Jiawen Fang

10 Questions 12 Answers 0 Followers

Questions related from Jiawen Fang

What application can zinc sulfide(ZnS) with blue emission be applied to?

I have synthesized zinc sulfide (ZnS) with scale around 80 nm. The solution is white,but, interestingly, exhibits blue especially in the irradiation. When the solution gets dried, the remaining is...

03 June 2016 7,424 4 View

How might I analyze the FTIR spectrum of graphitic carbon nitride over 3000 -3500 cm-1 ?

I have synthesized graphitic cabon nitride according to literature. However,I am rather confused with the FTIR spectra of the as-prepared carbon nitride. It displayed gradually shifting to higher...

02 July 2015 4,349 3 View

Should I normalize the nitrogen spectra from two different samples during the XPS analysis process?

I have two samples which consist of nitrogen and carbon element. To reveal the chemical environment of carbon and nitrogen element, I did XPS analysis. The intensity of nitrogen/carbon spectra of...

20 March 2015 3,714 5 View

What can we learn from temperature dependent EPR spectra?

What is implied if the intensity EPR spectra decreased a lot as temperature increased? What is implied if the intensity EPR spectra didn't change much as temperature increased? My sample is...

15 January 2015 378 13 View

What's the relationship between decomposition temperature and pressure?

What's the relationship between decomposition temperature and pressure? As we know, materials synthesized in hydrothermal method would endure high pressure during the prcocess. How would...

24 September 2014 6,711 1 View

What is the relationship between defect and recombination of photogenerated carriers?

In some place, I saw the reference said "defect would help suppress the recombination of carrier, thus help improve photocatalytic reactivity". However, in some other place, I saw "defect would be...

19 September 2014 2,792 1 View

How do I determine if crystal grows and the specific direction from TEM images?

See above. Thank you.

01 September 2014 5,565 2 View

Any way to keep pure magnesium from being oxidized in high temperature?

Our heating furnace is not a vacuum furnace. Any way to keep pure magnesium from being oxidized in high temperature (600 degree)? Any idea except buying a vacuum furnace?

28 August 2014 3,882 2 View

Do you know any book related to the movement of electron, atom, molecule when a chemical reaction occurs?

I am always curious and confused with the movement of electron, molecule et al when chemical reactions occurred. Maybe the word "movement" is not quite appropriate. I am interested in the way how...

12 August 2014 361 3 View

How to analyze the XPS valence band spectra?

My work is related to the induced defect in zinc oxide. To study its valence band, I did the XPS. However, I don't know how to analyze this? What should I keep in mind when I am analyzing?

21 June 2014 1,044 5 View