氧化亚铜的可控制备及光学性能测试创新实验设计  

Innovative Experimental Design for Controllable Synthesis and Optical Performance of Cuprous Oxide

作　　者：郭江娜 周明[1] 张云怀[1] GUO Jiangna;ZHOU Ming;ZHANG Yunhuai(College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 401331,China)

机构地区：[1]重庆大学化学化工学院,重庆401331

出　　处：《实验科学与技术》2024年第6期119-124,共6页Experiment Science and Technology

基　　金：国家重点研发计划青年项目(2022YFC2105700);重庆市高等教育教学改革重点项目(212003);教育部产学合作协同育人项目(202101392020)。

摘　　要：开发了一种简单易行的液相还原法制备氧化亚铜(Cu_(2)O)的新策略,通过改变温度和表面活性剂等反应动力学参数,成功实现了对尺寸与形貌的精准调控,制备了具有八面体和立方体形貌,尺寸在100~650 nm范围内可调的Cu_(2)O半导体材料。实验发现尺寸和形貌的精准调节能显著影响Cu_(2)O产物的颜色,这主要源于对其吸光和载流子传输特性的调控。实验建立了材料合成参数、微观结构与光学性能之间的关联规律。该实验绿色安全、现象直观、可操作性强,应用于本科创新型综合实验教学,有助于学生在实验实践中强化对材料化学知识的理解和运用。A sample,facile,liquid phase reduction approach is developed for the synthesis of Cu_(2)O.In this experiment,the size and morphology of Cu_(2)O could be precisely tuned by readily changing the conditions of reaction kinetics,such as temperature and surfactant.Specially,cubic and octahedral Cu_(2)O are successfully synthesized,respectively,together with tunable particle size in the ranged of 100 nm to 650 nm.It is found that the color of Cu_(2)O could be altered by fine-tuning the size and morphology,due to the obvious change in absorption of light and carriers transport characteristics based on the experimental observation and characterization.The experiment establishes the relationship among synthetic parameters,microstructures,and optical properties,and it could be easily extended to innovative and comprehensive experimental teaching used for the undergraduates because of its safe and green synthesis approach,straight-forward and observable experimental phenomenon,and easy to operate.It would greatly help students understand advanced scientific issues,stimulate their interest in learning,and resolve the practical difficulties in terms of learnt knowledge.

关 键 词：Cu_(2)O 液相还原法 生长调控 光学性能 创新实验设计 

分 类 号：G642[文化科学—高等教育学]