Pescaglini, Andrea; Gocalińska, Agnieszka M.; Bogusevschi, Silviu; Moroni, Stefano T.; Juska, Gediminas; Mura, Enrica E.; Justice, John; Corbett, Brian M.; O'Reilly, Eoin P.; Pelucchi, Emanuele

2018

Unknown

Acs Photonics

Three-dimensional Self-assembled Columnar Arrays of AlInP Quantum Wires for Polarized Micron-sized Amber Light Emitting Diodes

In Press

Altmetric: 2 ()

Self-assembled nanowires Columnar nanowire Yellow LED Polarized LED

A three-dimensional ordered and self-organized semiconductor system emitting highly-polarized light in the yellow-orange visible range (580-650 nm) is presented, comprising self-assembled in-plane AlInP wires vertically stacked in regularly-spaced columns. More than 200 wires per column without detectable defect formation could be stacked. Theoretical simulations and temperature-dependent photoluminescence provided a benchmark to engineer multilayered structures showing internal quantum efficiency at room temperature larger than comparable quantum wells emitting at similar wavelengths. Finally, proof-of-concept light emitting diodes (LED) showed a high degree of light polarization and lower surface parasitic currents than comparable quantum well LEDs, providing an interesting perspective for high-efficiency polarized yellow-orange light emitting devices.

2330-4022

http://dx.doi.org/10.1021/acsphotonics.7b01257

10.1021/acsphotonics.7b01257

Science Foundation Ireland

IPIC award 12/RC/2276, grant 10/IN.1/I3000, 15/IA/2864