基于水热反应制备<strong>SnO<sub>2</sub></strong>纳米棒阵列

doi:10.11901/1005.3093.2020.143

材料研究学报

2021, Vol. 35

Issue (4): 293-301 DOI: 10.11901/1005.3093.2020.143

研究论文

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基于水热反应制备SnO₂纳米棒阵列

杨高元¹, 向文灏², 刘德政¹, 屈俊豪¹, 梁英¹, 李望南¹, 徐可¹, 钟杰², 黄福志², 陈美华¹(

), 梁桂杰¹(

)

^1.湖北文理学院低维光电材料与器件湖北省重点实验室襄阳 441053
^2.武汉理工大学材料复合新技术国家重点实验室武汉 430070

Control of Morphology of SnO₂ Nanorod Array by Hydrothermal Reaction Process

YANG Gaoyuan¹, XIANG Wenhao², LIU Dezheng¹, QU Junhao¹, LIANG Ying¹, LI Wangnan¹, XU Ke¹, ZHONG Jie², HUANG Fuzhi², CHEN Meihua¹(

), LIANG Guijie¹(

)

^1.Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang 441053, China
^2.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

引用本文:

杨高元, 向文灏, 刘德政, 屈俊豪, 梁英, 李望南, 徐可, 钟杰, 黄福志, 陈美华, 梁桂杰. 基于水热反应制备SnO₂纳米棒阵列[J]. 材料研究学报, 2021, 35(4): 293-301.
Gaoyuan YANG, Wenhao XIANG, Dezheng LIU, Junhao QU, Ying LIANG, Wangnan LI, Ke XU, Jie ZHONG, Fuzhi HUANG, Meihua CHEN, Guijie LIANG. Control of Morphology of SnO₂ Nanorod Array by Hydrothermal Reaction Process[J]. Chinese Journal of Materials Research, 2021, 35(4): 293-301.

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摘要:

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。

关键词 ：无机非金属材料, SnO₂纳米棒阵列, 形貌调控, 取向生长, 水热工艺参数, 钙钛矿太阳能电池

Abstract：

One-dimensional SnO₂ nanorod arrays (1D-SnO₂ NRAs) have been synthesized through hydrothermal method. The influence of hydrothermal parameters such as precursor concentration, reaction time, temperature, number of reaction and NaCl addition on the growth and morphology of 1D-SnO₂ NRAs were investigated by means of scanning electron microscopy with energy dispersive spectroscopy and X-ray diffractometer . The results show that the low precursor concentration is conducive to the preparation of nanorods with large aspect ratio, while the reaction time can selectively change the length of the nanorods. Interestingly, the growth of the nanorod array has apparent temperature sensitivity, that is, the rod length, diameter and substrate coverage all increase significantly as the reaction temperature increases. Furthermore, the NaCl additives in the precursor can favor the oriented growth, whilst restrain the substrate coverage of nanorods.

Key words： inorganic non-metallic materials SnO₂ nanorod arrays morphology control oriented growth hydrothermal process parameters perovskite solar cells

收稿日期: 2020-04-26

ZTFLH:

TB43

基金资助:湖北省自然科学基金(2019CFB774);“机电汽车”湖北省优势特色学科群开放基金(XKQ2020024)

作者简介: 杨高元，男，1996年生，硕士生
向文灏，男，1997年生，本科生

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	杨高元
	向文灏
	刘德政
	屈俊豪
	梁英
	李望南
	徐可
	钟杰
	黄福志
	陈美华
	梁桂杰
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https://www.cjmr.org/CN/10.11901/1005.3093.2020.143 或 https://www.cjmr.org/CN/Y2021/V35/I4/293

图1 钙钛矿太阳能电池的工作示意图，其中ETL和HTL分别代表电子传输层和空穴传输层

图2 使用不同浓度前驱体生成的纳米棒阵列的XRD衍射谱和(101)晶面与(200)晶面的峰强比

图3 使用不同前驱体浓度生成的纳米棒阵列的SEM照片所对应的截面图

图4 不同反应时间生成的纳米棒阵列的XRD谱

图5 不同反应时间生成的纳米棒阵列表面和截面的SEM照片

图6 水热反应温度不同的纳米棒阵列的XRD衍射谱和(101)晶面与(200)晶面处的峰强比(b)

图7 反应温度不同的纳米棒阵列表面和截面的SEM照片

图8 反应次数不同的纳米棒阵列的XRD衍射谱(a)和(101)晶面与(200)晶面处的峰强比

图9 反应次数不同的纳米棒阵列表面和截面的SEM照片

图10 不同NaCl添加量的纳米棒阵列的XRD衍射图和(101)晶面与(200)晶面处的峰强比

图11 NaCl添加量不同的纳米棒阵列表面和截面的SEM照片

表1 水热反应条件不同的SnO2纳米棒阵列的尺寸和形貌参数

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