Affiliation:
1. Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Lavrentiev Ave Novosibirsk 630090 Russia
2. School of Advanced Materials Peking University Shenzhen Graduate School Peking University Shenzhen 518055 China
3. School of Physics and Technology Wuhan University Wuhan Hubei 430072 China
4. N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9, Lavrentiev Ave Novosibirsk 630090 Russia
Abstract
AbstractOver recent years, Mn(II)‐organic materials showing circularly polarized luminescence (CPL) have attracted great interest because of their eco‐friendliness, cheapness, and room temperature phosphorescence. Using the helicity design strategy, herein, chiral Mn(II)‐organic helical polymers are constructed featuring long‐lived circularly polarized phosphorescence with exceptionally high glum and ΦPL magnitudes of 0.021% and 89%, respectively, while remaining ultrarobust toward humidity, temperature, and X‐rays. Equally important, it is disclosed for the first time that the magnetic field has a remarkably high negative effect on CPL for Mn(II) materials, suppressing the CPL signal by 4.2‐times at = 1.6 T. Using the designed materials, UV‐pumped CPL light‐emitting diodes are fabricated, demonstrating enhanced optical selectivity under right‐ and left‐handed polarization conditions. On top of all this, the reported materials display bright triboluminescence and excellent X‐ray scintillation activity with a perfectly linear X‐ray dose rate response up to 174 µGyair s−1. Overall, these observations significantly contribute to the CPL phenomenon for multi‐spin compounds and promote the design of highly efficient and stable Mn(II)‐based CPL emitters.
Funder
Ministry of Science and Higher Education of the Russian Federation
Shenzhen Fundamental Research Program
Development and Reform Commission of Shenzhen Municipality
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Cited by
4 articles.
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