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- Title
EBIC investigations on polar and semipolar InGaN LED structures.
- Authors
Knab, Manuel; Hocker, Matthias; Felser, Timo; Tischer, Ingo; Wang, Junjun; Scholz, Ferdinand; Thonke, Klaus
- Abstract
Polar and semipolar LED structures with InGaN quantum wells (QWs) were investigated in a scanning electron microscope (SEM) using simultaneously electron beam induced current (EBIC) and cathodoluminescence (CL). EBIC yields important information about depletion region, leakages, and the overall functionality of the pn-junction and allows to determine the diffusion length of the generated minority carriers on both sides of the pn-junction. Spectrally and spatially resolved CL measurements yield both, information about the QW quality and about centers of non-radiative recombination. EBIC measurements were carried out in top-view and in cross-section between
- Subjects
LIGHT emitting diode design &; construction; OPTICAL properties of indium gallium nitride; ELECTRON beam induced current; LUMINESCENCE; SCANNING electron microscopy
- Publication
Physica Status Solidi (B), 2016, Vol 253, Issue 1, p126
- ISSN
0370-1972
- Publication type
Article
- DOI
10.1002/pssb.201552284