High-efficiency AlGaInP light-emitting diodes for solid-state lighting applications

  title={High-efficiency AlGaInP light-emitting diodes for solid-state lighting applications},
  author={Th. Gessmanna and E. Fred Schubert},
AlGaInP lattice matched to GaAs is suited for light-emitting diodes ~LEDs! operating in the red, orange, yellow, and yellow–green wavelength range. Such long-wavelength visible-spectrum devices will play an important role in solid-state lighting applications. This review discusses the major classes of AlGaInP device structures, including absorbing-substrate ~AS! LEDs, absorbing substrate LEDs enhanced by distributed-Bragg-reflectors ~DBRs!, transparent substrate ~TS! LEDs, thin-film ~TF! LEDs… CONTINUE READING
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