The output power of a AlGaN-based single quantum well ultraviolet light-emitting diodes (LED) at wavelength 278 to 360 nm was discussed. Standard photolithography and dry etching techniques were used to build the device. The quantum efficiency of the LEDs was also studied in both the pulse and continuous wave modes. The results show that these devices have a high optical power of 4.5 mW in pulsed operation mode and 165 μW in continuous-wave (cw) mode.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)