Encapsulation of Dual-Passivated Perovskite Quantum Dots for Bio-Imaging.

Autor: Song W; Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore., Wang D; Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore., Tian J; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore., Qi G; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore., Wu M; Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore., Liu S; Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore., Wang T; Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore., Wang B; Eco-materials and Renewable Energy Research Center (ERERC), College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, 210093, China., Yao Y; Eco-materials and Renewable Energy Research Center (ERERC), College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, 210093, China., Zou Z; Eco-materials and Renewable Energy Research Center (ERERC), College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, 210093, China., Liu B; Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore.
Jazyk: angličtina
Zdroj: Small (Weinheim an der Bergstrasse, Germany) [Small] 2022 Oct; Vol. 18 (42), pp. e2204763. Date of Electronic Publication: 2022 Sep 14.
DOI: 10.1002/smll.202204763
Abstrakt: Due to their marvelous electrical and optical properties, perovskite nanocrystals have reached remarkable landmarks in solar cells, light-emitting diodes, and photodetectors. However, the intrinsic instability of ionic perovskites, which would undergo an undesirable phase transition and decompose rapidly in ambient humidity, limits their long-term practical deployment. To address this challenge, halogenated trimethoxysilane as the passivation additive is chosen, which utilizes simultaneous halide and silica passivation to enhance the stability of perovskite nanoparticles via a dual-passivation mechanism. The processable nanoparticles show high photoluminescence quantum yield, tunable fluorescence wavelength, and excellent resistance against air and water, highlighting great potential as green to deep-red bio-labels after further phospholipid encapsulation. This work demonstrates that the dual-passivation mechanism could be used to maintain the long-term stability of ionic crystals, which sheds light on the opportunity of halide perovskite nanoparticles for usage in a humid environment.
(© 2022 Wiley-VCH GmbH.)
Databáze: MEDLINE
Externí odkaz: