Xu Xiuwen

4 Questions 8 Answers 0 Followers

Questions related from Xu Xiuwen

How to determine whether a material is single-crystal?

I have read many papers reporting the synthesis of single-crystal graphene or pervoskite material. However, I have not gained a clear insight into how can we confirm the single-crystal phase? I...

22 March 2016 193 9 View

For the perovskite material synthesis, what is the exact effect of rapid nucleation and growth rate?

To my knowledge, the rapid nucleation would cause an undesirable grain size, thus creating abundant grain boundaries. With respect to quick growth rate, it is not suitable for single-crystal...

06 March 2016 3,363 4 View

How do I detect its work function or Fermi Energy in porous carbon materials?

since I am new in physics, I am not quite familiar with these concepts. If there are some misunderstanding, please help me to clarify the difference between work function and Fermi energy.

06 January 2016 7,076 4 View

When testing the stability of dye sensitized solar cells via a repeated EIS method, what is the exact meaning of relaxation at 0V?

when testing the stability of dye sensitized solar cells through a repeated EIS methods. Just as be reported , we should do CV scanning between each EIS mesurement. However, i can't catch the...

07 April 2015 6,436 2 View