Follow-up: Request & update for new materials allowed in the clean room

Mahnaz Mansourpour mahnaz at stanford.edu
Fri Jul 15 09:03:05 PDT 2011


Hi Champ,

i just checked with Ed and your request is granted.

Sorry for the delay, two of us had thought that the other person has 
gotten back to you.

mahnaz

On 7/14/2011 5:18 PM, Champ Phuthong wrote:
> Hi Mahnaz,
>
> I wonder how my request for Niobium-doped Strontium Titanate (Nb:SrTiO3) request is going now. I would like to a use the micromanipulator 6000 (number 5) for the electrical measurement of my substrates as well. Also, in number 5, I need to apply Ag-paint on my substrates to make the contact conductive for 4-point probing and micromanipulator 6000.
>
> I'll send you the MSDS for the sample from American Element later as soon as I get it. I am looking forward for your response.
>
> Regards,
> Champ
>
> ----- Forwarded Message -----
> From: "Champ Phuthong"<phuthong at stanford.edu>
> To: mahnaz at snf.stanford.edu
> Sent: Wednesday, July 6, 2011 2:48:10 PM
> Subject: Re: Request for new materials allowed in the clean room
>
> Hi Mahnaz,
>
> MSDS from MTI&  Corp and Superconix are attached here. For now, I would like to use the 4-point probing to measure the resistance/resistivity of my Nb:SrTiO3 samples, before and after (if needed) annealing.
> In the future, I plan to build the very thin, flow-through photoelectrochemical cells, but I have not figured it out about the process that might need the SNF facility.
>
> Regards,
> Champ
>
> ----- Original Message -----
> From: "Champ Phuthong"<phuthong at stanford.edu>
> To: mahnaz at snf.stanford.edu
> Sent: Tuesday, July 5, 2011 5:50:23 PM
> Subject: Request for new materials allowed in the clean room
>
> Dear Mahnaz,
>
> My name is Champ Phuthong, an MSE student in Lindenberg's group. As my special material request to SpecMat at snf.stanford.edu was bounced, I forward the request to you, according to Maureen.
> I would like to request your permission for my samples to be measured the resistance/resistivity in the clean room. According to the procedures, I have provided the following information:
>
> 1. Contact Information: Frank Chen, Coral login =fc3, Phone Number = 5053104738, email = fc3 at stanford.edu,
> Champ Phuthong, Coral login (soon), Phone Number = 6507967475, email = phuthong at stanford.edu
> our PI = Aaron Lindenberg.
>
> Frank Chen is my group member and an SNF lab member, he will be trained for the 4-point probe measurement.
> I myself will apply for the SNF labmember and will be trained too.
>
> 2. The specification of materials: 0.1 wt% Nb-doped SrTiO3
> Common name= -
> Trade name = Niobium-doped Strontium Titanate
> CAS Number = 1206-05-9 (that of Strontium Titanate)
> Attached is the materials' MSDS (The manufacturing company tells me that MSDS for Nb:SrTiO3 can be replaced by that for SrTiO3)
> The Storage Group Identifier = G Non-Reactive Materials and Non-Hazardous Materials
> Main Hazardous Class = 11. Non Hazardous
> I categorized this according to my knowledge from MSDS attached, please correct me if you find any incorrect part.
>
> 3. Vendor/Manufacturer info: MTI Corporation (Materials Tech. Intl.) 860 South 19th Street
> Richmond, CA 94804, USA Tel: 510-525-3070, http://www.mtixtl.com/
>
> 4. Reason for request: It is the sample for photoanode of the photoelectrochemical cells. I would like to measure the sample's resistance/resistivity to check if I need to anneal it in order to make it so conductive that it works for my experiment. The company suggests that I use the 4-point probing.
>
> 5. Process Flow: Frank and I will measure the sample's resistance/resistivity using the 4-point probe machine.
>
> 6. Amount and form: 1 substrate at a time for testing, after annealing (if needed) to increase conductivity.
>
> 7. Storage: I will not store the sample at SNF.
>
> 8. Disposal: According to number 5., we will not dispose any waste or excess of the material.
>
> Also, we have a few samples coming for testing in 2-3 weeks. I am looking forward to your reply. If you have any question or concern or there are some parts that I fill wrong, please let me know.
>
> Your sincerely,
> Champ Phuthong
>
>



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