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- 摘要
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- 实验方案
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Two-Dimensional Conducting Polymers: Synthesis and Charge Transport
摘要： Current technological advances and prolific endeavors have entrenched two-dimensional conducting polymers as the rapidly emerging interface across a diversity of functional materials for flexible electronics, sensors, ion-exchange membranes, biotechnology, catalysis, energy storage, and conversion. Rational design and fabrication of polymeric nanostructures enriched with well-ordered geometry are appealing and endorse significant impact on their inbuilt electrical, optical, and mechanical properties. In particular, recent interest in controlled hierarchical assembly of monomers/oligomers proved the free-standing sheet-like structures with exotic features of high conductivity and flexibility. Yet, the ongoing research to make nanometer-thick polymers suffers from limitations to access large-area, mechanical stability, and high-range internal ordering. In this perspective, we focus on the radical approaches that highlight confinement-entitled features of two-dimensional polymeric materials correlating to their interface or template-assisted synthesis, structure–property relationship, charge transport properties, and future scopes for relevant practical enactments.
关键词： 2D assembly,self-organization,conjugated polymers,charge transport,interfacial synthesis
更新于2025-09-23 15:22:29
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Controlled Growth of CH <sub/>3</sub> NH <sub/>3</sub> PbBr <sub/>3</sub> Perovskite Nanocrystals via a Water–Oil Interfacial Synthesis Method
摘要： Fundamental insights into the reaction kinetics of organic–inorganic lead halide perovskite nanocrystals (LHP NCs) are still limited due to their ultrafast formation rate. Herein, we develop a water–oil interfacial synthesis of MAPbBr3 NCs (MA = CH3NH3+), which prolongs the reaction time to tens of minutes. This method makes it possible to monitor in situ the formation process of MAPbBr3 NCs and observe successive spectral evolutions from 438 to 534 nm in a single reaction by extending reaction time. The implementation of this method depends on reducing the formation rate of PbBr64? octahedra and the diffusion rate of MA. The formation of PbBr64? is a rate-determining step, and the biphasic system offers a favorable reaction condition to control the mass transfer of MA. The effects of temperature and concentration of precursor and ligand are investigated in detail.
关键词： CH3NH3PbBr3,perovskite nanocrystals,interfacial synthesis,kinetic study,formation mechanisms
更新于2025-09-19 17:13:59