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Light Emitting Diodes Led
Determine the wavelengths of all light emitting diodes (LED).?
Yes, we need more information, but here are some general numbers for the wavelengths of some common colors:
red = 620-625 Nanometers
pink = 605-610 NM
yellow = 590-592 NM
green = 520-525 NM
blue = 465-470 NM
purple = 435-439 NM
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100pcs 5mm F5 Blue LED Light Emitting Diode 3V 455nm 460nm 25 degree |  |
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100 x 5MM White Round LED Light Emitting Diodes | |
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US $1.40 | 21d 5h 54m |
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5mm INFRARED IR LED Light Emitting Diode 850nm - 10 PCs | |
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100PCS 2 PINS 3MM Round LED Light Emitting Diode Lamp | |
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100 5mm 2 Pin Round White LED Light Emitting Diode Lamp | |
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US $3.99 | 20d 20h 36m |
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Light-Emitting Diodes (Hardcover) $186.1 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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Light-Emitting Diodes $87.75 No Synopsis Available |
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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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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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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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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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Organic Light Emitting Diodes : The Use of Rare Earth and Transition Metals $146.2 No Synopsis Available |
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Introduction to Nitride Semiconductor Blue Lasers and Light Emitting Diodes $204.7 No Synopsis Available |
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CarbazoleBased Emitting Compounds $141.79 Carbazole is a heterocyclic tricyclic aromatic organic compound consisting of two sixmembered benzene rings fused on either side of a fivemembered nitrogencontaining ring. A large number of carbazole derivatives have been designed and synthesized and organic electronic devices based on these derivatives such as organic light emitting diodes (OLEDs), have been investigated. The optical and electrical properties of carbazoles are affected by substitution on the 2, 3, 6, 7 and 9Hpositions. Many carbazole derivatives have sufficiently high triplet energy to make them an efficient host where they can serve as red, green, or blue triplet emitters. Highly fluorescent and stable carbazolebased compounds were synthesized and characterized. Substitution of carbazoles at 3 and 6 position by tertbutyl group enhanced the solubility. Suitably susbtituted carbazoles form highly stable fluorescent organic nanoparticles. The emission of these nanoparticles was reversibly switched on/off in the bluegreen and orangered regions from a change in the ratio of the tetrahydrofuran/water system used in their preparation. Author: Adhikari, Ravi/ Neckers, Dr Douglas C. Binding Type: Paperback Number of Pages: 192 Publication Date: 2010/05/05 Language: English Dimensions: 5.98 x 9.01 x 0.44 inches |
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Eurolite Vertical Emitting LED Light Strips (Pair) $27.95 Interior and exterior applications Easy to install Can be cut at cut lines Use on wheel wheels, truck lids, door sills, head lamps, gills, and under dashboards Size: 16" long Sold as a pair |
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Fundamentals of High-Efficiency OLEDS: Basic Science to Manufacturing of Organic Light-Emitting Diodes $126.7 No Synopsis Available |
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Ledra Uno LED Recessed Light by Bruck Lighting Systems $236 The Bruck Lighting Ledra Uno LED Recessed Light weaves tranquility in the atmosphere by emitting cool radiations while exhibiting an innovative pattern. The Ledra Uno LED Recessed Light features metal body. Bruck Lighting, located in Tustin, A, creates beautiful lighting products using pioneering innovation, design, and engineering. The Bruck Lighting Ledra Uno LED Recessed Light is available with the following: Included Features:Metal body.One J-box and LED Driver.ETL Listed.UL Listed.Energy Efficient.Options:Color: Warm White, or White (shown).Finish: Chrome, or Matte Chrome (shown).Lighting: One 3 Watt 120 Volt LED lamp (included). Shipping: This item usually ships within 1 - 2 weeks. Dimensions: Fixture: Diameter 2.5 In., Height .5 In. |
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SpecD Chrome LED 3rd Brake Light Ford F-150 04-08 $42 Add the finishing touches to your Ford F-150 with Spec-D Tuning39s line of brilliant LED tail lights for your truck. LEDs, or Light Emitting Diodes, give off a powerful light that is brighter, more efficient, and longer lasting than a standard light |
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SpecD Black LED 3rd Brake Light Ford Mustang 05-09 $36 Add the finishing touches to your Ford Mustang with Spec-D Tuning39s line of brilliant LED tail lights for your car. LEDs, or Light Emitting Diodes, give off a powerful light that is brighter, more efficient, and longer lasting than a standard light |
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Polarized OLED
In and Light Emitting Diode, does a green or an orange LED has a deeper hole for electrons to fall into? Why?
Color corresponds to the photon emission when an electron drops back down to the ground state:
http://en.wikipedia.org/wiki/LED#Physical_function
E = h*nu, so a bigger gap corresponds to a higher frequency, or shorter wavelength
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