{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360021394464824960.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/adfm.201705908"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fadfm.201705908"}},{"identifier":{"@type":"URI","@value":"https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/adfm.201705908"}}],"dc:title":[{"@value":"Engineering the Exciton Dissociation in Quantum‐Confined 2D CsPbBr<sub>3</sub> Nanosheet Films"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>Recent years have witnessed a rapid development of all‐inorganic halide perovskite in optoelectronic devices. Ultrathin 2D CsPbBr<jats:sub>3</jats:sub> nanosheets (NSs) with large lateral dimensions have demonstrated exceptional photophysical properties because of their analogous exciton electronic structure to quantum wells. Despite the incredible progress on device performance, the photophysics and carrier transportation parameters of quantum‐confined CsPbBr<jats:sub>3</jats:sub> NSs are lacking, and the fundamental understanding of the exciton dissociation mechanism is far less developed. Here, a ligands rearrangement mechanism is proposed to explain why annealed NS films have an increased charge transfer rate and a decreased exciton binding energy and lifetime, prompting tunneling as a dominant way of exciton dissociation to separate photogenerated excitons between neighboring NSs. This facile but efficient method provides a new insight to manipulate perovskite nanocrystals coupling. Moreover, ultrathin 2D CsPbBr<jats:sub>3</jats:sub> NS film is demonstrated to have a enhanced absorption cross section and high carrier mobility of 77.9 cm<jats:sup>2</jats:sup> V<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup>, contributing to its high responsivity of 0.53 A W<jats:sup>−1</jats:sup>. The photodetector has a long‐term stability up to three months, which are responsible for reliable perovskite‐based device performance.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380021394464824966","@type":"Researcher","foaf:name":[{"@value":"Zhi Yang"}],"jpcoar:affiliationName":[{"@value":"Electronic Materials Research Laboratory (EMRL) Key Laboratory of Education Ministry International Center for Dielectric Research (ICDR) Shaanxi Engineering Research Center of Advanced Energy Materials and Devices Xi'an Jiaotong University  Xi'an 710049 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021394464824961","@type":"Researcher","foaf:name":[{"@value":"Minqiang Wang"}],"jpcoar:affiliationName":[{"@value":"Electronic Materials Research Laboratory (EMRL) Key Laboratory of Education Ministry International Center for Dielectric Research (ICDR) Shaanxi Engineering Research Center of Advanced Energy Materials and Devices Xi'an Jiaotong University  Xi'an 710049 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021394464824967","@type":"Researcher","foaf:name":[{"@value":"Hengwei Qiu"}],"jpcoar:affiliationName":[{"@value":"Electronic Materials Research Laboratory (EMRL) Key Laboratory of Education Ministry International Center for Dielectric Research (ICDR) Shaanxi Engineering Research Center of Advanced Energy Materials and Devices Xi'an Jiaotong University  Xi'an 710049 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021394464824962","@type":"Researcher","foaf:name":[{"@value":"Xi Yao"}],"jpcoar:affiliationName":[{"@value":"Electronic Materials Research Laboratory (EMRL) Key Laboratory of Education Ministry International Center for Dielectric Research (ICDR) Shaanxi Engineering Research Center of Advanced Energy Materials and Devices Xi'an Jiaotong University  Xi'an 710049 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021394464824968","@type":"Researcher","foaf:name":[{"@value":"Xiangzhou Lao"}],"jpcoar:affiliationName":[{"@value":"Department of Physics, and Shenzhen Institute of Research and Innovation (HKU‐SIRI) The University of Hong Kong  Pokfulam Road Hong Kong China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021394464824960","@type":"Researcher","foaf:name":[{"@value":"Shijie Xu"}],"jpcoar:affiliationName":[{"@value":"Department of Physics, and Shenzhen Institute of Research and Innovation (HKU‐SIRI) The University of Hong Kong  Pokfulam Road Hong Kong China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021394464824963","@type":"Researcher","foaf:name":[{"@value":"Zhonghai Lin"}],"jpcoar:affiliationName":[{"@value":"Key Laboratory of Intelligent Information Processing in Universities of Shandong Shandong Business and Technology University  Yantai 264005 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021394464824965","@type":"Researcher","foaf:name":[{"@value":"Luyi Sun"}],"jpcoar:affiliationName":[{"@value":"Department of Chemical and Biomolecular Engineering and Polymer Program Institute of Materials Science University of Connecticut  Storrs CT 06269 USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021394464824964","@type":"Researcher","foaf:name":[{"@value":"Jinyou Shao"}],"jpcoar:affiliationName":[{"@value":"State Key Laboratory of Manufacturing Systems Engineering Xi'an Jiaotong University  Xi'an 710049 China"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"1616301X"},{"@type":"EISSN","@value":"16163028"}],"prism:publicationName":[{"@value":"Advanced Functional Materials"}],"dc:publisher":[{"@value":"Wiley"}],"prism:publicationDate":"2018-01-22","prism:volume":"28","prism:number":"14"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fadfm.201705908"},{"@id":"https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/adfm.201705908"}],"createdAt":"2018-01-22","modifiedAt":"2025-10-06","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360302865530798464","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Synergistic Effect of Cation Composition Engineering of Hybrid Cs<sub>1−<i>x</i></sub>FA<sub><i>x</i></sub>PbBr<sub>3</sub> Nanocrystals for Self‐Healing Electronics Application"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1002/adfm.201705908"},{"@type":"CROSSREF","@value":"10.1002/adma.202207617_references_DOI_NVbradbWn46IRmmwUOabPxc0Yxw"}]}