Stability and spectroscopic analysis of CsPbBr3 quantum dots modified with 2- n-octyl-1-dodecanol

doi:10.1039/d3ay00542a

CIOMP OpenIR

	Stability and spectroscopic analysis of CsPbBr3 quantum dots modified with 2- n-octyl-1-dodecanol
	H. Y. Chen, M. S. Liu, J. N. Wang, Y. F. Wang, Y. J. Wang and W. Y. Liu
	2023
发表期刊	Analytical Methods
ISSN	1759-9660
卷号	15 期号:27 页码:3318-3324
摘要	Due to their excellent optical and electrical properties, all-inorganic metal halide perovskite CsPbBr3 quantum dots (QDs) have become one of the most promising materials in the field of optoelectronics during recent years. However, the stability of CsPbBr3 QDs limits their practical application and further development to a certain extent. In order to improve their stability, CsPbBr3 QDs were modified with 2-n-octyl-1-dodecanol for the first time in this paper. The 2-n-octyl-1-dodecanol-modified CsPbBr3 QDs were prepared by the ligand-assisted reprecipitation (LARP) method at room temperature in an air environment. Then the stability of the samples was tested at different temperatures and humidity. When the humidity was 80%, the photoluminescence (PL) intensity of both unmodified and modified CsPbBr3 QDs increased to different degrees because the appropriate amount of water changed the crystallization environment. The PL intensity of the modified QDs increased, and the peak positions were basically not shifted, proving that they did not agglomerate. Thermal stability test results showed that the PL intensity of the 2-n-octyl-1-dodecanol-modified QDs could still maintain 65% of the original intensity at 90 & DEG;C, which is 4.6 times that of the unmodified CsPbBr3 QDs. Experimental results show that the stability of CsPbBr3 QDs is significantly improved after 2-n-octyl-1-dodecanol modification, which demonstrates the excellent surface passivation of CsPbBr3 QDs by 2-n-octyl-1-dodecanol.
DOI	10.1039/d3ay00542a
URL	查看原文
收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67365
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	H. Y. Chen, M. S. Liu, J. N. Wang, Y. F. Wang, Y. J. Wang and W. Y. Liu. Stability and spectroscopic analysis of CsPbBr3 quantum dots modified with 2- n-octyl-1-dodecanol[J]. Analytical Methods,2023,15(27):3318-3324.
APA	H. Y. Chen, M. S. Liu, J. N. Wang, Y. F. Wang, Y. J. Wang and W. Y. Liu.(2023).Stability and spectroscopic analysis of CsPbBr3 quantum dots modified with 2- n-octyl-1-dodecanol.Analytical Methods,15(27),3318-3324.
MLA	H. Y. Chen, M. S. Liu, J. N. Wang, Y. F. Wang, Y. J. Wang and W. Y. Liu."Stability and spectroscopic analysis of CsPbBr3 quantum dots modified with 2- n-octyl-1-dodecanol".Analytical Methods 15.27(2023):3318-3324.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Stability and spectr（1192KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载