{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/108190"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/108190","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Scanning tunneling microscopy and spectroscopy of tip-induced direct writing of nanometallization in ultra-high vacuum","abstract":"This thesis discusses scanning tunneling microscopy (STM) nanometallization on Si(100):H of HfB2 and MgB2. We first give an introduction to graphene nanoribbons (GNRs) along with STM and the techniques therein. We found that with STM, self-standing nanoscale features including dots, wires, and 3D structures can be made. The steps required in STM nanometallization are reduced compared with traditional lithographic techniques that involve photoresist, etching, and metal deposition. STM nanometallization affords simple, clean, and fast metal deposition. Ti evaporation is also discussed to prevent physisorption of precursor molecules that promote unwanted and unintended effects. In addition, nanocontacts between a carbon nanotube and HfB2 and MgB2 are presented. STS results confirm that the bandgap energy of the carbon nanotube is unperturbed by nanomanipulation and nanocontacts with metallic HfB2. Finally, ongoing work is discussed and future work is proposed in the last part of this thesis.","abstract_html":"This thesis discusses scanning tunneling microscopy (STM) nanometallization on Si(100):H of HfB2 and MgB2. We first give an introduction to graphene nanoribbons (GNRs) along with STM and the techniques therein. We found that with STM, self-standing nanoscale features including dots, wires, and 3D structures can be made. The steps required in STM nanometallization are reduced compared with traditional lithographic techniques that involve photoresist, etching, and metal deposition. STM nanometallization affords simple, clean, and fast metal deposition. Ti evaporation is also discussed to prevent physisorption of precursor molecules that promote unwanted and unintended effects. In addition, nanocontacts between a carbon nanotube and HfB2 and MgB2 are presented. STS results confirm that the bandgap energy of the carbon nanotube is unperturbed by nanomanipulation and nanocontacts with metallic HfB2. Finally, ongoing work is discussed and future work is proposed in the last part of this thesis.","abstract_has_math":false,"creators":["Huang, Pin-Chiao"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Lyding, Joseph W."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2020,"date_issued":"2020-08-26T23:58:48Z","date_published":"2020-08-26T23:58:48Z","updated_at":"2026-07-22T22:24:47Z","subjects":["STM","Nanometallization","STS"],"languages":["en"],"rights":["Copyright 2020 Pin-Chiao Huang"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/108190","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Lyding, Joseph W."]},{"key":"dc:creator","label":"Author","values":["Huang, Pin-Chiao"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2020-08-26T23:58:48Z","2022-08-26T23:58:55Z","2020-05-13","2020-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["STM","Nanometallization","STS"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2020 Pin-Chiao Huang"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/108190"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This thesis discusses scanning tunneling microscopy (STM) nanometallization on Si(100):H of HfB2 and MgB2. We first give an introduction to graphene nanoribbons (GNRs) along with STM and the techniques therein. We found that with STM, self-standing nanoscale features including dots, wires, and 3D structures can be made. The steps required in STM nanometallization are reduced compared with traditional lithographic techniques that involve photoresist, etching, and metal deposition. STM nanometallization affords simple, clean, and fast metal deposition. Ti evaporation is also discussed to prevent physisorption of precursor molecules that promote unwanted and unintended effects. In addition, nanocontacts between a carbon nanotube and HfB2 and MgB2 are presented. STS results confirm that the bandgap energy of the carbon nanotube is unperturbed by nanomanipulation and nanocontacts with metallic HfB2. Finally, ongoing work is discussed and future work is proposed in the last part of this thesis.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-05-01","The student, Pin-Chiao Huang, accepted the attached license on 2020-05-12 at 13:44.","The student, Pin-Chiao Huang, submitted this Thesis for approval on 2020-05-12 at 14:05.","This Thesis was approved for publication on 2020-05-13 at 15:34.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15356 on 2020-08-25 at 17:31:14","Made available in DSpace on 2020-08-26T23:58:48Z (GMT). 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We first give an introduction to graphene nanoribbons (GNRs) along with STM and the techniques therein. We found that with STM, self-standing nanoscale features including dots, wires, and 3D structures can be made. The steps required in STM nanometallization are reduced compared with traditional lithographic techniques that involve photoresist, etching, and metal deposition. STM nanometallization affords simple, clean, and fast metal deposition. Ti evaporation is also discussed to prevent physisorption of precursor molecules that promote unwanted and unintended effects. In addition, nanocontacts between a carbon nanotube and HfB2 and MgB2 are presented. STS results confirm that the bandgap energy of the carbon nanotube is unperturbed by nanomanipulation and nanocontacts with metallic HfB2. Finally, ongoing work is discussed and future work is proposed in the last part of this thesis.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-05-01","The student, Pin-Chiao Huang, accepted the attached license on 2020-05-12 at 13:44.","The student, Pin-Chiao Huang, submitted this Thesis for approval on 2020-05-12 at 14:05.","This Thesis was approved for publication on 2020-05-13 at 15:34.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15356 on 2020-08-25 at 17:31:14","Made available in DSpace on 2020-08-26T23:58:48Z (GMT). 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