylhydrazone to optimize fullerene-based heterostructures have been presented. The technique of obtaining, microscopy, as well as the results of IR spectroscopy and the study of the electrophysical properties of thin films of this hydrazone together with fullerene C60 have been described. The addition of the considered organic matter to fullerene films made it possible to increase the photoconductivity by 2 orders of magnitude compared to C60 films. The obtained thin-film structures have rectifying light-current-voltage characteristics.

scholarly journals Effect of masses of active layers of C60-4-methylphenylhydrazone N-isoamylisatin fullerene heterostructures on their rectifying characteristics

2020 ◽  
Vol 12 (3) ◽  
pp. 361-368
Author(s):  
Аlim S.-A. Mazinov ◽  
◽  
Andrey S. Tyutyunik ◽  
Vladimir S. Gurchenko ◽  
Veronika Yu. Ilina ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solid Phase ◽  
Fullerene C60 ◽  
Initial Powder ◽  
X Ray ◽  
Active Layers ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
The Relationship

An organocarbon heterostructure consisting of thin films of fullerene and 4-methylphenylhydrazone N-isoamylisatin was obtained from a solution by irrigation. The procedure for obtaining the samples, the microscopy, and synthesis of the initial powder material have been described. The results of an alternate X-ray phase analysis of the substances used has been presented. The analysis of changes in the electrical and optical characteristics of the active layers, depending on the mass of the solid phase has been carried out. The relationship between a sequential increase in film thickness and an increase in the absorption coefficient of infrared electromagnetic radiation has been revealed. Having determined the optimal thicknesses of the active layers of the heterostructure, based on fullerene C60 and 4-methylphenylhydrazone N-isoamylisatin, we achieved an increase in photoconductivity by two orders of magnitude. The obtained light current – voltage characteristics of such thin-film structures are rectilinear in nature with a direct load of up to 10 V.

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.

Current–voltage characteristics of PLD grown manganite based ZnO/La0.5Pr0.2Sr0.3MnO3/SrNb0.002Ti0.998O3 thin film heterostructure

2012 ◽  
Vol 152 (1) ◽  
pp. 34-37 ◽  
Author(s):  
Uma Khachar ◽  
P.S. Solanki ◽  
R.J. Choudhary ◽  
D.M. Phase ◽  
V. Ganesan ◽  
...  
Keyword(s):  
Thin Film ◽  
Current Voltage ◽  
Current Voltage Characteristics
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