|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 碳纳米管掺杂聚合物稳定蓝相液晶的电场响应性能显示文摘通过将不同尺寸的多壁碳纳米管(MWNTs)掺杂到聚合物稳定蓝相(PSBP)液晶中研究了体系的蓝相温度稳定性和电场响应性能。小尺寸MWNTs的加入使PSBP电诱导反射波谱宽化的阈值电压显著降低。MWNTs掺杂PSBP液晶光子晶体的电响应阈值场强降低至0.1 V/μm,在1.3 V/μm电场下反射光谱谱带宽度可从20 nm拓宽至310 nm。该材料在反射型显示、可调滤光片等领域具有潜在应用价值。 | 王萌 杨槐 | 2018 | 应用化学2018，35，8： | 8 |
| 2 | 不同光滑度立方体氧化铁对液晶电光性能的改善显示文摘向列相液晶被广泛应用于液晶显示中,但是由于杂质的存在,会导致液晶的驱动电压变大,增加能耗。为了降低阈值电压和饱和电压,通常向液晶中添加纳米颗粒来提高电光性能。本文利用水热法制备了表面粗糙和光滑的两种立方体Fe2O3纳米颗粒,其形貌均匀,尺寸约550nm。将二者分别掺杂到向列相液晶E7中,结果表明,粗糙立方体Fe2O3/E7复合体系具有比光滑立方体Fe2O3/E7复合体系和向列相液晶E7更优的电光性能,且在掺杂质量分数为0.4%时,其电光性能达到最优,阈值电压和饱和电压分别降低9.9%和11.6%,对比度增大80%,响应时间降低至6.0ms。这归因于粗糙立方体Fe2O3具有足够的表面积和表面所带电荷更多,所以会更易吸附体系中的杂质离子和减弱杂质离子的屏蔽作用,从而提高了电光性能。 | 王猛 张彬 韦德泉 梁兰菊 宗明吉 刘凤收 | 2019 | 应用化学2019，36，6： | 7 |
| 3 | Morphology-dependent catalytic properties of nano- cupric oxides in the Rochow reaction显示文摘四种 CuO 催化剂与控制得好像叶子(L-CuO ) ,象花(F-CuO ) , sea-urchin-like (U-CuO ) ,并且像燕麦片(O-CuO ) 形态学被各种各样的 chelating ligands 帮助的一个灵巧的降水方法综合。高分辨率的传播电子显微镜学和快 Fourier 转变显示的红外线的光谱学 L-CuO, F-CuO, U-CuO,和 O-CuO 的主导的水晶方面是 { 001 } , { 110 } , { 001 } ,并且 { 110 } ,以及 { 001 } 并且 { 110 } 分别地。当为 Rochow 反应测试了时,他们的催化表演依赖于他们的结构,这被发现。在四 CuO 催化剂之中, L-CuO 展出了最好的催化性质,与为氧和最高的 reducibility 的最强壮的吸附能力一起,它主要因为它的大部分暴露了 { 001 } 方面和大特定的表面区域。另外, Cu 3 Si 合金阶段,是在 Si 表面的反应区域产生了的最重要的反应中介,为不同催化剂被测量。基于调查结果,详细反应机制被建议。这个工作证明氧化物催化剂的那控制形状的合成能是有效策略设计并且发展有效催化剂。 | Yu Zhang Yongjun Ji Jing Li Hezhi Liu Xiao Hu Ziyi Zhong Fabing Su | 2018 | Nano Research2018，11，2： | 2 |
| 4 | Effects of CuInS_(2)nanoparticles on the alignment control of liquid crystals显示文摘Liquid crystal-nanoparticle composite systems have attracted particular attention for both academic interests and applications in inducing macroscopic alignment,altering electro-optic response of the liquid crystal hosts,and generating ordered,tunable soft metamaterials.Herein,the synthesis of two shapes of CuInS_(2)nanoparticles,tremelliform-like CuInS_(2)and frame-like CuInS_(2),and their utilization in producing uniform homeotropic alignment of liquid crystals are reported.Through exploring the mechanism in detail,the crystal structures of CuInS_(2)nanoparticles were found to rely heavily on the reaction solvents during the growth process,which in turn play a significant role on the anchor of liquid crystal molecules.The achieved homeotropic alignment shows high thermal stability,owing to the outstanding stability of the CuInS_(2)nanoparticles.In addition,combining this feasible method with parallel-aligning technique,variable pretilt angles in a range of~0.9°to~7.2°could be continuously achieved. | Dongyu Zhao Yuanyuan Guo Weihua Bi Xin Li Ran Duan Lin Guo | 2022 | Nano Research2022，15，8： | 0 |
| 5 | 纳米掺杂对液晶电光性能影响显示文摘液晶显示领域中的一个重要研究方向是液晶电光性能的改善。近年来,液晶-纳米科学见证了纳米掺杂增强液晶电光性质的范式转变。一方面,纳米颗粒具备特殊的理化性质能有效改善分散基质的性质;此外,纳米掺杂的液晶复合体系制备工艺简单、电光特性卓越,在显示领域占据重要地位。利用液晶与纳米颗粒间的不同相互作用,研究人员设计了一系列具有高稳定性、低成本、可调谐和可持续的电光器件。然而,纳米颗粒的掺杂有可能造成结构缺陷,不利于液晶的稳定。因此,纳米颗粒的选择是影响液晶电光性能的关键。本文概述了液晶-纳米复合体系的电光特性,着重讨论了纳米颗粒与液晶分子间可能存在的相互作用。同时,综述纳米颗粒掺杂液晶的研究现状,根据纳米颗粒类型总结了纳米掺杂对液晶电光性能的影响,并在此基础上,对未来液晶显示技术与纳米技术的结合进行了展望。 | 童颖萍 唐瑞琪 段然 陈影 赵东宇 | 2023 | 液晶与显示2023，38，9： | 0 |
| 6 | Au纳米颗粒对向列相液晶取向性能的影响显示文摘液晶分子的初始排列在液晶显示器中起着关键的作用。纳米粒子掺杂到液晶体系可扰乱液晶分子的排列,从而改变液晶的自组装特性,进而影响液晶的各项性能。将制备的Au八面体纳米颗粒掺杂到向列相液晶4-氰基-4′-正戊基联苯(5CB)中,灌入液晶盒后,通过使用偏光显微镜对液晶盒的观察发现,掺杂的八面体Au纳米颗粒诱导5CB液晶分子发生了垂直取向,而球形Au纳米颗粒不能诱导液晶分子垂直取向。这归因于八面体Au纳米颗粒的表面能比较小,液晶分子间的作用力比较大,使液晶分子易于垂直取向。随着O-Au NPs的浓度增大,液晶分子的取向效果先变好又逐渐变差。这是因为O-Au NPs的浓度越高,可诱导越多的液晶分子垂直取向排列,但随着纳米粒子浓度的增加,纳米粒子团聚,减少了与液晶分子的作用,使取向效果变差。动态过程实验显示,0.1%的八面体金纳米颗粒可诱导向列相液晶5CB在2 min内快速完成垂直取向,表明O-Au NPs具有优异的诱导5CB取向的动态效果。 | 王旭娟 马杰 梁兰菊 王娅茹 | 2020 | 光电子.激光2020，31，2： | 0 |
| 7 | Nanosize-effect on the distribution of heavy metals in copper smelting dust:Based on sophisticated dust sorting approach显示文摘Dust particles emitted from smelters can be hazardous to ecosystems and humans,as they are often enriched in metallic compounds.Here,we combined multi-method mineralogical analysis with a sophisticated size sorting approach for copper smelting dust to study the nanosize-effect on heavy metal distribution,which has hitherto been underestimated.Three types of dust were collected from a copper flash smelter and then size-sorted using a Dekati low-pressure impactor.Results showed that all three samples could easily sort out nanoscale dust particles(<1μm,grades 10–2)and even those smaller than 100 nm(grades 5–2).Especially for electrostatic precipitators dust,the mass fraction of nanoscale dust(<1μm)could reach 10.71%.The presence of heavy metals(Pb,Zn,Cu,and As)and their mineral species in dust was examined at various particle sizes.It was discovered that different heavy metals are enriched on nanoparticles in specific sizes.In micron-sized particles,heavy metals are generally found in discrete phases(e.g.,CuSO_(4),PbSO_(4),and As_(2)O_(3)).In nanoscale particles,the dominant phase is Fe_(3)O_(4),while heavy metals are mostly found in lattice substitution(e.g.,CuFe_(2)O_(4)and ZnFe_(2)O_(4)).Two distinct nano-dust morphologies were found:One with irregular mesh or chain structures consisting of particles of a few nanometers,and the other with polygonal crystals in larger sizes of hundreds of nanometers.The enrichment of heavy metals in the latter morphology is more pronounced,possibly because lattice substitution of heavy metals is more likely to occur when polycrystalline particles are formed. | Ken Li Zuwu Liao Hengdi Ye Qingzhu Li Fenghua Shen Qian Li Hui Liu Qingwei Wang Xu Yan Zhang Lin Liyuan Chai | 2024 | Nano Research2024，17，1： | 0 |
| 8 | AIEgen containing side-chain liquid crystalline polymers: Photoluminecence or photothermal, which dominate?显示文摘Why many luminescent liquid crystalline polymers(LLCPs)containing aggregation-induced emission luminogen(AIEgen)show weak emission is a question still to be answered.Herein,a series of LLCPs(α-Pns,n=4,8,and 12)with polynorbornene as main chain and twoα-dicyanodistyrylbenzene(α-DCS)as side chain are successfully synthesized to solve this issue.Differential scanning calorimetry(DSC),polarized light microscopy(PLM),one-dimentional(1D),two-dimentional(2D)middle-angle and wide-angle X-ray scattering(MAXS and WAXS)results demonstrate that the polymers form smectic A(SmA)phase with the side chains interdigitated packed within the smectic layers.Meanwhile,the photophysical properties ofα-Pns were investigated by ultraviolet-visible(UV-vis)absorption,steady state and time-resolved spectroscopy,and photothermal effect.Results show that the polymers are AIE active,but emit weak emission.The emission peak ofα-Pns film red-shift from 473 to 531 nm,the quantum yield gradually increases from around 1.6%to 14.7%,and the photothermal conversion efficiency decreases from 39%to 19%with the alkyl tail length increased.The photothermal effect,but not photoluminescence,dominates the excited state relaxation. | Lei Tao He-Lou Xie Xin Qi Jun Song Hong Xin Zhen-Qiang Yu | 2022 | Nano Research2022，15，10： | 0 |
| 9 | ZnO纳米结构对液晶取向控制研究显示文摘为了弥补传统液晶取向方式存在的不足,研发出低成本、制作简单、取向效果更优异的取向技术,本文使用简单的实验方法将纳米ZnO自组装到氧化铟锡玻璃基板上,并通过改变ZnO的煅烧温度,调控其纳米结构;继而结合摩擦方法,实现对液晶分子预倾角的调控。实验结果表明,ZnO的煅烧温度越高,液晶分子的预倾角越接近0°。反之,煅烧温度越低,液晶预倾角越接近90°。本文通过调节自组装的ZnO纳米结构,实现了对液晶分子预倾角0°~90°范围内的调控。 | 邹凤萍 毕伟华 段然 项颖 赵东宇 | 2022 | 液晶与显示2022，37，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员