Schottky diode

modelled as a part of wireless power transmission systems that transmit power through radio waves or electromagnetic waves. A basic rectenna, comprises of a microstrip patch antenna with a RF diode. It is nonlinear rectifying element (for example Schottky diode, Zener diode, IMPATT diode.... etc.). The diode rectifies the alternating current or bidirectional current induced in the patch antenna by the RF waves, to generate DC or unidirectional

WIRELESS CHARGING OF MOBILE PHONES. Mallepula Dhana Teja Lakshmi Naidu G.Indra Reddy P.G Scholar Assistant Professor Department of ECE, Department of EEE, Mother Teresa institute of science and technology GNITC khammam, India

metal such as Al or Gold or Ag over a semiconductor (ptype/n type) wafer by different deposition techniques (e-beam/thermal evaporation or sputtering/CVD). Depending on the work function of the metal, this type of junction may behave as ohmic or schottky contacts. as the name suggests if the contact is ohmic, the current –voltage relationship is linear as per Ohm’s law. For ohmic contact it is mandatory that the

first Light Emitting Diode appears at early of twentieth century. The first LED light was produced by touching the SiC crystal with metal electrodes so that a rectifying Schottky contact was formed. In 1964, Eastman discovered that light is formed in Schottky Diodes in reverse-biased conditions. Infrared LEDs and Lasers based in GaAs were first reported in 1962 followed by the AlGaAs/GaAs devices in the early of 1960s. The first demonstration on resonant-cavity light emitting diode was carry out in the

employed as a counter electrode in a dye-sensitized solar cell for low-cost photosensor applications. TiO2 nanomaterial is used as photoanode. The structure of the PEDOT: PPS film was investigated by atomic force microscope. This DSSC behaves like Schottky diode at the dark condition. The photovoltaic behavior was studied in the light intensity range 5 - 130 mW/cm-2. This cell has a stable fill factor of about 0.5 for all the studied illumination intensity range. The linear photo-response of the current

Suspended CNTFETs A suspended CNTFET device. Yet another CNTFET device geometry entails suspending the nanotube more than a trench to reduce contact with the substrate and gate oxide. This technique has the benefit of reduced scattering at the CNT-substrate interface, enhancing device overall performance. There are numerous methods used to fabricate suspended CNTFETs, ranging from growing them over trenches using catalyst particles

However, given the recent advances in energy efficiency for the circuit components of a sensor (say, diodes that require less forward voltage threshold), and the low-power operation modes supported by the device itself (say, sleep mode consuming only millivolt), there is a visible need for revisiting energy harvesting circuit design that can successfully

BioMEMS devices are manufactured using similar microfabrication techniques as those used in semiconductor processing (such as photolithography, thin-film deposition and etching ) to produce the desired configuration of features, including traces (thin metal wires), vias (interlayer connections), reservoirs, valves, and membranes. The interest in BioMEMS is growing rapidly, with opportunities in areas such as biosensors, pacemakers, immunoisolation capsules, and drug delivery [31]. Microcantilever

This section summarizes the pioneer works already done in the field of radio frequency energy harvesting. This chapter all the research paper are appraised briefly. Literature survey provide information about history, present scenario of research and latest advancement in microstrip technology. 1. In this paper, authors conducted a survey of RF power density in urban environment in order to design a rectenna for harvesting ambient RF energy from free space. Although, RF energy spread out in free

Wireless power transmission to power portable electronic devices. With the increasing popularity of wearable gadgets, it becomes necessary to charge more and more gadgets such as smartphones, smart watches, tablets, smart glasses and so on, which is extremely inconvenient. In addition, considering the limitations of current battery capacities used in portable consumer electronics and the fact that cost of batteries rises along with their capacity, we should look for ways to eliminate the need to