2026-09-21T00:23:13Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/761212022-01-13T07:54:33Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Yang Shao-Horn.
Breucop, Justin Daniel
Massachusetts Institute of Technology. Dept. of Materials Science and Engineering.
Massachusetts Institute of Technology. Department of Materials Science and Engineering
2013-01-07T21:22:37Z
2013-01-07T21:22:37Z
2012
2012
http://hdl.handle.net/1721.1/76121
821067321
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 29).
Raman spectroscopy is used to probe the structural change of Lanthanum Strontium Cobaltite (La1.xSrxCoO 3 -8) thin films across change in composition (0%-60% strontium) and temperature (30*C-520°C). Raman shift peaks were identified and correlated with specific vibrational modes. Results were consistent with relevant data, but no transition to the high spin state was observed above 200°C. Compositions were compared to oxygen catalytic data to investigate success in high temperature electrochemical applications. No structural phase changes were found in the research of this thesis, interesting effects in the surface regime were observed and possible explanations are offered. Future research should focus on resolving the surface regime via altered experimental set up. Keywords: LSC, LCO, Raman, in silu.
by Justin Daniel Breucop.
S.B.
36 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Materials Science and Engineering.
In situ Raman spectroscopy of lanthanum-strontium-cobaltite thin films
Thesis
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Publication
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<Abstract>Raman spectroscopy is used to probe the structural change of Lanthanum Strontium Cobaltite (La1.xSrxCoO 3 -8) thin films across change in composition (0%-60% strontium) and temperature (30*C-520°C). Raman shift peaks were identified and correlated with specific vibrational modes. Results were consistent with relevant data, but no transition to the high spin state was observed above 200°C. Compositions were compared to oxygen catalytic data to investigate success in high temperature electrochemical applications. No structural phase changes were found in the research of this thesis, interesting effects in the surface regime were observed and possible explanations are offered. Future research should focus on resolving the surface regime via altered experimental set up. Keywords: LSC, LCO, Raman, in silu.</Abstract>
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