Improved carrier injection and confinement in InGaN light-emitting diodes containing GaN/AlGaN/GaN triangular barriers Project supported by the National Key Research and Development Program of China (Grant Nos. 2017YFB0403100 and 2017YFB0403101), the National Natural Science Foundation of China (Grant Nos. 61404114, 61504119, and 11004170), the China Postdoctoral Science Foundation (Grant No. 2017M611923), and the Jiangsu Planned Projects for Postdoctoral Research Funds, China (Grant No. 1701067B). |
(color online) Electrostatic fields near the active region of the three LEDs at 150 mA, with inset showing a magnified diagram of electrostatic field in the last QW. |