ADAPTING SHORT-WAVELENGTH LED'S FOR POLYCHROMATIC, BROADBAND, OR WHITE EMISSION
First Claim
1. An adapted LED comprising an LED and a re-emitting semiconductor construction, wherein the re-emitting semiconductor construction comprises a first potential well having a first transition energy and an absorbing layer closely adjacent to the first potential well, the absorbing layer having a band gap energy greater than the first transition energy and smaller than an energy of a photon emitted by the LED.
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Abstract
An adapted LED is provided comprising a short-wavelength LED and a re-emitting semiconductor construction, wherein the re-emitting semiconductor construction comprises at least one potential well not located within a pn junction. The potential well(s) are typically quantum well(s). The adapted LED may be a white or near-white light LED. The re-emitting semiconductor construction may additionally comprise absorbing layers surrounding or closely or immediately adjacent to the potential well(s). In addition, graphic display devices and illumination devices comprising the adapted LED according to the present invention are provided.
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Citations
38 Claims
- 1. An adapted LED comprising an LED and a re-emitting semiconductor construction, wherein the re-emitting semiconductor construction comprises a first potential well having a first transition energy and an absorbing layer closely adjacent to the first potential well, the absorbing layer having a band gap energy greater than the first transition energy and smaller than an energy of a photon emitted by the LED.
Specification