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White Light Diodes
Diode question?
I have heard that different voltage makes a diode a different color, if so what voltage turns one white, I am in need of a very small light for my home project
First of all you mean LEDs not diodes. Diodes are devices that conduct current in one direction only.
LED (Light emitting diodes) are devices that emit light when stimulated by an electric current.
The color of the light is determined by the types of semi-conductor material used in their construction. So you cannot change the color of the light by changing voltage or current.
If you want white light from a LED, you need to find or buy a white light LED.
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(1) White Sealed LED License Plate Light, CLEAR 2 Diode, RV, camper trailer NEW |  |
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US $6.99 | 29d 18h 6m |
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100 pcs Light Emitting Diode LEDs 5mm White Light | |
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1000 pcs 5mm 2pin Round White Superbright Emitting Diode LED Light | |
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100 5mm 2 Pin Round White LED Light Emitting Diode Lamp | |
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10 x White LED Light Emitting DIODE 5mm Round Lamp 3.2V 18000mcd | |
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US $3.89 | 29d 19h 34m |
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10 x 3mm 2Pin Round White LED Light Emitting Diode Lamp | |
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US $2.72 | 29d 17h |
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Light-Emitting Diodes (Hardcover) $231.49 Revised and fully up-dated, the second edition of this graduate textbook offers a comprehensive explanation of the technology and physics of LEDs such as infrared, visible-spectrum, ultraviolet, and white LEDs made from III-V semiconductors. Elementary properties such as electrical and optical characteristics are reviewed, followed by the analysis of advanced device structures. With nine additional chapters, the treatment of LEDs has been vastly expanded, including new material on device packaging, reflectors, UV LEDs, III-V nitride materials, solid-state sources for illumination applications, and junction temperature. Radiative and non-radiative recombination dynamics, methods for improving light extraction, high-efficiency and high-power device designs, white-light emitters with wavelength-converting phosphor materials, optical reflectors, and spontaneous recombination in resonant-cavity structures are discussed in detail. With exercises, solutions, and illustrative examples, this textbook will be of interest to scientists and engineers working on LEDs and graduate students in electrical engineering, applied physics, and materials science. |
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The Diodes $93.99 High Quality Content by WIKIPEDIA articles The Diodes were a Canadian punk/new wave band formed in 1976. They released five albums: Diodes (1977), Released (1979), ActionReaction (1980), Survivors (1982), and Time/Damage Live 1978 (2010). One of the first Toronto bands playing that style of music, The Diodes helped foster the scene in the city. Along with manager Ralph Alfonso, The Diodes opened the first Canadian punk nightclub in 1977, called Crash n Burn, where many of the citys punk bands at that time played. The first band to play the club was The Nerves, on a double bill with The Diodes. The club was closed at the end of the summer of 1977 due to complaints by the Liberal Party of Ontario (the principal tenants of the building). Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 130 Publication Date: 2010/08/01 Language: English Dimensions: 6.00 x 9.02 x 0.31 inches |
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Light-Emitting Diodes $87.75 No Synopsis Available |
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Polymer Light Emitting Diodes Based on Polyfluorenes $138.61 This work is devoted to the study on Polymer Light Emitting Diodes (PLEDs) based on polyfluorenes, a promising class of semiconductive polymers for lightemitting diode applications. It covers theories of PLEDs, literature overview of polyfluorenebased lightemitting diodes, as well as research results by the authors. In this study, several types of PLED devices based on neat polyfluorenes or polyfluorene blends were designed, fabricated, and characterized. The electrical characteristics of two neat polyfluorenes were simulated via using space charge limited current theory for the holeonly case and/or exploiting a commercial software package. Author: Zhang, Qiushu/ Zivanovic, Sandra Binding Type: Paperback Number of Pages: 164 Publication Date: 2010/08/16 Language: English Dimensions: 5.98 x 9.01 x 0.37 inches |
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Organic LightEmitting Diodes $113.11 Organic lightemitting diode (OLED) technology is used in a variety of display applications, ranging from cell phones and MP3 to prototype TVs, and holds great promise for the production of highly efficient largearea light sources and flat panel displays. It has the potential to become a multibilliondollar industry within a few years. The biggest technical challenge for OLEDs is the limited lifetime associated with elevated temperatures and exposure to moisture. The guaranteed hours of operation (15,000 hr) is currently inadequate for most TVs and replacement of LCDs with the 60,000 hr halflife. This book, therefore, investigated the thermalactivated and moistureinduced degradation pathways of small molecule based prototype OLEDs as well as interfacial electronic properties at the nanoscale level through realtime visualization. The results should help shed some lights on improving luminescence efficiency and lifetime of OLEDs, and should be especially useful to professionals in research and development of not only OLED technology but other organic electronics, or anyone else who may be interested in plastic electronics. Author: Xu, Mingsheng Binding Type: Paperback Number of Pages: 148 Publication Date: 2010/06/04 Language: English Dimensions: 5.98 x 9.01 x 0.34 inches |
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Organic Light Emitting Diodes (Hardcover) $385.4 Addressing the development of the organic light emitting diode (OLED) based on rare-earth and transition-metal complexes—Europium, Terbium, Ruthenium, and Rhenium—this unique perspective explains how these materials can be used to build organic-LEDs, from chemistry synthesis to device operation and the related charge transfer and confinement. Examining how organic materials can be used to build organic-LEDs, the relationship between the chemistry molecule "design," and state-of-the-art and expected pathways, this intelligent report provides intensive experimental results for scientists and engineers working in this new OLED framework, while maintaining a didactic utility for graduation students and teachers studying optoelectronics. |
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Light-emitting Diodes and Optoelectronics (Hardcover) $369.61 Description not available. |
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Electroluminescence in Organic Light-emitting Diodes $80.93 No Synopsis Available |
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Red and Near Infrared Microcavity LightEmitting Diodes $196.21 Lighting is essential to modern society but it accounts for nearly 20 of the electrical energy usage. Thus efforts to increase the conversion efficiencies of light sources are attracting more and more attention. Potential high efficiency light sources are fluorescent lamps or lightemitting diodes (LEDs). Modern LEDs show internal quantum efficiencies of virtually 100 . However, in the case of standard LEDs most of this light is trapped inside the device because of total internal reflection at the interface semiconductorair. Several methods have been developed in order to increase the extraction efficiency. This can be done either by optimizing the device geometry in order to increase the escape cone or by incorporating a resonant structure in order to force the internal emission into the existing escape cone. The latter approach is called microcavity LED (MCLED) or resonant cavity LED (RCLED) and is presented in detail in this work. Novel concepts to further increase the external quantum efficiency are discussed and experimental results are presented. Author: Joray, Reto Binding Type: Paperback Number of Pages: 268 Publication Date: 2009/05/01 Language: English Dimensions: 9.00 x 6.00 x 0.56 inches |
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Principles of Solar Cells, Leds and Diodes (Hardcover) $364.39 The book will cover the two most important applications of semiconductor diodes – solar cells and LEDs - together with quantitative coverage of the physics of the PN junction at the senior undergraduate level. It will include: Review of semiconductor physicsIntroduction to PN diodesThe solar cellPhysics of efficient conversion of sunlight into electrical energy Semiconductor solar cell materials and device physicsAdvanced solar cell materials and devicesThe light emitting diodePhysics of efficient conversion of electrical energy into lightSemiconductor light emitting diode materials and device physicsAdvanced light emitting diode materials and devices |
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Principles of Solar Cells, Leds and Diodes (Paperback) $148.45 The book will cover the two most important applications of semiconductor diodes – solar cells and LEDs - together with quantitative coverage of the physics of the PN junction at the senior undergraduate level. It will include: Review of semiconductor physicsIntroduction to PN diodesThe solar cellPhysics of efficient conversion of sunlight into electrical energy Semiconductor solar cell materials and device physicsAdvanced solar cell materials and devicesThe light emitting diodePhysics of efficient conversion of electrical energy into lightSemiconductor light emitting diode materials and device physicsAdvanced light emitting diode materials and devices |
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Blue Laser and Light Emitting Diodes II $95.55 No Synopsis Available |
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Organic Light-Emitting Diodes: Principles, Characteristics & Processes $233.95 No Synopsis Available |
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White Glove Delivery $230 White Glove Delivery |
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DVD diode extraction from a sled
hi plz help me out with this calculations?
hi this is the list of things i need for a project which my group gt to do overnight. plz help me calculate the cost.
-Clear plastic water bottle, 1.5L size
-Base 14cm by 25cm, 2cm thick,plywood, particle board, or lumber
-28 gage copper wire
-Rare earth disk magnets (2-2.5cm
-Square dowels: 2 pcs. 30cm long,
and 1 piece 20cm long
-Round wooden dowel (6mm or ¼”)30 cm long
-Light emitting diode
-Fender washers (3cm diameter
-Wood screw
-Screw eye
-Corrugated cardboard60 cm by 20 cm
-White glue (small bottle)
plz send in dollars plzzzzzzzzzzzzzz.
HAL 3000 says $3.50.
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