Sustainable Transparent Conducting Oxide Nanomaterials; Aluminium- and Gallium-Co-Doped Zinc Oxide (AGZO)
Sustainable Transparent Conducting Oxide Nanomaterials; Aluminium- and Gallium-Co-Doped Zinc Oxide (AGZO)
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可持续透明导电氧化物纳米材料；
DOI：
10.1166/jnn.2016.12839
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发表时间：
2016
影响因子：
--
通讯作者：
Howard D
中科院分区：
文献类型：
--
作者：
Howard D
采用连续水热流合成 (CHFS) 反应器，在甲酸作为工艺还原剂存在下，通过水性金属盐前体的快速水解和脱水，合成了基于铝和镓掺杂的氧化锌（Al 和 Ga 共掺杂 ZnO，AGZO）的透明导电氧化物（TCO）纳米颗粒。通过粉末X射线衍射(pXRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、能量色散X射线能谱(EDS)和X射线光电子能谱(XPS)对合成的粉末进行了表征。将合成的粉末压制成陶瓷坯体并进行热处理，以确保纯相纤锌矿结构。通过霍尔探针测量压块来评估材料的电性能，显示电阻率低至 4.55 × 10−2 Ω cm，这代表基于 ZnO 的压制圆盘具有非常高的电导率。
Transparent conducting oxide (TCO) nanoparticles based on zinc oxide doped with aluminium and gallium (Al- and Ga-co-doped ZnO, AGZO) were synthesized using a continuous hydrothermal flow synthesis (CHFS) reactor by rapid hydrolysis and dehydration of aqueous metal salt precursors, in the presence of formic acid as an in-process reducing agent. The as-synthesised powders were characterized by powder X-ray diffraction (pXRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The as-synthesised powders were pressed into ceramic compacts and heat-treatment to ensure phase-pure wurtzite structure. The electrical properties of the materials were evaluated by Hall Probe measurements on the compacts, showing resistivities as low as 4.55 × 10−2 Ω cm, which represents a very high conductivity for a pressed disc based on ZnO.