the fabrication of a non-doped red organic light-emitting device (oled) has been developed using naturally occurring curcumin as an emissive layer of oled. in this research, the electroluminescent spectrum (el) of curcumin as a donor-acceptor-donor (d-a-d) chromophore was obtained at wavelength of 612 nm. also, the maximum external quantum efficiencies (eqe) for this device was measured and fou...

This paper introduces a new soft switching boost converter with passive snubber. In the proposed converter, the main switch turns on under zero current switching (ZCS) and turns off under zero voltage switching (ZVS) without any additional voltage or current stresses. The main diode turns on under ZVS and turns off under ZCS. The proposed converter has features as low cost, simple control, low ...

This paper presents Simultaneous variation and control of the output voltage and frequency, reduction in the harmonic components in load currents. These inherent features have to be employed in many industrial applications such as variable speed drives, uninterruptible power supplies and other power conversion systems. However, the reduction of the harmonic components in output currents and vol...

Electrical characteristics of GaAs metal–oxide–semiconductor field effect transistor with atomic layer deposition deposited Al2O3 gate dielectric have been investigated. The IV characteristics were studied after various constant voltage stress (CVS) has been applied. A power law dependence of the gate leakage current (Ig) on the gate voltage (Vg) was found to fit the CVS data of the low positiv...

In this work, we present an original model to explain the accelerated wear-out behavior of irradiated ultra-thin oxides. The model uses a statistical approach to the breakdown occurrences based on a nonhomogeneous Poisson process. By means of our model, we can estimate the number and the time evolution of those damaged regions produced by ion hits that generate breakdown spots during high field...

A Conventional Boost Converter is not capable for obtain a high voltage gain even extreme duty cycle maintain the triggering circuit diagram. In order to increase the voltage gain for the new Boost converter from the solar power application. In this paper boost converter specialty is achieved 10 times that of input voltage and more than 10 times of input voltages is possible from output side by...

Efficient mechanical energy harvesters enable various wearable devices and auxiliary energy supply. Here we report a novel class of mechanical energy harvesters via stress-voltage coupling in electrochemically alloyed electrodes. The device consists of two identical Li-alloyed Si as electrodes, separated by electrolyte-soaked polymer membranes. Bending-induced asymmetric stresses generate chemi...

This paper presents a new nonv design that incorporates low-voltag PMOS Flash transistors. The de global store, restore and erase o negligible penalty on regular SRA Store/erase operations also do not c power even considering charge Circuit simulations based on exp characteristics demonstrate that 10 operation at ± 6 V is sufficien restoration of the stored bit even und process variation.

-In this paper a low voltage Colpitts chaotic oscillator is proposed, based on an Electrically Programmable Analog Device matched Pair Mosfet Array (EPAD). The Oscillator is capable of producing chaotic carriers in very low supply voltages, this feature is very useful in mobile and low power consumption utilities. Key-Words: Chaos, Colpitts Oscillator, Low Voltage, EPAD.