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![Band gap, explained by RP Photonics Encyclopedia; dielectrics, semiconductors, metals, energy, electronic levels, band gap wavelength, absorption, emission, fluorescence Band gap, explained by RP Photonics Encyclopedia; dielectrics, semiconductors, metals, energy, electronic levels, band gap wavelength, absorption, emission, fluorescence](https://www.rp-photonics.com/img/indirect_bandgap.png)
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![An LED is constructed from a p-n junction based on a certain semi-conducting material whose energy gap is 1.9 eV. Then, the wavelength of the emitted light is An LED is constructed from a p-n junction based on a certain semi-conducting material whose energy gap is 1.9 eV. Then, the wavelength of the emitted light is](https://d10lpgp6xz60nq.cloudfront.net/ss/web/1846808.jpg)
An LED is constructed from a p-n junction based on a certain semi-conducting material whose energy gap is 1.9 eV. Then, the wavelength of the emitted light is
![Band gap, explained by RP Photonics Encyclopedia; dielectrics, semiconductors, metals, energy, electronic levels, band gap wavelength, absorption, emission, fluorescence Band gap, explained by RP Photonics Encyclopedia; dielectrics, semiconductors, metals, energy, electronic levels, band gap wavelength, absorption, emission, fluorescence](https://www.rp-photonics.com/img/direct_bandgap.png)
Band gap, explained by RP Photonics Encyclopedia; dielectrics, semiconductors, metals, energy, electronic levels, band gap wavelength, absorption, emission, fluorescence
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Aluminum Nitride Light Emitting Diodes with the Shortest Wavelength towards Dioxin, PCB Decomposition Technology — LED professional - LED Lighting Technology, Application Magazine
![If an LED has to emit 662 nm wavelength of light them what should be the band gap energy of its semiconductor? h = 6.62 × 10^-34 Js. If an LED has to emit 662 nm wavelength of light them what should be the band gap energy of its semiconductor? h = 6.62 × 10^-34 Js.](https://d1hj4to4g9ba46.cloudfront.net/questions/1967209_1724553_ans_811a10999e3d4bdab13c89bb5d5d8d07.jpg)