Block diagram of equipment for yellow photoluminescence mapping in AlGaN/GaN heterostructures: (1) UV photodiode, (2) test wafer with AlGaN/GaN heterostructure, (3) mirror, (4) silicon photodiode, (5) glass lens, (6) filter for wavelength of yellow PL, (7) UV photodiode power system, (8) photodiode current amplifier, (9) computer, (10) Х–Y scanning unit.

 
 
  Part of: Gladysheva NB, Gruzdov VV, Kolkovskii YuV, Kontsevoy YuA, Pevtsov EF (2019) Control of yellow photoluminescence in AlGaN/GaN heterostructures. Modern Electronic Materials 5(2): 87-89. https://doi.org/10.3897/j.moem.5.2.51391