{"id":{"repo_id":"cagliari","oai_identifier":"oai:iris.unica.it:11584/477685"},"canonical_url":"https://search.dev.ndltd.org/etd/cagliari/oai:iris.unica.it:11584/477685","repository":{"repo_id":"cagliari","name":"Università di Cagliari","base_url":"https://iris.unica.it/oai/request"},"display":{"title":"Synthesis and Optical Characterization of Boron based Nanostructured Materials","abstract":"Boron has a unique complex atomic structure formed by electron-deficient, multi-center bonding, which results in a broad range of physical and chemical properties. When compared to other elemental nanomaterials, boron-based nanomaterials exhibit uncommon behaviours due to their distinct bonding characteristics. Due to their reactive nature, boron nanoparticles are generally unstable and prone to defect formation, which greatly affects their optical properties. Due to these unique properties of Boron, this thesis focuses on the synthesis of low-dimensional boron nanomaterials with a special focus on understanding of origin of photoluminescence and the impact of structural defects on photoluminescence. In summary, this thesis provides a detailed understanding of the defect–property relationship in boron-based nanomaterials, explains the luminescence origin in boron nanodots, boron oxide nanoparticles, and critically assesses synthesis methods to produce borophene. These findings open the door for engineering defects in boron nanostructured materials in future optoelectronics and fluorescence sensing applications","abstract_html":"Boron has a unique complex atomic structure formed by electron-deficient, multi-center bonding, which results in a broad range of physical and chemical properties. When compared to other elemental nanomaterials, boron-based nanomaterials exhibit uncommon behaviours due to their distinct bonding characteristics. Due to their reactive nature, boron nanoparticles are generally unstable and prone to defect formation, which greatly affects their optical properties. Due to these unique properties of Boron, this thesis focuses on the synthesis of low-dimensional boron nanomaterials with a special focus on understanding of origin of photoluminescence and the impact of structural defects on photoluminescence. In summary, this thesis provides a detailed understanding of the defect–property relationship in boron-based nanomaterials, explains the luminescence origin in boron nanodots, boron oxide nanoparticles, and critically assesses synthesis methods to produce borophene. These findings open the door for engineering defects in boron nanostructured materials in future optoelectronics and fluorescence sensing applications","abstract_has_math":false,"creators":["ANWAR, USAMA"],"institution":"Università degli Studi di Cagliari","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2026,"date_issued":"2026-02-23T00:00:00+01:00","date_published":"2026-02-23T00:00:00+01:00","updated_at":"2026-07-24T01:29:55Z","subjects":["Settore ING-IND/22 - Scienza e Tecnologia dei Materiali"],"languages":["eng"],"rights":["info:eu-repo/semantics/openAccess"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/11584/477685","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["ANWAR, USAMA"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2026-02-23T00:00:00+01:00"]},{"key":"dc:publisher","label":"Institution","values":["Università degli Studi di Cagliari"]},{"key":"dc:type","label":"Dc Type","values":["info:eu-repo/semantics/doctoralThesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Settore ING-IND/22 - Scienza e Tecnologia dei Materiali"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["info:eu-repo/semantics/openAccess"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/11584/477685"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Boron has a unique complex atomic structure formed by electron-deficient, multi-center bonding, which results in a broad range of physical and chemical properties. When compared to other elemental nanomaterials, boron-based nanomaterials exhibit uncommon behaviours due to their distinct bonding characteristics. Due to their reactive nature, boron nanoparticles are generally unstable and prone to defect formation, which greatly affects their optical properties. Due to these unique properties of Boron, this thesis focuses on the synthesis of low-dimensional boron nanomaterials with a special focus on understanding of origin of photoluminescence and the impact of structural defects on photoluminescence. In summary, this thesis provides a detailed understanding of the defect–property relationship in boron-based nanomaterials, explains the luminescence origin in boron nanodots, boron oxide nanoparticles, and critically assesses synthesis methods to produce borophene. These findings open the door for engineering defects in boron nanostructured materials in future optoelectronics and fluorescence sensing applications"]},{"key":"dc:title","label":"Title","values":["Synthesis and Optical Characterization of Boron based Nanostructured Materials"]}]}],"canonical_facts":{"dc:creator":["ANWAR, USAMA"],"dc:date":["2026-02-23T00:00:00+01:00"],"dc:description":["Boron has a unique complex atomic structure formed by electron-deficient, multi-center bonding, which results in a broad range of physical and chemical properties. When compared to other elemental nanomaterials, boron-based nanomaterials exhibit uncommon behaviours due to their distinct bonding characteristics. Due to their reactive nature, boron nanoparticles are generally unstable and prone to defect formation, which greatly affects their optical properties. Due to these unique properties of Boron, this thesis focuses on the synthesis of low-dimensional boron nanomaterials with a special focus on understanding of origin of photoluminescence and the impact of structural defects on photoluminescence. In summary, this thesis provides a detailed understanding of the defect–property relationship in boron-based nanomaterials, explains the luminescence origin in boron nanodots, boron oxide nanoparticles, and critically assesses synthesis methods to produce borophene. These findings open the door for engineering defects in boron nanostructured materials in future optoelectronics and fluorescence sensing applications"],"dc:identifier":["https://hdl.handle.net/11584/477685"],"dc:language":["eng"],"dc:publisher":["Università degli Studi di Cagliari"],"dc:rights":["info:eu-repo/semantics/openAccess"],"dc:subject":["Settore ING-IND/22 - Scienza e Tecnologia dei Materiali"],"dc:title":["Synthesis and Optical Characterization of Boron based Nanostructured Materials"],"dc:type":["info:eu-repo/semantics/doctoralThesis"]},"updated_at":"2026-07-24T01:29:55Z"}