Electronic Properties of Ceramic Films - PowerPoint PPT Presentation

Loading...

PPT – Electronic Properties of Ceramic Films PowerPoint presentation | free to view - id: 526530-NzBmN



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Electronic Properties of Ceramic Films

Description:

... thin films Sol-gel process Refine process Investigate properties of the thin films Sol-gel process SrRuO3 sol-gel RuCl3 Ethanol Water SrAc2 H2O2 Black More ... – PowerPoint PPT presentation

Number of Views:124
Avg rating:3.0/5.0
Slides: 19
Provided by: TimJura
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Electronic Properties of Ceramic Films


1
Electronic Properties of Ceramic Films
  • Tim Jurasevich
  • Advisor Dr. Kvam

2
Outline
  • Background Info
  • Goals
  • Procedure
  • Results
  • Conclusions

3
Perovskites
  • ABO3
  • Middle atom can move
  • Cubic above Curie temperature
  • Structure changes below Curie temperature
  • Permanent dipole

4
Conductive Metal Oxides
  • Conductive
  • Middle atom wont move
  • Not capacitive
  • Ferroelectric Fatigue

5
SrRuO3
  • Orthorhombic
  • a 5.57 Å
  • b 7.86 Å
  • c 5.54 Å
  • Nearly Tetragonal

6
LaNiO3
  • Rhombohedral
  • a 5.45 Å
  • Low degree of tilt
  • Nearly Cubic

7
Research Goals
  • Create Strontium Ruthenate (SrRuO3) and Lanthanum
    Nickelate (LaNiO3) thin films
  • Sol-gel process
  • Refine process
  • Investigate properties of the thin films

8
Sol-gel process
  • SrRuO3 sol-gel
  • RuCl3
  • Ethanol
  • Water
  • SrAc2
  • H2O2
  • Black
  • More black
  • LaNiO3 sol-gel
  • La(NO3)3
  • 2-methoxyethanol
  • MEA
  • NiAc2
  • Dark Blue

9
Sol-gel process
  • Spin coated
  • SrRuO3 on Silicon
  • LaNiO3 on Glass
  • Annealed
  • SrRuO3 _at_ 800C
  • LaNiO3 _at_ 700C

10
Visual Inspection
11
Sputtering Platinum
  • Platinum stripes sputtered along the edges and in
    the middle
  • Lots of platinum required for good electrode

12
Optical Microscopy
13
X-Ray Diffraction
14
X-Ray Diffraction
15
X-Ray Diffraction
16
Resistivity
  • SrRuO3
  • ? 350 µ?cm
  • Ideal 300 µ?cm
  • LaNiO3
  • ? 700 µ?cm
  • Ideal 600 µ?cm

17
Conclusions
  • SrRuO3 and LaNiO3 can be prepared by sol-gel
    methods
  • Both thin films exhibit fairly low resistivities
  • Process variations affect crystallographic
    texture

18
Thank You
  • Questions?
  • Comments?
About PowerShow.com