{"id":{"repo_id":"nus","oai_identifier":"oai:scholarbank.nus.edu.sg:10635/309551"},"canonical_url":"https://search.dev.ndltd.org/etd/nus/oai:scholarbank.nus.edu.sg:10635/309551","repository":{"repo_id":"nus","name":"National University of Singapore","base_url":"https://scholarbank.nus.edu.sg/oai/request"},"display":{"title":"GRAPHENE BASED DUAL FUNCTIONAL, SELF-POWERED PHOTODETECTOR FOR DAILY UV SENSING","abstract":"ZnO quantum dots have been widely used for ultraviolent photodetectors. However, the relatively low responsivity limits the practical application. New 2D materials incorporated with quantum dots heterostructure are emerging to improve the performance of photodetector. In this work, three types of high-performance UV photodetectors are developed based on graphene/ZnO heterostructure to monitor daily UV radiation in sunlight. Specifically, a ferroelectric gate made of P(VDF-TrFE) is employed to tune the doping level of graphene, creating a higher Schottky barrier and enhancing the responsivity of fabricated photodetector.","abstract_html":"ZnO quantum dots have been widely used for ultraviolent photodetectors. However, the relatively low responsivity limits the practical application. New 2D materials incorporated with quantum dots heterostructure are emerging to improve the performance of photodetector. In this work, three types of high-performance UV photodetectors are developed based on graphene/ZnO heterostructure to monitor daily UV radiation in sunlight. Specifically, a ferroelectric gate made of P(VDF-TrFE) is employed to tune the doping level of graphene, creating a higher Schottky barrier and enhancing the responsivity of fabricated photodetector.","abstract_has_math":false,"creators":["ZHANG ZHIJIE"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-06-24","date_published":"2024-06-24","updated_at":"2026-07-24T03:31:00Z","subjects":["photodetector.","P(VDF-TrFE)","graphene","ZnO quantum dots"],"languages":[],"rights":[],"rights_urls":["https://scholarbank.nus.edu.sg/bitstreams/ab935210-2eb1-4abc-8125-bf88d0ac70e2/download"],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["ZHANG ZHIJIE"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.issued","label":"Date","values":["2024-06-24"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://scholarbank.nus.edu.sg/handle/10635/309551"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["photodetector.","P(VDF-TrFE)","graphene","ZnO quantum dots"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["https://scholarbank.nus.edu.sg/bitstreams/ab935210-2eb1-4abc-8125-bf88d0ac70e2/download"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://scholarbank.nus.edu.sg/bitstreams/57ec4346-f326-47fc-bbf4-45f298cdadbe/download"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["ZnO quantum dots have been widely used for ultraviolent photodetectors. 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