首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Broadband absorption enhancement with ultrathin MoS_2 film in the visible regime
Authors:Jun Wu
Institution:(College of Electrical Engineering,Anhui Polytechnic University,Wuhu 241000,China;Department of Physics,Zhejiang University of Science and Technology,Hangzhou 310023,China)
Abstract:The broadband absorption enhancement effect in ultrathin molybdenum disulfide(Mo S2) films is investigated. It is achieved by inserting the Mo S2 film between a dielectric film and a one-dimensional silver grating backed with a silver mirror. The broadband absorption enhancement in the visible region is achieved, which exhibits large integrated absorption and short-circuit current density for solar energy under normal incidence. The optical properties of the proposed absorber are found to be superior to those of a reference planar structure, which makes the proposed structure advantageous for practical photovoltaic application. Moreover, the integrated absorption and short-circuit current density can be maintained high for a wide range of incident angles. A qualitative understanding of such broadband absorption enhancement effect is examined by illustrating the electromagnetic field distribution at some selected wavelengths. The results pave the way for developing high-performance optoelectronic devices, such as solar cells, photodetectors, and modulators.
Keywords:
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号