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20022024
most citedDirect Measurement of Auger Electrons Emitted from a Semiconductor Light-Emitting Diode under Electrical Injection: Identification of the Dominant Mechanism for Efficiency Droop

672 citations · 2k across the 19 of their papers we have counts for

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5 papers · 1 filter

cond-mat.mes-hall2022★ 13 cited

Evidence of localization effect on photoelectron transport induced by alloy disorder in nitride semiconductor compounds

Mylène Sauty, Nicolas M. S. Lopes, Jean-Philippe Banon +7

Near-bandgap photoemission spectroscopy experiments were performed on p-GaN and p-InGaN/GaN photocathodes activated to negative electron affinity. The photoemission quantum yield o…

cond-mat.mes-hall2020★ 33 cited

Evidence for trap-assisted Auger recombination in MBE grown InGaN quantum wells by electron emission spectroscopy

Daniel Myers, Andrew Espenlaub, Kristina Gelzinyte +5

We report on the direct measurement of hot electrons generated in the active region of blue light-emitting diodes grown by ammonia molecular beam epitaxy by electron emission spect…

cond-mat.mes-hall2018★ 288 cited

Donors and Deep Acceptors in -Ga2O3

Adam T. Neal, Shin Mou, Subrina Rafique +9

We have studied the properties of Si, Ge shallow donors and Fe, Mg deep acceptors in -Ga2O3 through temperature dependent van der Pauw and Hall effect measurements of samples gr…

cond-mat.mes-hall2018★ 45 cited

Evidence of nanoscale Anderson localization induced by intrinsic compositional disorder in InGaN/GaN quantum wells by scanning tunneling luminescence spectroscopy

W. Hahn, J. -M. Lentali, P. Polovodov +11

We present direct experimental evidences of Anderson localization induced by the intrinsic alloy compositional disorder of InGaN/GaN quantum wells. Our approach relies on the measu…

cond-mat.mes-hall2009★ 33 cited

Current-Induced Spin Polarization in Gallium Nitride

W. F. Koehl, M. H. Wong, C. Poblenz +4

Electrically generated spin polarization is probed directly in bulk GaN using Kerr rotation spectroscopy. A series of n-type GaN epilayers are grown in the wurtzite phase both by m…