Polarized photoluminescence from partial dislocations in 4H-SiC

作者: Rii Hirano , Michio Tajima , Hidekazu Tsuchida , Kohei M. Itoh , Koji Maeda

DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.778-780.319

关键词:

摘要: Polarization characteristics of luminescence from partial dislocations (PDs) in 4H-SiC have been investigated by room-temperature photoluminescence (PL) imaging. After expansion Shockley stacking faults high-power laser irradiation, PL PDs tilted 6° their Burgers vector (6°-PDs) was observed with almost the same peak energy as that 30°-Si (g) PDs. The and 6°-PDs which were mobile under illumination both found to be polarized perpendicular dislocation lines. In contrast, immobile 30°-C(g) not polarized. present results suggest carriers bound anisotropic wave functions those 30°-C(g)PDs isotropic functions.

参考文章(19)
Matthew P. Peloso, Bram Hoex, Armin G. Aberle, Polarization analysis of luminescence for the characterization of silicon wafer solar cells Applied Physics Letters. ,vol. 98, pp. 171914- ,(2011) , 10.1063/1.3584857
Hiroki Sugimoto, Michio Tajima, Photoluminescence Imaging of Multicrystalline Si Wafers during HF Etching Japanese Journal of Applied Physics. ,vol. 46, pp. L339- L341 ,(2007) , 10.1143/JJAP.46.L339
Yutaka Ohno, Ichiro Yonenaga, Kotaro Miyao, Koji Maeda, Hidekazu Tsuchida, In-situ transmission electron microscopy of partial-dislocation glide in 4H-SiC under electron radiation Applied Physics Letters. ,vol. 101, pp. 042102- ,(2012) , 10.1063/1.4737938
S. Ha, M. Benamara, M. Skowronski, H. Lendenmann, Core structure and properties of partial dislocations in silicon carbide p-i-n diodes Applied Physics Letters. ,vol. 83, pp. 4957- 4959 ,(2003) , 10.1063/1.1633969
Kendrick X. Liu, Robert E. Stahlbush, Serguei I. Maximenko, Joshua D. Caldwell, Differences in emission spectra of Si- and C-core partial dislocations Applied Physics Letters. ,vol. 90, pp. 153503- ,(2007) , 10.1063/1.2721139
M. Skowronski, J. Q. Liu, W. M. Vetter, M. Dudley, C. Hallin, H. Lendenmann, Recombination-enhanced defect motion in forward-biased 4H–SiC p-n diodes Journal of Applied Physics. ,vol. 92, pp. 4699- 4704 ,(2002) , 10.1063/1.1505994
A. Galeckas, J. Linnros, P. Pirouz, Recombination-enhanced extension of stacking faults in 4H-SiC p-i-n diodes under forward bias Applied Physics Letters. ,vol. 81, pp. 883- 885 ,(2002) , 10.1063/1.1496498
A. Galeckas, J. Linnros, P. Pirouz, Recombination-induced stacking faults : Evidence for a general mechanism in hexagonal SiC Physical Review Letters. ,vol. 96, pp. 025502- 025502 ,(2006) , 10.1103/PHYSREVLETT.96.025502
Nadeemullah A. Mahadik, Robert E. Stahlbush, Joshua D. Caldwell, Karl D. Hobart, Ultraviolet Photoluminescence Imaging of Stacking Fault Contraction in 4H-SiC Epitaxial Layers Materials Science Forum. pp. 391- 394 ,(2012) , 10.4028/WWW.SCIENTIFIC.NET/MSF.717-720.391
Peder Bergman, H. Lendenmann, Per Åke Nilsson, Ulf Lindefelt, P. Skytt, Crystal Defects as Source of Anomalous Forward Voltage Increase of 4H-SiC Diodes Materials Science Forum. pp. 299- 302 ,(2001) , 10.4028/WWW.SCIENTIFIC.NET/MSF.353-356.299