{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/34411"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/34411","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Investigation of flow-limited field-injection electrostatic spraying for nanofabrication and direct-write patterning: Application to dye-sensitized solar cells","abstract":"There is much interest in the development of technologies which can enhance the performance of dye-sensitized solar cells (DSCs), due to their promising efficiencies relative to the low cost of materials and manufacturing. Achieving high efficiency DSCs involves optimization of the absorption of light and transport of carriers in the active layers, which requires a precisely controlled nanostructure of the mesoporous titanium dioxide (TiO2) electrode. This work concentrates on the investigation of flow-limited field-injection electrostatic spraying (FFESS) and its application in the advancement of dye-sensitized solar cell research. This includes a fundamental investigation of FFESS for patterning of DSC materials, and the generation and control of TiO2 nanostructures and composite electrodes using this process, which prove effective in improving DSC performance. In addition, a surface treatment of the DSC electrodes is performed to investigate the relationships between the performance and the morphology and surface chemistry of the TiO2, and their impact on fundamental transport phenomena.","abstract_html":"There is much interest in the development of technologies which can enhance the performance of dye-sensitized solar cells (DSCs), due to their promising efficiencies relative to the low cost of materials and manufacturing. Achieving high efficiency DSCs involves optimization of the absorption of light and transport of carriers in the active layers, which requires a precisely controlled nanostructure of the mesoporous titanium dioxide (TiO2) electrode. This work concentrates on the investigation of flow-limited field-injection electrostatic spraying (FFESS) and its application in the advancement of dye-sensitized solar cell research. This includes a fundamental investigation of FFESS for patterning of DSC materials, and the generation and control of TiO2 nanostructures and composite electrodes using this process, which prove effective in improving DSC performance. In addition, a surface treatment of the DSC electrodes is performed to investigate the relationships between the performance and the morphology and surface chemistry of the TiO2, and their impact on fundamental transport phenomena.","abstract_has_math":false,"creators":["Heil, Philip"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Materials Science & Engr","degree_department":null,"school":null,"contributors":["Kim, Kyekyoon","Choi, Hyungsoo","Cahill, David G.","Rockett, Angus A.","Martin, Lane W."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-09-18T21:15:37Z","date_published":"2012-09-18T21:15:37Z","updated_at":"2026-07-22T22:25:31Z","subjects":["Dye-sensitized","Solar cell","Flow-limited field-injection electrostatic spraying (FFESS)","Titanium dioxide (TiO2)","Nanoparticle","Nanofiber"],"languages":["en"],"rights":["Copyright 2012 Philip Edward Heil"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/34411","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Kim, Kyekyoon","Choi, Hyungsoo","Cahill, David G.","Rockett, Angus A.","Martin, Lane W."]},{"key":"dc:creator","label":"Author","values":["Heil, Philip"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2012-09-18T21:15:37Z","2012-08"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Materials Science & Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"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":["Dye-sensitized","Solar cell","Flow-limited field-injection electrostatic spraying (FFESS)","Titanium dioxide (TiO2)","Nanoparticle","Nanofiber"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2012 Philip Edward Heil"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/34411"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["There is much interest in the development of technologies which can enhance the performance of dye-sensitized solar cells (DSCs), due to their promising efficiencies relative to the low cost of materials and manufacturing. 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