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oai:www.ideals.illinois.edu:2142/34248 2023-07-10 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Gilbert, Matthew J. Estrada, Zachary 2012-09-18T21:07:50Z 2012-09-18T21:07:50Z 2012-08 2012-09-18T21:07:50Z 2012-08 As the scaling of electronic devices continues to decrease, the search for a low- power replacement for complementary metal-oxide semiconductor (CMOS) logic becomes increasingly important. A predicted room temperature phase transition from Fermi liquid to Bose-Einstein condensate of excitons in double layer graphene has potential for use in ultra-low power device applications. These devices operate based on coherent interlayer transport and could far outperform traditional CMOS devices both in switching speed and power efficiency. When examining the possibility of a room-temperature exciton condensate, it is important to consider the scattering of charge carriers by phonons in each of the constituent graphene monolayers. We use the non- equilibrium Green’s function (NEGF) formalism to examine the effect that carrier-phonon scattering has on transport in such a device. The simulations show that the effect of carrier-phonon scattering has a strong dependence on the device coherence length, the maximum distance that individual electrons or holes may travel into the gapped superfluid region. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-07-19T15:28:54Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 4 Estrada_Zachary.pdf: 1776951 bytes, checksum: fa79548eabf36b7babcd186c9131598e (MD5) Estrada_Zachary.pdf: 1777251 bytes, checksum: 3a2c70fc4d2c3ff1cda4443b28cea63c (MD5) Estrada_Zachary.tar.gz: 3348915 bytes, checksum: 7dc1b550ffee30499a67d79414b3b605 (MD5) Estrada_Zachary.pdf: 1776951 bytes, checksum: fa79548eabf36b7babcd186c9131598e (MD5) Made available in DSpace on 2012-09-18T21:07:50Z (GMT). No. of bitstreams: 3 Estrada_Zachary.pdf: 1776951 bytes, checksum: fa79548eabf36b7babcd186c9131598e (MD5) license.txt: 4065 bytes, checksum: eb0a05c73cf26ebe00055cf308cd43bf (MD5) Estrada_Zachary.tar.gz: 3348915 bytes, checksum: 7dc1b550ffee30499a67d79414b3b605 (MD5) http://hdl.handle.net/2142/34248 en Copyright 2012 Zachary J. Estrada Phonons Bose-Einstein Condensation non-equilibrium Green's function (NEGF) Electron-phonon interactions in double layer graphene superfluids Electrical & Computer Eng 1933 Electrical & Computer Engr 1200 University of Illinois at Urbana-Champaign Thesis M.S. MS:Electr & Computer Eng-UIUC 10KS1200MS