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UnclonablenPerovskite Fluorescent Dots with FingerprintnPattern for Multilevel Anticounterfeiting 具有指纹图谱的不可克隆钙钛矿荧光点多层次防伪

Figshare Pub Date : 2020-07-22 DOI: 10.1021/acsami.0c11103.s001

Yang Liu (4829), Yuanhui Zheng (1607083), Yangbin Zhu (9209866), Fumin Ma (2274685), Xiaojing Zheng (656299), Kaiyu Yang (5598632), Xin Zheng (104081), Zhongwei Xu (1491388), Songman Ju (9209869), Yueting Zheng (848251), Tailiang Guo (2562676), Lei Qian (292302), Fushan Li (2834225)

{"title":"UnclonablenPerovskite Fluorescent Dots with FingerprintnPattern for Multilevel Anticounterfeiting","authors":"Yang Liu (4829), Yuanhui Zheng (1607083), Yangbin Zhu (9209866), Fumin Ma (2274685), Xiaojing Zheng (656299), Kaiyu Yang (5598632), Xin Zheng (104081), Zhongwei Xu (1491388), Songman Ju (9209869), Yueting Zheng (848251), Tailiang Guo (2562676), Lei Qian (292302), Fushan Li (2834225)","doi":"10.1021/acsami.0c11103.s001","DOIUrl":"https://doi.org/10.1021/acsami.0c11103.s001","url":null,"abstract":"Anticounterfeitingntechniques based on physical unclonable functionsnexhibit great potential in security protection of extensive commoditiesnfrom daily necessities to high-end products. Herein, we propose anfacile strategy to fabricate an unclonable super micro fingerprintn(SMFP) array by introducing in situ grown perovskite crystals fornmultilevel anticounterfeiting labels. The unclonable features arenformed on the basis of the differential transportation of a microscalenperovskite precursor droplet during the inkjet printing process, couplednwith random crystallization and Ostwald ripening of perovskite crystalsnoriginating from their ion crystal property. Furthermore, the unclonablenpatterns can be readily tailored by tuning in situ crystallizationnconditions of the perovskite. Three-dimensional height informationnon the perovskite patterns are introduced into a security label andnfurther transformed into structural color, significantly enhancingnthe capacity of anticounterfeiting labels. The SMFPs are characterizednwith tunable multilevel anticounterfeiting properties, including macroscalenpatterns, microscale unclonable pattern, fluorescent two-dimensionalnpattens, and colorful three-dimensional information.","PeriodicalId":523596,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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