Hole injection from the sidewall of V-shaped pits into c-plane multiple quantum wells in InGaN light emitting diodes
Journal Article
·
· Journal of Applied Physics
- National Engineering Technology Research Center for LED on Si Substrate, Nanchang University, Nanchang 330047 (China)
The role which the V-shaped pits (V-pits) play in InGaN/GaN multiple quantum well (MQW) light emitting diodes (LEDs) has been proposed to enable the formation of sidewall MQWs, whose higher bandgap than that of the c-plane MQWs is considered to act as an energy barrier to prevent carriers from reaching the dislocations. Here, with increasing proportion of current flowing via the V-pits, the emission of the c-plane MQWs broadens across the short-wavelength band and shows a blueshift successively. This phenomenon is attributed to hole injection from the sidewall of V-pits into the c-plane MQWs, which is a new discovery in the injection mechanism of InGaN/GaN MQW LEDs.
- OSTI ID:
- 22492863
- Journal Information:
- Journal of Applied Physics, Vol. 118, Issue 16; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
Similar Records
Roles of V-shaped pits on the improvement of quantum efficiency in InGaN/GaN multiple quantum well light-emitting diodes
Controlling potential barrier height by changing V-shaped pit size and the effect on optical and electrical properties for InGaN/GaN based light-emitting diodes
3D numerical modeling of the carrier transport and radiative efficiency for InGaN/GaN light emitting diodes with V-shaped pits
Journal Article
·
Fri Nov 14 00:00:00 EST 2014
· Journal of Applied Physics
·
OSTI ID:22492863
+2 more
Controlling potential barrier height by changing V-shaped pit size and the effect on optical and electrical properties for InGaN/GaN based light-emitting diodes
Journal Article
·
Wed Jan 14 00:00:00 EST 2015
· Journal of Applied Physics
·
OSTI ID:22492863
+2 more
3D numerical modeling of the carrier transport and radiative efficiency for InGaN/GaN light emitting diodes with V-shaped pits
Journal Article
·
Sun May 15 00:00:00 EDT 2016
· AIP Advances
·
OSTI ID:22492863
+4 more