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Decoding the Self-Assembly Plasmonic Interface Structure in a PbS Colloidal Quantum Dot Solid for a Photodetector
Tech Univ Munich, TUM Sch Nat Sci, Dept Phys, Chair Funct Mat, D-85748 Garching, Germany..ORCID-id: 0000-0002-9887-9265
Tech Univ Munich, TUM Sch Nat Sci, Dept Phys, Chair Funct Mat, D-85748 Garching, Germany.;Shenzhen Technol Univ, Ctr Adv Mat Diagnost Technol, Shenzhen Key Lab Ultraintense Laser & Adv Mat Tech, Shenzhen 518118, Peoples R China.;Shenzhen Technol Univ, Coll Engn Phys, Shenzhen 518118, Peoples R China..ORCID-id: 0000-0001-9550-0523
Shenzhen Technol Univ, Coll Integrated Circuits & Optoelect Chips, Shenzhen 518118, Peoples R China..
Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Peoples R China..
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2023 (Engelska)Ingår i: ACS Nano, ISSN 1936-0851, E-ISSN 1936-086X, Vol. 17, nr 22, s. 23010-23019Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Hybrid plasmonic nanostructures have gained enormous attention in a variety of optoelectronic devices due to their surface plasmon resonance properties. Self-assembled hybrid metal/quantum dot (QD) architectures offer a means of coupling the properties of plasmonics and QDs to photodetectors, thereby modifying their functionality. The arrangement and localization of hybrid nanostructures have an impact on exciton trapping and light harvesting. Here, we present a hybrid structure consisting of self-assembled gold nanospheres (Au NSs) embedded in a solid matrix of PbS QDs for mapping the interface structures and the motion of charge carriers. Grazing-incidence small-angle X-ray scattering is utilized to analyze the localization and spacing of the Au NSs within the hybrid structure. Furthermore, by correlating the morphology of the Au NSs in the hybrid structure with the corresponding differences observed in the performance of photodetectors, we are able to determine the impact of interface charge carrier dynamics in the coupling structure. From the perspective of architecture, our study provides insights into the performance improvement of optoelectronic devices.

Ort, förlag, år, upplaga, sidor
American Chemical Society (ACS) , 2023. Vol. 17, nr 22, s. 23010-23019
Nyckelord [en]
self-assembled monolayer, quantum dot, hybridnanostructures, grazing-incidence small-angle X-ray scattering, optoelectronics
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URN: urn:nbn:se:kth:diva-341567DOI: 10.1021/acsnano.3c08526ISI: 001116590300001PubMedID: 37948332Scopus ID: 2-s2.0-85178140178OAI: oai:DiVA.org:kth-341567DiVA, id: diva2:1822312
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QC 20231222

Tillgänglig från: 2023-12-22 Skapad: 2023-12-22 Senast uppdaterad: 2023-12-22Bibliografiskt granskad

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Roth, Stephan V.

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Guan, TianfuChen, WeiWeindl, Christian L.Liang, SuzheXiao, TianxiaoRoth, Stephan V.
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