Effects of lithium (Li) on lithium-cuprous-oxide (Li-Cu2O) composite films grown by using electrochemical deposition for a PEC photoelectrode
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- 作者：Tae Gyoum Kim ; Hyukhyun Ryu ; Won-Jae Lee
- 关键词：Photoelectrochemical (PEC) ; Li ; Cu2O composite films ; Electrochemical deposition ; Photostability
- 刊名：Journal of the Korean Physical Society
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：68
- 期：2
- 页码：268-273
- 全文大小：1,371 KB
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Hyukhyun Ryu (1)
Won-Jae Lee (2)
1. Department of Nano Science and Engineering, High Safety Vehicle Core Technology Research Center, Inje University, Gimhae, 50834, Korea
2. Department of Materials and Components Engineering, Dong-Eui University, Busan, 47340, Korea - 刊物主题：Physics, general; Theoretical, Mathematical and Computational Physics; Particle and Nuclear Physics;
- 出版者：Springer Netherlands
- ISSN：1976-8524
文摘
In this study, Li-Cu2O composite films were grown on fluorine-doped tin-oxide (FTO) substrates by using the electrochemical deposition method. Various amounts of lithium (Li) were added to grow the Li-Cu2O composite films. We analyzed the morphology, structure, photocurrent density and photo-stability of the Li-Cu2O composite films by using various measurements such as field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and potentiostat/galvanostat measurements, respectively. As a result, the highest XRD Cu2O (111)/ LiO (011) peak intensity ratio was obtained for the 10-wt% sample, which also had the highest photocurrent density value of -5.00 mA/cm2. The highest photocurrent density value for the 10-wt% sample was approximately 5 times greater than that of the 0-wt% sample. As shown by this result, we found that adding Li could improve the photocurrent values of Li-Cu2O composite films. Keywords Photoelectrochemical (PEC) Li-Cu2O composite films Electrochemical deposition Photostability