引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1047次   下载 52 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Dark Color ZnO Quasi-One-Dimensional Nanostructures Grown by Hydrothermal Method and Modulation of their Optical Properties
Hao Chen, Na Dong, Kai Wang, Yi Yao, Faqiang Xu*
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
Abstract:
Zinc oxide has a large energy gap and thus it has potential application in the field of solar cells by tuning the absorption of sunlight. In order to enhance its absorption of sunlight, dark color zinc oxides have been prepared by traditional hydrothermal method directly using a zinc foil as both source and substrate. We found that we could tune the optical properties of ZnO samples by changing the temperature. In particular, increasing temperature could significantly reduce the reflectivity of solar energy in the visible range. We speculate that the phenomenon is relevant to the sharp cone morphology of the ZnO nanorods grown on the surface of Zn foils, which furthermore enhance refraction and reflection of light in the nanorods. The capacity to improve the light absorption of ZnO may have a bright application in raising the efficiency of solar cells.
Key words:  Hydrothermal method, Dark color ZnO samples, Enhanced optical properties
FundProject:
准一维深色纳米ZnO的水热方法生长及其结构和光学性能的调变
陈 昊, 董 纳, 王 凯, 姚 一, 徐法强*
中国科学技术大学国家同步辐射实验室,合肥 230029
摘要:
本文以高纯度金属锌箔为Zn和衬底,利用传统的水热合成方法制备了深色的纳米结构ZnO. 研究发现,改变制备温度可以调变ZnO样品的颜色和光学性能,尤其是提高温度可以显著地降低可见光波段太阳能的活性. 推测这种现象与ZnO纳米棒顶端的尖锥形貌密切相关,这种结构加剧了光在ZnO纳米棒之间的折射和反应. 改善ZnO的光吸收能力对于提升ZnO基太阳电池的效率有重要意义.
关键词:  水热方法,深色ZnO,光性能增强
DOI:10.1063/1674-0068/cjcp1903045
分类号: