Characterization of polyester films used in capacitors. II. Effects of heat treatments on transient and steady‐state charging currents in polyethylene terephthalate thin films

1994 ◽  
Vol 76 (8) ◽  
pp. 4696-4704 ◽  
Author(s):  
A. Thielen ◽  
J. Cerfontaine ◽  
J. Niezette ◽  
G. Feyder ◽  
J. Vanderschueren
Keyword(s):  
Thin Films ◽  
Steady State ◽  
Polyethylene Terephthalate ◽  
Heat Treatments ◽  
Transient And Steady State

Thermal Properties Evaluation of Thin Films, Wafers And Substrates

1990 ◽  
Vol 203 ◽  
Author(s):  
R.P. Tye ◽  
A. Maesono
Keyword(s):  
Thin Films ◽  
Thermal Properties ◽  
Steady State ◽  
Thermal Performance ◽  
Thermophysical Properties ◽  
Emerging Technologies ◽  
Layered Structures ◽  
Current Transient ◽  
Performance Characteristics ◽  
Transient And Steady State

ABSTRACTMaterials in use or under consideration for many applications in new and emerging technologies are often available only in small quantities and many times in the form of thin films, wafers and sheets. Such size and form limitations present a number of challenges to those wishing to evaluate thermal performance characteristics. This has resulted in a need to develop totally new transient or modify current transient and steady state techniques significantly. Various new or modified techniques to measure thermophysical properties are described. Illustrations of, applications to and results on semiconductors, superconductors, diamonds, polymers, composites and layered structures will be discussed.

Computing the closed-loop characteristics of a generalized multi-threshold knock controller

2017 ◽  
Vol 19 (9) ◽  
pp. 952-962 ◽  
Author(s):  
Saeed Shayestehmanesh ◽  
James C Peyton Jones ◽  
Jesse Frey
Keyword(s):  
Steady State ◽  
Control Systems ◽  
Closed Loop ◽  
Single Experiment ◽  
Informative Feedback ◽  
Control Laws ◽  
Knock Control ◽  
Transient And Steady State ◽  
Steady State Performance

Most knock controllers respond to knock events which are defined according to some threshold knock intensity. Multi-threshold knock events offer more informative feedback since they encode not just the occurrence of knock events but also some measure of their intensity. While this has the potential for improved control, it is hard to assess the extent to which any benefits are truly realized because (in common with all knock control systems) the results of any single experiment or simulation depends on the random arrival of knock events in that instance. In this article, methods are developed instead to compute the statistical properties of the closed-loop response of a general multi-threshold knock controller, thereby providing a much more complete and rigorous characterization of its performance than has previously been possible. The method is applied to single- and dual-threshold knock controllers and used to provide a rigorous comparison of the transient and steady-state performance of these different control laws. The method can also be used as a calibration aid to assess the effects of different controller gains in reliable, repeatable fashion.

Characterization of polyaniline thin films prepared on polyethylene terephthalate substrate

2020 ◽  
Author(s):  
Yuliia A. Stetsiv ◽  
Mykhailo M. Yatsyshyn ◽  
Dmytro Nykypanchuk ◽  
Sergii A. Korniy ◽  
Ivan Saldan ◽  
...  
Keyword(s):  
Thin Films ◽  
Polyethylene Terephthalate ◽  
Polyethylene Terephthalate Substrate

Electrical Characterization of Ferroelectric Thin Films of Lithium Niobate on Silicon Substrates

1990 ◽  
Vol 200 ◽  
Author(s):  
Robert C. Baumann ◽  
Timothy A. Rost ◽  
Thomas A. Rabson
Keyword(s):  
Thin Films ◽  
Photovoltaic Effect ◽  
Short Circuit ◽  
Electrical Characterization ◽  
Oxide Semiconductor ◽  
Silicon Substrates ◽  
Small Areas ◽  
Transient And Steady State ◽  
Ferroelectric Switching

ABSTRACTThin films (.1-.6 μm) of LiNbO3 have been deposited on silicon substrates by rf reactive sputtering. MFS (metal-ferroelectric-semiconductor) capacitor structures were created by a liftoff process which physically isolated small areas of LiNbO3. Standard MOS (metal-oxide-semiconductor) electrical characterization techniques were used to determine the resistivity and dielectric constant of the films. Short-circuit photocurrent measurements revealed both transient and steady state components attributed to a pyroelectric effect and a bulk photovoltaic effect respectively. The conduction processes in these films were examined and found to exhibit Frenkel-Poole characteristics. Ferroelectric switching at room temperature has also been observed in these films, however, the reversed orientation was not stable.

Growth and Analysis of Red, Green and Blue Luminescent Oxide Thin Films

1998 ◽  
Vol 05 (01) ◽  
pp. 413-417 ◽  
Author(s):  
G. A. Hirata ◽  
J. Mckittrick ◽  
D. Devlin
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Yttrium Aluminum Garnet ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Heat Treatments ◽  
Amorphous Films ◽  
Sapphire Substrates ◽  
Yttrium Aluminum

The growth and characterization of europium ( Eu 3+) and terbium ( Tb 3+) doped yttrium aluminum garnet ( Y 3 Al 5 O 12 or YAG) and undoped ZnGa 2O4 photoluminescent thin films deposited on sapphire substrates at 400°C by excimer pulsed laser ablation is reported. Smooth, continuous 500-nm-thick amorphous films were produced with compositions depleted in oxygen. Luminescence measurements on the as-deposited and on annealed samples revealed that heat treatments at temperatures > 800°C were necessary to induce crystallization and reoxygenate, which coincided with the onset of luminescence. Annealing produced randomly oriented grains on the order of 15-200 nm.

scholarly journals Simulation and Characterization of Transient and Steady State Electrosprays

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Yun Ouedraogo ◽  
Erion Gjonaj ◽  
Herbert De Gersem ◽  
Christoph Steinhausen ◽  
Grazia Lamanna ◽  
...  
Keyword(s):  
Steady State ◽  
Transient And Steady State
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