异质结
离子
光电效应
光电子学
材料科学
可再生能源
超短脉冲
激发态
对偶(语法数字)
载流子
纳米技术
化学
光学
电气工程
原子物理学
物理
艺术
工程类
文学类
有机化学
激光器
作者
Jinhang Li,Yuqiang Zhang,Yiyang Mao,Yingying Zhao,Dongxiao Kan,Kai Zhu,Shulei Chou,Xitian Zhang,Chunling Zhu,Jing Ren,Yujin Chen
标识
DOI:10.1002/anie.202303056
摘要
Exploiting dual-functional photoelectrodes to harvest and store solar energy is a challenging but efficient way for achieving renewable energy utilization. Herein, multi-heterostructures consisting of N-doped carbon coated MoS2 nanosheets supported by tubular TiO2 with photoelectric conversion and electronic transfer interfaces are designed. When a photo sodium ion battery (photo-SIB) is assembled based on the heterostructures, its capacity increases to 399.3 mAh g-1 with a high photo-conversion efficiency of 0.71 % switching from dark to visible light at 2.0 A g-1 . Remarkably, the photo-SIB can be recharged by light only, with a striking capacity of 231.4 mAh g-1 . Experimental and theoretical results suggest that the proposed multi-heterostructures can enhance charge transfer kinetics, maintain structural stability, and facilitate the separation of photo-excited carriers. This work presents a new strategy to design dual-functional photoelectrodes for efficient use of solar energy.
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