On the effect of N-GaN/P-GaN/N-GaN/P-GaN/NGaN built-in junctions in the n-GaN layer for InGaN/GaN light-emitting diodes
Demir, H. V.
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/26368
- Research Paper 
Optical Society of American (OSA)
N-GaN/P-GaN/N-GaN/P-GaN/N-GaN (NPNPN-GaN) junctions embedded between the n-GaN region and multiple quantum wells (MQWs) are systematically studied both experimentally and theoretically to increase the performance of InGaN/GaN light emitting diodes (LEDs) in this work. In the proposed architecture, each thin P-GaN layer sandwiched in the NPNPN-GaN structure is completely depleted due to the built-in electric field in the NPNPN-GaN junctions, and the ionized acceptors in these P-GaN layers serve as the energy barriers for electrons from the n-GaN region, resulting in a reduced electron over flow and enhanced the current spreading horizontally in the n- GaN region. These lead to increased optical output power and external quantum efficiency (EQE) from the proposed device. © 2014 Optical Society of America.
Showing items related by title, author, creator and subject.
Improved InGaN/GaN light-emitting diodes with a p-GaN/n-GaN/p-GaN/n-GaN/p- GaN current-spreading layer Zhang, Z.-H.; Tan, S.T.; Liu W.; Ju, Z.; Zheng, K.; Kyaw, Z.; Ji, Y.; Hasanov, N.; Sun X.W.; Demir, H. V. (Optical Society of American (OSA), 2013)This work reports both experimental and theoretical studies on the InGaN/GaN light-emitting diodes (LEDs) with optical output power and external quantum efficiency (EQE) levels substantially enhanced by incorporating ...
Understanding the plasmonic properties of dewetting formed Ag nanoparticles for large area solar cell applications Günendi, M.C.; Tanyeli I.; Akgüç G.B.; Bek, A.; Turan, R.; Gülseren O. (Optical Society of American (OSA), 2013)The effects of substrates with technological interest for solar cell industry are examined on the plasmonic properties of Ag nanoparticles fabricated by dewetting technique. Both surface matching (boundary element) and ...
Atar F.B.; Battal, E.; Aygun L.E.; Daglar, B.; Bayindir, M.; Okyay, A., K. (Optical Society of American (OSA), 2013)Hot electron photovoltaics is emerging as a candidate for low cost and ultra thin solar cells. Plasmonic means can be utilized to significantly boost device efficiency. We separately form the tunneling metal-insulator-metal ...