The Nanoscale World

Scanning Hot Samples

rated by 0 users
Not Answered This post has 0 verified answers | 4 Replies | 1 Follower

Top 10 Contributor
99 Posts
Points 958
Bruker Employee
SeanHand posted on Thu, Apr 29 2010 9:24 PM

What is the practical upper limit (if any) on temperature for TappingMode with a standard TESPA or RTESPA probe?

 

All Replies

Top 25 Contributor
30 Posts
Points 340

We us a thermal accessory that can heat a sample to ~250C.  The sample heater can be used with a cantilever holder that will heat the probe to the same temperature.  Usually large temperature steps require a re-tune of the lever as the resonance shifts with temperature.  The probes and certain samples could probably tolerate much higher temperatures but the scanner might be at risk. 

  • | Post Points: 10
Top 25 Contributor
26 Posts
Points 298
Bruker Employee

I've gone up to as high as 270C (and 350C in Vacuum) without a problem.

Peter

  • | Post Points: 12
Top 500 Contributor
1 Posts
Points 12
zeevs replied on Thu, May 6 2010 1:47 AM

How do you manage the drift in the image at these temperatures?

Ze'ev.

  • | Post Points: 12
Top 25 Contributor
30 Posts
Points 340

There's no doubt that as the temperature changes things will shift around.  For xy drift a period of time may be required for the sample stabalize at the new temperature. Typically the probe is withdrawn from the surface while the temperature is ramping.   In tapping mode large temperature changes cause a shift in resonance that requires retuning the cantilever.   The method used to hold the sample down is also important.  For instance "sticky dots" would not be a good method for sample mounting with heating experiments.  High temperature epoxy is a better choice.

  • | Post Points: 10
Page 1 of 1 (5 items) | RSS
Copyright (c) 2011 Bruker Instruments