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Questions related from Zhi Li
i try to find materials with high resistivity (1E-3 to 1E-4 Ohm.m) compared to metals (1E-8 Ohm.m). several materials I have known, such as ITO or Tin oxide and ZnO, they all need to anneal at...
09 September 2018 3,315 1 View
I have grown GaN on stripe patterned Si substrate by MOCVD with 100nm AlN buffer. But the melt-back etching easily happened when GaN growth tempetature above 1000oC. However, some other groups...
04 April 2016 6,656 1 View
I want to get 11-24 reciprocal space mapping, the sample surface is 11-22, so it is an asymmetric scan. After I get 2theta/omega vs rel_omega, how do I transfer it to the qz vs qx map? Normally,...
10 October 2015 7,450 4 View
when growing AlGaN on GaN template, cracking always happens. do you have any idea to reduce cracking? i am trying to use the voids inside the GaN template to relieve the strian, anybody has ideas...
09 September 2015 992 6 View
For semi/non-polar GaN grown on sapphire, we always found that at different azimuth angle, the on-axis XRD rocking curve FWHM is very different. Some paper mentioned that this kind of anisotropic...
06 June 2015 3,248 3 View
