{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/100689"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/100689","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Doubling of block copolymer line patterns by electron-beam-fabricated templates","abstract":"The doubling of block copolymer (BCP) line patterns by electron-beam-fabricated template patterns is presented. Difficulties in achieving low defect self-assembly within the narrow line patterns are discussed. To address these issues, experimental approaches were investigated of narrowing the polymer's minority block through solvent annealing, and adjusting length of the polymer brush responsible for functionalizing the template lines. While narrowed polymer lines were not achieved through solvent annealing, low defect self-assembly of BCP within doubling template patterns was achieved by utilizing a polymer brush of high molecular weight (28 kg mol -1).","abstract_html":"The doubling of block copolymer (BCP) line patterns by electron-beam-fabricated template patterns is presented. Difficulties in achieving low defect self-assembly within the narrow line patterns are discussed. To address these issues, experimental approaches were investigated of narrowing the polymer's minority block through solvent annealing, and adjusting length of the polymer brush responsible for functionalizing the template lines. While narrowed polymer lines were not achieved through solvent annealing, low defect self-assembly of BCP within doubling template patterns was achieved by utilizing a polymer brush of high molecular weight (28 kg mol -1).","abstract_has_math":false,"creators":["Oser, Kameron L"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.","school":null,"contributors":[],"advisors":["Karl K. Berggren."],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015","date_published":"2015","updated_at":"2026-07-22T22:22:08Z","subjects":["Electrical Engineering and Computer Science."],"languages":["eng"],"rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. 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