The
chirality evolution from the molecular level to the macroscopic
level remains elusive for inorganic hierarchical structures. Without
adding any chiral ligands or dopants, we prepared the macroscopic
helical assemblies of sub-1 nm nanowires through a facile evaporation-induced
self-assembly process with 100% efficiency, benefiting from the self-adjustment
and self-recognition of sub-1 nm nanowires. Furthermore, we observed
circularly polarized luminescence signals from the helical assemblies
composed of nanowires and achiral organic fluorescent dyes, stemming
from chirality transfer from the helical assemblies to achiral organic
molecules. Molecular dynamics simulations found that the chirality
of nanowires played a key role in the formation of macroscopic helical
assemblies. Our work clarifies the chirality evolution and transfer
of inorganic nanomaterials in part without being studied previously.
This work presents the recovery of thermal energy through the oscillation of liquid plugs induced by phase transition within the oscillating heat pipe (OHP) during the quick heat-transfer process of the OHP. Using the electrical double layer at the liquid-solid interface in the OHP, this study demonstrated that the waste heat can be recycled and converted into useful electric energy. This recycling system generated more than 1 V of output voltage and more than 1.6 μW of peak power. The electric output generated from such a process can be used to power up small electronic devices, such as capacitors and light-emitting diodes (LEDs). The findings in this work provide an alternative approach to harvest waste heat in many devices or systems that involve the generation and removal of waste heat.
Sub-1-nm nanomaterials (SNMs) have attracted attention for their novel structures and size-related properties. In the past decade, various SNMs were synthesized, such as nanowires, nanorings, nanosheets, nanobelts, nanotubes, and other...
Sub-1 nm nanowires (SNWs) combine the properties of inorganic materials and polymers. They can be highly oriented through assembly, and can also be easily processed. Meanwhile, aggregation-induced emission luminogens (AIEgens) show high potential for optical applications, but they are usually hard to process. The combination of SNWs and AIEgens can enrich both of their applications. In this study, we report that the fluorescence emission intensity of the AIEgens-SNW dispersion is dramatically enhanced due to the flexibility of SNWs. Furthermore, we fabricate two kinds of functional films with circularly polarized luminescence (CPL) and linearly polarized luminescence (LPL) activities. The construction of CPL materials didn't require any chiral chemicals. The construction of LPL materials didn't require an additional stretching process. As a result, we endowed common achiral AIEgens with a high dissymmetry factor of 0.033 and a polarization ratio of 0.44, respectively.
Sub-1 nm nanowires (SNWs) combine the properties of inorganic materials and polymers. They can be highly oriented through assembly, and can also be easily processed. Meanwhile, aggregation-induced emission luminogens (AIEgens) show high potential for optical applications, but they are usually hard to process. The combination of SNWs and AIEgens can enrich both of their applications. In this study, we report that the fluorescence emission intensity of the AIEgens-SNW dispersion is dramatically enhanced due to the flexibility of SNWs. Furthermore, we fabricate two kinds of functional films with circularly polarized luminescence (CPL) and linearly polarized luminescence (LPL) activities. The construction of CPL materials didn't require any chiral chemicals. The construction of LPL materials didn't require an additional stretching process. As a result, we endowed common achiral AIEgens with a high dissymmetry factor of 0.033 and a polarization ratio of 0.44, respectively.
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