Cu2O/CuO composite for efficient performance in photoelectrochemical and optoelectronics applications
文献类型：期刊论文
| 作者 | Khalifa, Mahmoud A.1,2 |
| 刊名 | PHYSICA SCRIPTA
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 99 |
| 关键词 | Cu2O Cu2O/CuO composite annealing treatment photoelectrochemical and optoelectronics applications |
| ISSN号 | 0031-8949 |
| DOI | 10.1088/1402-4896/ad51b5 |
| 通讯作者 | Khalifa, Mahmoud A.(khalifa@hmfl.ac.cn) |
| 英文摘要 | This study introduces a highly active photoelectrode, comprising a Cu2O/CuO composite, synthesized through annealing Cu2O thin film under controlled conditions to induce partial oxidation. Through systematic investigation of annealing conditions, including temperature and duration, an optimal synthesis condition of 400 degrees C for 1 h was identified, resulting in superior photoelectrochemical and optoelectronic properties. It yielded the most favorable outcomes, exhibiting the largest charge carrier density of 1.09 x 10(21) cm(-3), lowest charge transfer resistance of 18.8 Omega, and highest photocurrent density of -2.97 mA cm(-2) with stability of 81%. This performance enhancement, which surpassed the initial photocurrent by 7 times under AM 1.5 simulated sunlight illumination at 0 V versus the reversible hydrogen electrode (RHE), is attributed to the formation of the Cu2O/CuO composite. This composite facilitates improved electron-hole pair separation efficiency, while the narrow bandgap of CuO enables enhanced light absorption. Additionally, the stability of the photocurrent is significantly improved by 2.3 times, attributed to the protective function of the CuO layer on Cu2O. Thus, the Cu2O/CuO composite emerges as a highly efficient and promising photocathode, offering a facile and cost-effective route for photoelectrochemical and optoelectronics applications. |
| WOS关键词 | FACILE SYNTHESIS ; ATOMIC LAYER ; WATER ; HETEROJUNCTION ; PHOTOCATHODES ; DEPOSITION ; FILMS |
| 资助项目 | ANSO Visiting Fellowship on Mega-Science Facilities |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001249976200001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | ANSO Visiting Fellowship on Mega-Science Facilities |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/136542]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Khalifa, Mahmoud A. |
| 作者单位 | 1.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China 2.Mansoura Univ, Fac Sci, Phys Dept, Mansoura 35516, Egypt |
| 推荐引用方式 GB/T 7714 | Khalifa, Mahmoud A.. Cu2O/CuO composite for efficient performance in photoelectrochemical and optoelectronics applications[J]. PHYSICA SCRIPTA,2024,99. |
| APA | Khalifa, Mahmoud A..(2024).Cu2O/CuO composite for efficient performance in photoelectrochemical and optoelectronics applications.PHYSICA SCRIPTA,99. |
| MLA | Khalifa, Mahmoud A.."Cu2O/CuO composite for efficient performance in photoelectrochemical and optoelectronics applications".PHYSICA SCRIPTA 99(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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