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High performance temperature controlled UHV sample holder.

Hugo P Marques1, David C Alves, Ana R Canário

  • 1CEFITEC, Physics Department, New University of Lisbon, 2829-516 Caparica, Portugal. hpm@fct.unl.pt

The Review of Scientific Instruments
|April 7, 2007
PubMed
Summary

This study introduces a versatile sample holder for surface science, enabling precise temperature control from liquid nitrogen temperatures to 1300 K. The design facilitates rapid heating and cooling for advanced sample preparation and thermal desorption spectroscopy.

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Area of Science:

  • Surface Science
  • Materials Science
  • Spectroscopy

Background:

  • Controlled temperature manipulation is crucial for surface science experiments.
  • Common procedures include heating/cooling ramps, high-temperature spikes, and annealing.
  • Existing methods may lack the required temperature range or control.

Purpose of the Study:

  • To design and construct a multipurpose sample holder for advanced surface science applications.
  • To achieve a wide operational temperature range and rapid thermal cycling.
  • To minimize background interferences in thermal desorption spectroscopy.

Main Methods:

  • Development of a novel sample holder design.
  • Integration into a multitechnique surface analysis apparatus.

Related Experiment Videos

  • Testing of temperature control, heating/cooling rates, and thermal inertia.

    • Main Results:

    • The sample holder operates from liquid nitrogen (LN(2)) temperature to approximately 1300 K.
    • Achieved heating rates up to 50 K/s and cooling rates down to -20 K/s.
    • Flash heating from LN(2) to 1300 K and back to LN(2) in under 100 seconds.

    Conclusions:

    • The developed sample holder significantly enhances capabilities for sample preparation in surface science.
    • It enables a broader range of experiments, including advanced thermal desorption spectroscopy.
    • The design offers precise temperature control and rapid thermal cycling for diverse surface analysis techniques.