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Persistent Charging of CsPbBr3 Perovskite Nanocrystals Confined in Glass Matrix
Wang, Gang1; Yang, Bobo2; Mei, Shiliang1,2; Wang, Bingzhe1; Zhang, Zhipeng1; Mao, Yulin1; Guo, Jia1; Ma, Guohong3; Guo, Ruiqian2; Xing, Guichuan1
2023-12-06
Source PublicationSmall
ISSN1613-6810
Volume20Issue:18Pages:2307785
Other Abstract

Manipulation of persistent charges in semiconductor nanostructure is the keypoint to obtain quantum bits towards the application of quantum memoryand information devices. However, realizing persistent charge storage insemiconductor nano-systems is still very challenge due to the disturbancefrom crystal defects and environment conditions. Herein, the two-photonpersistent charging induced long-lasting afterglow and charged excitonformation are observed in CsPbBr3 perovskite nanocrystals (NCs) confined inglass host with effective lifetime surpassing one second, where the glassinclosure provides effective protection. A method combining the femtosecondand second time-resolved transient absorption spectroscopy is explored todetermine the persistent charging possibility of perovskite NCsunambiguously. Meanwhile, with temperature-dependent spectroscopy, theunderlying mechanism of this persistent charging is elucidated. A two-channelcarrier transfer model is proposed involving athermal quantum tunneling andslower thermal-assisted channel. On this basis, two different informationstorage devices are demonstrated with the memory time exceeding two hoursunder low-temperature condition. These results provide a new strategy torealize persistent charging in perovskite NCs and deepen the understandingof the underlying carrier kinetics, which may pave an alternative way towardsnovel information memory and optical data storage applications.

KeywordAfterglow Charged Exciton Information Storage Perovskite Nanocrystal Persistent Charge
DOI10.1002/smll.202307785
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary' Physics, Applied' Physics, Condensed Matter
WOS IDWOS:001114569800001
PublisherWILEY-V C H VERLAG GMBHPOSTFACH 101161, 69451 WEINHEIM, GERMANY
Scopus ID2-s2.0-85178918157
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Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF PHYSICS AND CHEMISTRY
INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorMei, Shiliang; Guo, Ruiqian; Xing, Guichuan
Affiliation1.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, 999078, Macao
2.Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
3.Department of Physics, Shanghai University, Shanghai, 200444, China
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Wang, Gang,Yang, Bobo,Mei, Shiliang,et al. Persistent Charging of CsPbBr3 Perovskite Nanocrystals Confined in Glass Matrix[J]. Small, 2023, 20(18), 2307785.
APA Wang, Gang., Yang, Bobo., Mei, Shiliang., Wang, Bingzhe., Zhang, Zhipeng., Mao, Yulin., Guo, Jia., Ma, Guohong., Guo, Ruiqian., & Xing, Guichuan (2023). Persistent Charging of CsPbBr3 Perovskite Nanocrystals Confined in Glass Matrix. Small, 20(18), 2307785.
MLA Wang, Gang,et al."Persistent Charging of CsPbBr3 Perovskite Nanocrystals Confined in Glass Matrix".Small 20.18(2023):2307785.
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