We have developed phosphor-free InGaN/GaN/AlGaN dot-in-a-wire core-shell white light emitting diodes, which can break the carrier injection efficiency bottleneck of conventional nanowire white light emitting diodes, leading to a dramatic enhancement of the output power. Additionally, such phosphor-free nanowire white light emitting diodes can deliver a very high color rendering index (CRI) of ~92-98.
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Zetian Mi ; Hieu P. T. Nguyen ; Shaofei Zhang ; Ashfiqua T. Connie ; Md G. Kibria, et al.
Phosphor-free InGaN/GaN/AlGaN core-shell dot-in-a-wire white light-emitting diodes
", Proc. SPIE 9003, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII, 900306 (February 27, 2014); doi:10.1117/12.2041284; http://dx.doi.org/10.1117/12.2041284