Grading patterning perovskite nanocrystal-polymer composite films for robust multilevel information encryption and decryption

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 451; p. 138240
• Main Authors: Fu, Jiaxing, Feng, Jingyun, Shi, Bori, Zhou, Yongfeng, Xue, Chang, Zhang, Mengying, Qi, Yabing, Wen, Weijia, Wu, Jinbo
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2023
• Subjects: Defect; Information encryption; Nanosecond laser; Patterning; Perovskite; Perovskite; Defect; Patterning; Information encryption; Nanosecond laser

[Display omitted] •Perovskite nanocrystals-polycarbonate composite films was patterned in three level.•Destroy the composite in high power to present the patterns in bright field.•Damage the nanocrystals in medium power to quench the fluorescence permanently.•Induce defects in low power to quench th...