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Design of Metamaterials for Transparent Electrodes, Anti-Reflection Coating, and Light Trapping Structures
, M.Sc. Thesis Sharif University of Technology ; Mehrany, Khashayar (Supervisor) ; Khavasi, Amin (Co-Advisor)
Abstract
In several electro-optic and optoelectronic devices, we require the structures with simultaneous high electrical conductivity and optical transparency so as to transmit the incident light. Transparent Conductive Electrodes (TCEs) that are both highly conductive and transparent were introduced to be an answer to the mentioned challenge. Periodic arrays of metallic holes are amongst the most important structures that are used as transparent electrodes. Using the metals with low electrical resistivity, such as Au and Ag, provides these structures with high electrical conductance. On the other hand, since these micro/nano structures support the propagation of guided electromagnetic waves, light...
Nano-plasmonic thin-film solar cell receiver in visible light communication
, Article 10th International Symposium on Communication Systems, Networks and Digital Signal Processing, 20 July 2016 through 23 July 2016 ; 2016 ; 9781509025268 (ISBN) ; Olyaee, S ; Chizari, A ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
Abstract
We propose a nano-plasmonic thin-film solar cell (TFSC) as a receiver for the visible light communication (VLC). The presented design is a novel and optimized structure that can be used instead of photodetectors and power supplies in the VLC. The plasmonic TFSC that described in this work is capable of increasing the light absorption in comparison with the conventional thick Si solar cell without plasmonic nanostructures. However, plasmonic nanoparticles can improve the absorption of Si solar cell in a visible range of solar spectra. In this paper, different situations for inserting nanoparticles in an active layer are considered and the absorption is calculated as a function of particle...