Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/233964
Title: SELF-ASSEMBLY OF NANOWIRES ON GERMANIUM-BASED SUBSTRATES
Authors: LYU JING
ORCID iD:   orcid.org/0000-0002-5039-1965
Keywords: Semiconductor surfaces, Atomic wires, Self-assembly, Molecular nanowires, STM, DFT
Issue Date: 13-Jun-2022
Citation: LYU JING (2022-06-13). SELF-ASSEMBLY OF NANOWIRES ON GERMANIUM-BASED SUBSTRATES. ScholarBank@NUS Repository.
Abstract: Silicon-based platforms have encountered issues for high-speed circuit applications because of the low carrier mobility. Germanium substrates therefore grow to be a hopeful candidate for designing high-speed semiconductor devices. Importantly, one-dimensional (1D) nanowires (NWs) self-assembled onto metal atoms modified Ge(001) substrates have attracted great interests due to their novel properties. In this thesis, we explored the growth mechanism of atomic NWs on Pt/Ge(001) surfaces, and proposed a growth pathway for the NWs based on the DFT calculations. Moreover, we studied the possibility of integrating organic molecular NWs onto pre-patterned Pt-induced NWs on Ge(001) surfaces. The designed molecular NWs integrated with the NWs on Ge(001) surfaces represent an exemplary showcase for the fabrication of molecular NWs on semiconductor surfaces. Finally, we studied the atomic configurations and electronic behavior of NWs on Au/Ge(001) surfaces, and provided strong evidence for reconciling the long-standing controversy about the electronic behavior of NWs on Au/Ge(001) surfaces.
URI: https://scholarbank.nus.edu.sg/handle/10635/233964
Appears in Collections:Ph.D Theses (Open)

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