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Vibrational Properties of Defective Oxides and 2D Nanolattices
Английски език
324 b
30 дни за връщане на стоката
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Ge and III-V compounds, semiconductors with high carrier mobilities, are candidates to replace Si as the channel in MOS devices. 2D materials like graphene and MoS_2 are also envisioned to replace Si in the future. This thesis is devoted to the first-principles modeling of the vibrational properties of these novel channel materials.§The first part of the thesis focuses on the vibrational properties of various oxides on Ge, making it possible to identify the vibrational signature of specific defects which could hamper the proper functioning of MOSFETs.§The second part addresses the electronic and vibrational properties of novel 2D materials like silicene and germanene, the Si and Ge 2D counterparts of graphene. The interaction of these 2D materials with metallic and non-metallic substrates is investigated. It was predicted, for the first time and later experimentally confirmed, that silicene can be grown on a non-metallic.§
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Английски език
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