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Title: Computational electromagnetic modelling of InGaN/GaN nano-LEDs
Author: Fox, Sophia
ISNI:       0000 0004 7432 5609
Awarding Body: University of Bath
Current Institution: University of Bath
Date of Award: 2017
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This work focuses on the development for the electromagnetic optical modellingof a commercial III-nitride vertical LED/nano-LED based on the finite-differencetime-domain (FDTD) method. The material properties, boundary conditions andsource emission are thoroughly investigated. To achieve a reliable model, results obtained from FDTD using a near-to-far-field transform are compared with those obtained using experimental angular photoluminescence (PL). LED parameters are extracted to quantify the performance of the devices and predict the emission pattern of practically infeasible nanorod arrays on vertical LED structures. It is demonstrated the impact of the shape and dimensions of the nanorods has a significant impact on the light extraction efficiency, however further optimisation is required to significantly increase directionality.
Supervisor: Allsopp, Duncan Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available