{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/69772"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/69772","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Efficient silicon micro-reactors for thermophotovoltaic applications","abstract":"Thermophotovoltaic (TPV) systems passively generate electricity from the combustion of fuel. Although TPV conversion systems have advantages, they suffer from low efficiency. This thesis investigates different ways to increase the efficiency of TPV systems. In particular the thesis details micro-fabrication of silicon micro-reactors, and twodimensional tungsten photonic crystals (2D W PhC) for high-temperature applications such as selective thermal emitters for TPV energy conversion. Interference lithography and reactive ion etching are used to produce large-area single-crystal tungsten 2D PhC's. The fabricated PhC consists of an array of cylindrical cavities with 800nm diameter, 1.2 pm depth, and 1.2 pm period. Extensive characterization and calibration of all micro-fabrication steps for both micro-reactors and 2D PhC's are presented. Experimentally-obtained thermal emission spectra of the 2D PhC structures match well with numerical predictions.","abstract_html":"Thermophotovoltaic (TPV) systems passively generate electricity from the combustion of fuel. Although TPV conversion systems have advantages, they suffer from low efficiency. This thesis investigates different ways to increase the efficiency of TPV systems. In particular the thesis details micro-fabrication of silicon micro-reactors, and twodimensional tungsten photonic crystals (2D W PhC) for high-temperature applications such as selective thermal emitters for TPV energy conversion. Interference lithography and reactive ion etching are used to produce large-area single-crystal tungsten 2D PhC's. The fabricated PhC consists of an array of cylindrical cavities with 800nm diameter, 1.2 pm depth, and 1.2 pm period. Extensive characterization and calibration of all micro-fabrication steps for both micro-reactors and 2D PhC's are presented. Experimentally-obtained thermal emission spectra of the 2D PhC structures match well with numerical predictions.","abstract_has_math":false,"creators":["Araghchini, Mohammad"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.","school":null,"contributors":[],"advisors":["Leslie Kolodziejski."],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011","date_published":"2011","updated_at":"2026-07-22T22:22:24Z","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. See provided URL for inquiries about permission."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1721.1/69772","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Leslie Kolodziejski."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science."]},{"key":"dc:contributor.other","label":"Dc Contributor Other","values":["Massachusetts Institute of Technology. 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They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1721.1/69772"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis (Elec.E.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.","Cataloged from PDF version of thesis.","Includes bibliographical references (p. 61-63)."]},{"key":"dc:description.abstract","label":"Abstract","values":["Thermophotovoltaic (TPV) systems passively generate electricity from the combustion of fuel. Although TPV conversion systems have advantages, they suffer from low efficiency. This thesis investigates different ways to increase the efficiency of TPV systems. In particular the thesis details micro-fabrication of silicon micro-reactors, and twodimensional tungsten photonic crystals (2D W PhC) for high-temperature applications such as selective thermal emitters for TPV energy conversion. Interference lithography and reactive ion etching are used to produce large-area single-crystal tungsten 2D PhC's. The fabricated PhC consists of an array of cylindrical cavities with 800nm diameter, 1.2 pm depth, and 1.2 pm period. Extensive characterization and calibration of all micro-fabrication steps for both micro-reactors and 2D PhC's are presented. Experimentally-obtained thermal emission spectra of the 2D PhC structures match well with numerical predictions."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Elec.E."]},{"key":"dc:title","label":"Title","values":["Efficient silicon micro-reactors for thermophotovoltaic applications"]}]}],"canonical_facts":{"dc:contributor.advisor":["Leslie Kolodziejski."],"dc:contributor.department":["Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science."],"dc:contributor.other":["Massachusetts Institute of Technology. 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Interference lithography and reactive ion etching are used to produce large-area single-crystal tungsten 2D PhC's. The fabricated PhC consists of an array of cylindrical cavities with 800nm diameter, 1.2 pm depth, and 1.2 pm period. Extensive characterization and calibration of all micro-fabrication steps for both micro-reactors and 2D PhC's are presented. Experimentally-obtained thermal emission spectra of the 2D PhC structures match well with numerical predictions."],"dc:description.degree":["Elec.E."],"dc:identifier.uri":["http://hdl.handle.net/1721.1/69772"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"dc: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. See provided URL for inquiries about permission."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Electrical Engineering and Computer Science."],"dc:title":["Efficient silicon micro-reactors for thermophotovoltaic applications"],"dc:type":["Thesis"]},"updated_at":"2026-07-22T22:22:24Z"}