CONTENTS + 0 ) 2 6 - 4 Learning Objectives ➣ P-N Junction Diode ➣ Derivation of Junction Resistance ➣ Junction Breakdown ➣ Junction Capacitance ➣ Equivalent Circuit of P-N Junction ➣ Diode Fabrication # P-N JUNCTION DIODE ➣ Grown Junction ➣ Alloy Junction ➣ Diffused Junction ➣ Epitaxial Junction ➣ Point Contact Junction ➣ The Ideal Diode ➣ The Real Diode ➣ Diode Circuits with D.C. and A.C. Voltage Sources ➣ Diode Clipper and Clamper Circuits ➣ Clippers ➣ Some Clipping
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CHARACTERISTICS AND OTHER DIODE APPLICATIONS AIM:-To observe and draw the Forward and Reverse bias V-I Characteristics of a P-N Junction diode and diode applications . APPARATUS:P-N Diode 1N914 Regulated Power supply (0-30v) Resistor 1KΩ Ammeters (0-200 mA‚ Voltmeter (0-2V/200 V) Bread board Connecting wires THEORY:A p-n junction diode conducts only in one direction. The V-I characteristics of the diode are curve between voltage across the diode and current through the diode. When external voltage
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LIGHT EMITTING DIODES Light Emitting Diodes are electronic components that use the flow of electrons to excite materials into emitting photons of light. A diode is a basic electronic component that allows electricity to flow one way only. The discovery of "light emitting" diodes we believe was an accident sometime around 1907 when a diode in an early radio transmitter was noticed to glow when in use. Incandescent bulbs use resistance in a filament to impede the flow of electricity‚ heating
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Light Emitting Diodes (LEDs) ELE 432 Assignment # 3 Vijay Kumar Peddinti Light Emitting Diodes Principle Synopsis: To explain the theory and the underlying principle behind the functioning of an LED Brief History: • The first known report of a light-emitting solid-state diode was made in 1907 by the British experimenter H. J. Round. (material.eng.usm.my/stafhome/zainovia/EBB424e/LED1.ppt) • • • • • • In the mid 1920s‚ Russian Oleg Vladimirovich Losev independently created the first LED‚ although
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Active packing method for blue light-emitting diodes with photosensitive polymerization: formation of self-focusing encapsulates Hao Wang 1‚ 2 *‚ Jae-Hyoung Ryu3‚ KyuSeung Lee2‚ Chun Hua Tan1‚ Lihua Jin2‚ Songmei Li2‚ Chang-Hee Hong3‚ YongHoon Cho2‚ Songhao Liu1 School for Information and Optoelectronic Science and Engineering‚ South China Normal University. Guangzhou 510631‚ China 2 Nano-Bio- Photonics Laboratory‚ Department of Physic s 6 and Institute for Basic Science Research‚ Chungbuk National
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ORGANIC LIGHT EMITTING DIODES DONE BY: P.R.SESHADRI ECE-B 3RD YEAR 30410106085 ORGANIC LIGHT EMITTING DIODES INTRODUCTION An OLED (organic light-emitting diode) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound which emits light in response to an electric current. This layer of organic semiconductor is situated between two electrodes. Generally‚ at least one of these electrodes is transparent. OLEDs are used to create digital
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A Seminar Report On “ORGANIC LIGHT EMITTING DIODE INDEX S.NO TOPIC PAGE NO 1) Introduction…………………………….……………….….………………6. 2) OLED vs LED……………………..…………………….……………..…..7 3) History………………………………………………….…………….……..8 4) Organic Light Emitting Diode……………………….……………….…….10 5) Structure of OLED………………….……………………..………………...11 6) OLED device operation and principle……........…………..………………...12 7) Working
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Application of Organic Light Emitting Diode (OLED) for Display Systems: Advanced Characteristics and Possible Solutions to Challenges 1. Introduction The first organic light emitting diode (OLED)‚ which was an innovatory of electroluminescence that emits light using organic materials‚ was reported in 1987 (Tang & VanSlyke‚ 1987). OLED displays are constructed by surrounding a glass or plastic substrate with organic compounds that emit light when current passes through them (Askari‚ 2014). Continuous
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I. Diode and Diode Application 1. Diodes 2. Rectification 3. Power supply filter 4. Applications of diodes ← Signal rectifier ← Diode gate ← Diode clamps ← Limiter Diodes Some elements are linear (resistors‚ capacitors‚ inductors)‚ which means that doubling the applied signal (let us say a voltage) produces a doubling of the response (let us say a current). They are also passive – they do not have built-in source of power. They are two-terminal devices‚ (which
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E & H PLANE TEE MAGIC TEE PDF created with pdfFactory Pro trial version www.pdffactory.com Contents ü History ü What is Magic Tee ? ü Microwave T-junctions ü Two-port network ü E-plane tee ü H-plane tee ü MAGIC TEE (HYBRID TEE) ü Characteristics of magic tee ü Electric field pattern of magic tee ü Application of Magic Tee PDF created with pdfFactory Pro trial version www.pdffactory.com HISTORY Ø A magic tee is a four-port‚ 180 degree hybrid splitter‚ realized in waveguide. Ø Originally
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