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journal article·2024-07

Surficial Host‐Guest Responsive CsPbBr3 Perovskite Nanocrystals for Programmable Multi‐Level Information Encryption

Bo‐Yi Deng, Zi‐Rong Zhou, Hai‐Long Xu, Zi‐Hao Liao, Chen‐Ho Tung, Li‐Zhu Wu, Feng Wang

Small· Volume 20· Issue 29
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Source abstract

Abstract

Abstract The design of smart stimuli‐responsive photoluminescent materials capable of multi‐level encryption and complex information storage is highly sought after in the current information era. Here, a novel adamantyl‐capped CsPbBr3 (AD‐CsPbBr3) perovskite NCs, along with its supramolecular host‐guest assembly partner a modified β‐CD (mCD), mCD@AD‐CsPbBr3, are designed and prepared. By dispersing these two materials in different solvents, namely, AD‐CsPbBr3 in toluene, mCD@AD‐CsPbBr3 in toluene, and mCD@AD‐CsPbBr3 in methanol, the three solutions exhibit diverse photoluminescence (PL) turn‐on/off or PL discoloration response upon supramolecular stimulus. Based on these responses, a proof‐of‐principle programmable Multi‐Level Photoluminescence Encoding System (MPLES) is established. Three types of four‐level and three types of three‐level information encoding are achieved by the system. A layer‐by‐layer four‐level information encryption and decryption as well as a two‐level encrypted 3D code are successfully achieved.
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Research context

NanomaterialsElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Luminescence and Fluorescent Materials · 2D Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China

Guangdong Provincial Key Laboratory of Manufacturing Equipment Digitization Guangdong HUST Industrial Technology Research Institute Wuhan 523808 P. R. China

School of Materials Science and Engineering Wuhan Institute of Technology Wuhan 430205 P. R. China

Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 P. R. China

Funding

National Natural Science Foundation of China

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