Hierarchical polyaromatic hydrocarbons (PAH) with superior sodium storage properties
作者:Jie Qu、Xin-Xin Dai、Jie-Shun Cui、Rou-Xi Chen、Xin Wang、Yen-Hao Lin、Rafael Verduzco、Hsing-Lin Wang
DOI:10.1039/d1ta03101e
日期:——
Designing a structurally stable anode with a high reversible capacity for sodiumionbatteries (SIBs) is particularly crucial so that batteries are able to meet the requirements for large-scale applications in grid electrical energy storage. Polyaromatic hydrocarbons (PAHs) are organic molecules with well-defined structures that demonstrate excellent performance in lithium storage. Based on our well-established
为钠离子电池 (SIB) 设计一种结构稳定且具有高可逆容量的阳极尤其重要,这样电池才能满足电网电能存储中大规模应用的要求。多环芳烃 (PAH) 是具有明确结构的有机分子,在锂存储方面表现出优异的性能。基于我们在电池性能和分子结构之间建立的相关性,我们首次应用最近合成的六苯并芴(HBC)和相应的衍生物 HBC-OMe 来进行钠储存。由于两个 HBC 部分之间的相互作用,HBC 分子形成了具有长程有序面心立方 (fcc) 结构的自组装体。这种独特的 3D 结构有望在薄片之间产生强烈的 π-π 相互作用,从而在长期循环过程中产生惊人的耐久性。此外,表面主导的 Na+存储机制可以促进 Na +传输动力学,同时减轻充放电循环过程中的结构应变。从表面驱动的电容过程的耦合效应和鲁棒3D自组装分层性质,含氧样品,HBC-OME受益,表现出非凡的存储能力钠,获得506毫安Hg的高容量-1在0.1 A克-1具
Solution-processable star-shaped small molecules for efficient organic RRAM by induced conductive filament mechanism
conduction mechanism induced by N atoms. These results suggest that introducing the Nheteroatoms into molecules can not only adjust the intermolecular interactions and thin film morphology, but also help to the formation of metal filament, which thus changes the resistive memory behaviour. Due to its dependable and stable storing properties, the as-fabricated WORM device based on tBu-TPPA was also applied
为了研究不同的核心和封端部分如何影响星形分子的薄膜形态和记忆性能,合成了五种分子BPPT、TPPT、TPPA、t Bu-TPPT和t Bu-TPPA,它们由相同的支化基团,但具有不同的核心单元,具有不同的电子效应,即1,3,5-三苯基苯、2,4,6-三苯基-1,3,5-三嗪和三苯胺。其中,基于TPPT、TPPA、t Bu-TPPT和t Bu-TPPA的器件含氮杂原子显示非易失性二进制一次写入多次读取 (WORM) 内存行为。值得注意的是,基于t Bu-TPPA的器件显示出最高的I ON / I OFF比率(10 5) 和最低阈值电压 (1.45 V)。我们提出这些材料的电阻转换特性是由于 N 原子诱导的铝丝导电机制。这些结果表明,将N杂原子引入分子中不仅可以调节分子间相互作用和薄膜形貌,还有助于金属丝的形成,从而改变电阻记忆行为。由于其可靠稳定的存储性能,基于t Bu-TPPA制造的WOR
Polymer matrix electroluminescent materials and devices
申请人:Sumation Co., Ltd.
公开号:EP1862497A2
公开(公告)日:2007-12-05
This invention relates to photoluminescent and electroluminescent compositions comprising a matrix comprising aromatic repeat units and a luminescent metal ion or a luminescent metal ion complex. The invention also relates to method for making such compositions and electroluminescent devices using such compositions.
compositions for electroluminescent material and their devices
申请人:Sumation Company Limited
公开号:EP2272905A2
公开(公告)日:2011-01-12
The invention relates to photoluminescent and electroluminescent compositions comprising a matrix comprising aromatic repeat units and a luminescent metal ion or a luminescent metal ion complex. The invention also relates to method for making such compositions and electroluminescent devices using such compositions.
Compositions for electrolumescent material and their devices
申请人:Sumation Company Limited
公开号:EP2272904A2
公开(公告)日:2011-01-12
The invention relates to photoluminescent and electroluminescent compositions comprising a matrix comprising aromatic repeat units and a luminescent metal ion or a luminescent metal ion complex. The invention also relates to method for making such compositions and electroluminescent devices using such compositions.