The Self-Assembling Growth of Copper Nanowires for Transparent Electrodes

Long(15-40 μm), thin(diameter of 20 ± 5 nm), and well-dispersed CuNWs Cu nanowires were prepared. The high-resolution TEM and selected area electron diffraction showed that the CuNWs were single-crystalline. To investigate the growth mechanism, we examined the microstructure of these CuNWs at different reaction time. It was found that the CuNWs were actually formed through the self-assembling of Cu nanoparticles along the [110] direction. The transparent electrodes fabricated using the CuNWs achieved a high transparency of 76 % at 31±5 Ω/□.     

钙钛矿光伏的先进印刷技术研究进展

有机无机杂化钙钛矿太阳能电池具有光电转换效率高、制备成本低等优势,展现出了巨大的应用潜力。然而,钙钛矿电池要实现产业化应用,就必须进行放大,制备出高效稳定的钙钛矿光伏模组,而其中高质量钙钛矿吸光薄膜的放大制备尤为关键。印刷是最廉价、绿色的宏量制备技术之一,也是目前钙钛矿大面积制备所广泛采用的主要技术手段。本文综述了刮涂、狭缝涂布、喷墨打印等6种印刷技术的工作原理和特点,分析了各技术的影响因素和调控机理,并总结了相应的研究进展,旨在为未来钙钛矿大面积制备研究和应用提供参考。     

基于水热反应制备SnO2纳米棒阵列

采用水热反应制备一维SnO₂纳米棒阵列并表征其物相结构和微观形貌,研究了水热反应的核心工艺条件如前驱体浓度、反应时间、反应温度、反应次数以及前驱体中NaCl添加剂等对纳米棒阵列的生长和形貌的影响。结果表明：较低的前驱体浓度有利于制备大长径比的纳米棒;改变反应时间调控纳米棒的长度;改变反应温度和次数调控纳米棒的长度、直径和基底覆盖率;在前驱体中加入NaCl,可增强纳米棒的取向生长并降低其基底覆盖率。