Julien Sourice

4 Questions 17 Answers 0 Followers

Questions related from Julien Sourice

ZnO coated nanoparticles : Zn(Ac)2 ?

Hi, I have seen many publications about the homogeneous precipitation of ZnO nanocrystals using Zn(Ac)2 and triethanolamine. Do you think heterogeneous precipitation can be achieved over SiO2...

24 October 2016 7,525 4 View

KOH etching solution / SiO2 above Si ?

Hi ! I would like to know if someone has an experience of etching silica deposited above polycrystaline silicon nanoparticles using only KOH or NaOH (so no HF !). For example : if I use a...

18 October 2016 2,387 8 View

Is there any thermodynamically stable suboxide that can be obtained from heat treatment of nano-silicon under air, other than SiO2?

This question is related to my previous one ! I wonder if amorphous silicon can form intermediately another oxide than SiO2, due to better diffusion of O2 into non crystalline structure. Thanks!

13 April 2015 8,040 3 View

How can I interpret many oxidation waves on amorphous silicon TGA ?

Dear all, I have done TGA on amorphous and crystalline silicon nanoparticles (< 30 nm) between 40 and 1500 °C under air, with 10°.min-1 heat rate. For the crystalline nanoparticles, a...

03 April 2015 7,611 5 View