Figure 2
From: Optimisation of GaN LEDs and the reduction of efficiency droop using active machine learning
Top row: Simulated room temperature EL internal quantum efficiency of the best LED structure known at each learning step.
Bottom row: Efficiencies predicted by the machine learning algorithm versus simulated efficiencies for structures unseen by the algorithm (out of sample) after 150 (left) and 1000 (right) iterations. The error bars indicate the uncertainty of the machine learning model.
