2026-09-20T12:04:53Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/29767 2023-07-10 col_2142_14789 col_2142_5131 com_2142_14788 com_2142_8903 com_2142_5130

text Braun, Paul V. Blitz, Ian 2012-02-06T20:15:14Z 2012-02-06T20:15:14Z 2011-12 2012-02-06T20:15:14Z 2011-12 Understanding of phonon mediated thermal transport properties in nanostructured materials is essential for the intelligent design of next-generation microelectronic and thermoelectric devices. Presented here is the study of the thermal transport properties of model organic-inorganic, nanoscopically layered systems for the purpose of elucidating the dependence of bulk thermal conductivity on the nanostructure of the material and, specifically, the role that limited interfacial thermal conductance plays. We measured the bulk thermal conductivity of various organically modified montmorillonite clays as a function of several variables. Thermal conductivities of the organically modified clays were measured to be approximately 0.09 W/mK and were relatively independent of the variables investigated. This suggests the dominance of the organic-inorganic interfacial conductance in the determination of bulk thermal conductivity of this system and was determined from the thermal conductivity measurements to be approximately 150 MW/m2K, which is consistent with measured interfacial conductance in similarly coupled systems. Organic-inorganic perovskite structures were also investigated to determine the effect that varying crystal structure plays in determining thermal bulk thermal conductivity. While the data is too sparse to draw strong conclusions, current data suggests little dependence on the subtle changes in the crystal structure observed here. However, further study of this system may be warranted. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-12-06T19:28:14Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Blitz_Ian.doc: 10680832 bytes, checksum: 479e00837aaaeee17df07a7fcd35bbd8 (MD5) Blitz_Ian.pdf: 5602484 bytes, checksum: c6382cf01aac6130a3b049814cb79e2f (MD5) Made available in DSpace on 2012-02-06T20:15:14Z (GMT). No. of bitstreams: 3 Blitz_Ian.pdf: 5602492 bytes, checksum: 77149544329efa9ee5377e08d90bb08a (MD5) license.txt: 4057 bytes, checksum: 44db509db59c60f3b202ace6c756cd51 (MD5) Blitz_Ian.doc: 10680320 bytes, checksum: ffe6760d88bf850ec676a0c8d6317e12 (MD5) http://hdl.handle.net/2142/29767 en Copyright 2011 Ian Blitz thermal thermal transport nanostructure superlattice montmorillonite perovskite organic-inorganic Thermal transport in self-assembled nanostructures Dissertation / Thesis Chemistry 1413 Chemistry 0335 University of Illinois at Urbana-Champaign Thesis M.S. MS:Chemistry -UIUC 10KS0335MS