Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.1002/adfm.202413524

Аннотация: <jats:title>Abstract</jats:title><jats:p>Hybrid metal halides (HMHs) with time-resolved luminescence behavior promise to be a breakthrough in multi-level anti-counterfeiting, but controlling the dynamic switching between phosphorescence and fluorescence is extremely challenging. Herein, an array of 0D HMHs is constructed by screeniПоказать полностьюng the <jats:italic>π</jats:italic>-conjugated ligand with room-temperature phosphorescence (RTP). Compared to the organic chromophore, (ETPP)<jats:sub>2</jats:sub>ZrCl<jats:sub>6</jats:sub> possesses a misaligned stacking and rigid structure, contributing to an improved phosphorescence quantum yield (Φ<jats:sub>P</jats:sub> = 27.50%) and an extended phosphorescence lifetime (<jats:italic>τ</jats:italic> = 0.6234 s), as the intervening of inorganic unit [ZrCl<jats:sub>6</jats:sub>]<jats:sup>2−</jats:sup> suppresses the energy losses caused by nonradiative relaxation and prompts the intersystem crossover (ISC) process. Not only that, the interplay of phosphorescence-fluorescence dual-mode emission can be intelligently controlled by doping the active metal Te<jats:sup>4+</jats:sup>, resulting in a dynamic switching between RTP phosphorescence and self-trapped exciton (STE) fluorescence. DFT calculations reveal the governing origins of RTP-STE from the intermolecular ISC channels and spin-orbit coupling (SOC) coefficients. These precise images into periodic pixelated arrays enable the multi-level anti-counterfeiting and information encryption. This work proposes a fluorescence-phosphorescence co-modulating strategy under the premise of dissecting the structural origins for optimizing RTP phosphorescence, which paves the way for designing high-security-level anti-counterfeiting materials.</jats:p>

Журнал: Advanced Functional Materials

ISSN журнала: 1616301X

Место издания: Weinheim

Издатель: Wiley Interscience

• Zhou Guojun (Key Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education) School of Chemistry and Material Science Shanxi Normal University Taiyuan 030031 P. R. China)
• Mao Yilin (College of Chemistry &amp; Chemical Engineering Key Laboratory of Interface Science and Engineering in Advanced Material Taiyuan University of Technology Taiyuan Shanxi 030024 P. R. China)
• Zhang Jian (Key Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education) School of Chemistry and Material Science Shanxi Normal University Taiyuan 030031 P. R. China)
• Ren Qiqiong (Key Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education) School of Chemistry and Material Science Shanxi Normal University Taiyuan 030031 P. R. China)
• Molokeev Maxim S. (Department of Physics and Technical Sciences Western Caspian University Baku AZ 1001 Azerbaijan)
• Xia Zhiguo (School of Physics and Optoelectronics South China University of Technology Guangzhou 510641 P. R. China)
• Zhang Xian-Ming (College of Chemistry &amp; Chemical Engineering Key Laboratory of Interface Science and Engineering in Advanced Material Taiyuan University of Technology Taiyuan Shanxi 030024 P. R. China)

• Ядро РИНЦ (eLIBRARY.RU)