One-step synthesis of flower-like Cu2O photoelectric materials by hydrothermal method. (August 2019)

• Record Type: Journal Article
• Authors: Yuan, Binxia; Liu, Xiaobo; Fu, Honghong; Liu, Jianfeng; Zhu, Qunzhi; Wu, Maoliang
• Is Part Of: Solar energy. Volume 188(2019)
• Page Start: 265
• Page End: 270
• Publication Date: 2019-08
• Subjects: Cu2O -- Flower-like -- Photoelectric materials -- Hydrothermal method; Solar energy -- Periodicals; Solar engines -- Periodicals; 621.47
• DOI: 10.1016/j.solener.2019.06.014
• Languages: English
• ISSNs: 0038-092X

Abstract

Highlights: The flower-like Cu2 O was synthesized by using water as solvent. The reaction temperature was less than 90 °C. The synthetic process was very simple and non-toxicity. Abstract: In the paper, the flower-like Cu2 O had been obtained in the distilled water under very low reaction temperature. This hydrothermal method provided a homogenous environment for the nucleation and growth of the Cu2 O. The reaction temperature, time, solvent, and additives would affect the purity and morphology of samples. When the reaction temperature was greater than 90 °C, elementary copper appeared in the as-obtained sample. With the reaction temperature and time increase, the morphologies also had been changed. The changing process of these morphologies had also been discussed. When ethanol amine replaced some or all of the aqueous solution, the resulting product is pure copper. Meantime, the effect of copper sources and additives on purity and morphology of products were investigated. Finally, the optical properties and PEC properties of the flower-like Cu2 O were studied. This paper provided a very simple and low cost method to synthesis of flower-like Cu2 O, which would be of great potential for the synthesis of other metal chalcogenides.