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1High-efficiency extraction synthesis for high-purity copper nanowires and their applications in flexible transparent electrodes显示文摘Copper nanowires(Cu NWs)are considered an excellent alternative to indium tin oxide(ITO)in flexible transparency electrodes(FTEs).However,the mixed particles and surface oxidation of Cu NWs degrade the transmittance and conductivity of the electrodes.Therefore,highly purified Cu NWs without oxidation are vital for high-performance FTEs.Herein,a facile and effective purification process is introduced to purify Cu NWs in a water and n-hexane system,which takes advantage of the differences in hydrophilicity between Cu NWs and Cu NPs caused by their different adsorption affinities to octadecylamine(ODA).At the same sheet resistance,the transmittance of the purified Cu NW-based FTEs improved approximately 2%compared to that of non-purified Cu NW-based FTEs.Immersion of the electrode in glacial acetic acid removed the surface organics and oxides.After only 40 s of treatment,the sheet resistance dramatically decreased from 10^5 Ohm/sq to 31 Ohm/sq with a transmittance of 85%.In addition,the Cu NW-based FTE conductors showed excellent flexibility(remaining stable after 1000 bending cycles).The Cu NW-based FTEs were further applied to fabricate a flexible transparent heater.At a voltage of 10 V,the temperature of the heater reached 73℃,demonstrating the potential applications of this material in various fields.He Zhang Shang Wang Yanhong Tian Jiayue Wen Chunjin Hang Zhen Zheng Yilong Huang Su Ding Chenxi Wang 2020Nano Materials Science2020,2,2:4
2银纳米结构可控合成与应用研究进展显示文摘随着纳米技术研究的不断深入,以银纳米材料为代表的贵金属纳米材料成为当前的热点。银纳米材料在化学催化、医学抗菌和光电器件等方面所表现的独特性能都与其纳米结构、形貌和尺寸等息息相关。近年来,纳米材料及其器件的应用领域不断扩大,对银纳米结构、形貌和尺寸的可控合成提出了更高的要求。从纳米材料的三个维度出发,讨论了不同维度的银纳米结构形态可控合成的方法,指出了形貌可控合成方法的关键,分析比较了不同合成方法的优缺点,并对银纳米材料未来的发展趋势做出了展望。陈俊龙 李志航 梁宏富 叶倩楠 侯丹清 李锦雄 张旭 姚日晖 宁洪龙 彭俊彪 2020东莞理工学院学报2020,27,5:2
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