A general one-pot strategy for the synthesis of high-performance transparent-conducting-oxide nanocrystal inks for all-solution-processed devices.
A general one-pot strategy for the synthesis of high-performance transparent-conducting-oxide nanocrystal inks for all-solution-processed devices.
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DOI：
10.1002/anie.201408621
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发表时间：
2014-11
影响因子：
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通讯作者：
Jizhong Song;S. Kulinich;Jianhai Li;Yanli Liu;H. Zeng
中科院分区：
文献类型：
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作者：
Jizhong Song;S. Kulinich;Jianhai Li;Yanli Liu;H. Zeng
在全溶液加工（ASP）器件中，透明导电氧化物（TCO）纳米晶（NC）墨水有望取代溅射技术合成的墨水和稀有金属组成的墨水，成为下一代电极，但目前还缺乏一种通用的一锅制备方法。现在描述了一种通用的一锅策略；通过简单地加热金属-有机前驱体的混合物，可以合成各种TCO NC油墨，这些油墨可以组装成用于ASP光电子学的高性能电极。该方法可用于各种氧化物NC油墨，收率高达10克。所制备的纳米碳具有高结晶度、均匀的形貌、单分散性和高的油墨稳定性，并具有有效掺杂的特点。因此，油墨可以很容易地组装成表面粗糙度为1.6 nm的薄膜。通常，薄膜电阻为110 Ω sq(-1)，透射率为88%，这是迄今为止描述的TCO NC油墨电极的最佳性能。因此，这些电极可以驱动100毫安厘米（-2）下亮度为2200 cd米（-2）的聚合物发光二极管（PLED）。
For all-solution-processed (ASP) devices, transparent conducting oxide (TCO) nanocrystal (NC) inks are anticipated as the next-generation electrodes to replace both those synthesized by sputtering techniques and those consisting of rare metals, but a universal and one-pot method to prepare these inks is still lacking. A universal one-pot strategy is now described; through simply heating a mixture of metal-organic precursors a wide range of TCO NC inks, which can be assembled into high-performance electrodes for use in ASP optoelectronics, were synthesized. This method can be used for various oxide NC inks with yields as high as 10 g. The formed NCs are of high crystallinity, uniform morphology, monodispersity, and high ink stability and feature effective doping. Therefore, the inks can be readily assembled into films with a surface roughness of 1.6 nm. Typically, a sheet resistance of 110 Ω sq(-1) can be achieved with a transmittance of 88%, which is the best performance for TCO NC ink-based electrodes described to date. These electrodes can thus drive a polymer light-emitting diode (PLED) with a luminance of 2200 cd m(-2) at 100 mA cm(-2).