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How to measure the TiO2 coationg on the ITO?

Printed From: Sol-Gel Gateway
Category: Sol-Gel Forum
Forum Name: Characterization Techniques
Forum Discription: Discussion on the techniques used to characterize the entire Sol-Gel process from the solution to the material
URL: http://www.solgel.com/sgforum/forum_posts.asp?TID=974
Printed Date: 21 September 2019 at 7:54pm


Topic: How to measure the TiO2 coationg on the ITO?
Posted By: eddyliu
Subject: How to measure the TiO2 coationg on the ITO?
Date Posted: 21 August 2006 at 2:28am
Hello every researher: I wanted to ask some problem which i got now. I need to measure the surface area(BET) of TiO2 film on ITO.But,i can not to take out the TiO2 film from ITO.Because i need to test the film's surface area,not the power.So,can anyone support me to do this.Thanks. by the way,have anyone know how to use UV-vis measure  the thickness of film.please show me the detail,thank you!!



Replies:
Posted By: FonchoTiO2
Date Posted: 23 August 2006 at 1:31am
Hey Eddy Liu!

I have a problem of my own, and since you have already a TiO2 thin film, I was wondering if you could possibly give me the exact references of the technique you used, or if the film was bought from an outside Lab. I'm asking this because I'll experiment with TiO2 films in a flow reactor, and I wished you could explain me the lab procedure to coat some film with TiO2.

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Indivisa Manent!
Moises A. Romero
Photocatalysis


Posted By: eddyliu
Date Posted: 23 August 2006 at 4:35am
Hello FonchoTiO2:i use doctor blade method to spray on the ITO glass.it is simple way to do this. i use glass rod to scrape TiO2 on the ITO, make it to form a  uniform film. Just like this, that is simple.right?


Posted By: DEFRANOUX
Date Posted: 02 October 2006 at 6:05am

Hi,

In my company, we have developped a mehod to measure the surface area, porosity , pore size distribution, thickness , and n&k of thin films like TiO2 on any substrate, like TiO2 on ITO. We can measure at the same time the parameter of the TiO2 and also check ITO characteristics. It is called Ellipsometry porosimetry , it is a method based on the well know ellipsometry method, non contact , optical method and the also well known gas adsorption. It does require any scratch of the film , no vaccum, no low temperature. It is also non desctructive.

If you need informations, send me an e-mail at christophe.defranoux@sopra-sa.com 

 



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Christophe DEFRANOUX


Posted By: K. K. Saini
Date Posted: 21 December 2006 at 5:10am
we are making TiO2 films on glass substrates by sol-gel technique. These films are scratch resistance and inert also. We can send few samples if you tell me the dimensions you require.

Dr. K. K. Saini


Posted By: DEFRANOUX
Date Posted: 21 December 2006 at 5:36am

Hi,

Dimension of the substrate is can be up to 4 * 2 cm. Our spot size on the sample is 500 * 500 µm.
The typical spot size that we can measure is 1 - 30 nm in RADIUS. The TiO2 thickness of the layer should be typicaly less than 2 µm. The best is less than 1 µm.
We are ready to test measurement on your samples. Can you reply to me on my e-mail adress : christophe.defranoux@sopra-sa.com



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