基于水热反应制备SnO_(2)纳米棒阵列  

Control of Morphology of SnO_(2) Nanorod Array by Hydrothermal Reaction Process

作　　者：杨高元 向文灏 刘德政[1] 屈俊豪 梁英[1] 李望南[1] 徐可 钟杰[2] 黄福志[2] 陈美华[1] 梁桂杰[1] YANG Gaoyuan;XIANG Wenhao;LIU Dezheng;QU Junhao;LIANG Ying;LI Wangnan;XU Ke;ZHONG Jie;HUANG Fuzhi;CHEN Meihua;LIANG Guijie(Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices,Hubei University of Arts and Science,Xiangyang 441053,China;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[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

出　　处：《材料研究学报》2021年第4期293-301,共9页Chinese Journal of Materials Research

基　　金：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)~~。

摘　　要：采用水热反应制备一维SnO_(2)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。One-dimensional SnO_(2)nanorod arrays(1 D-SnO_(2)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 1 D-SnO_(2)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.

关 键 词：无机非金属材料 SnO_(2)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 

分 类 号：TB43[一般工业技术]