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Simultaneous Optical and Electrical Modeling of Plasmonic Light Trapping in Thin-Film Amorphous Silicon Photovoltaic Devices

Gandhi, KK, Nejim, A, Beliatis, MJ, Mills, CA, Henley, S and Silva, SRP (2015) Simultaneous Optical and Electrical Modeling of Plasmonic Light Trapping in Thin-Film Amorphous Silicon Photovoltaic Devices Journal of Photonics for Energy, 5 (1), 057007.

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Abstract

Rapid prototyping of photovoltaic (PV) cells requires a method for the simultaneous simulation of the optical and electrical characteristics of the device. The development of nanomaterial enabled PV cells only increases the complexity of such simulations. Here, we use a commercial technology-computer-aided-design (TCAD) software, Silvaco Atlas, to design and model plasmonic gold nanoparticles integrated in optoelectronic device models of thin film amorphous silicon (a-Si:H) PV cells. Upon illumination with incident light, we simulate the optical and electrical properties of the cell simultaneously, and use the simulation to produce current-voltage (J-V) and external quantum efficiency (EQE) plots. Light trapping due to light scattering and localized surface plasmon resonance interactions by the nanoparticles has resulted in the enhancement of both the optical and electrical properties due to the reduction in the recombination rates in the photoactive layer. We show that the device performance of the modeled plasmonic a-Si:H PV cells depends significantly on the position and size of the gold nanoparticles, which leads to improvements either in optical properties only, or in both optical and electrical properties. The model provides a route to optimize the device architecture, by simultaneously optimizing the optical and electrical characteristics, which leads to a detailed understanding of plasmonic PV cells from a design perspective and offers an advanced tool for rapid device prototyping.

Item Type: Article
Authors :
AuthorsEmailORCID
Gandhi, KKUNSPECIFIEDUNSPECIFIED
Nejim, AUNSPECIFIEDUNSPECIFIED
Beliatis, MJUNSPECIFIEDUNSPECIFIED
Mills, CAUNSPECIFIEDUNSPECIFIED
Henley, SUNSPECIFIEDUNSPECIFIED
Silva, SRPUNSPECIFIEDUNSPECIFIED
Date : 7 January 2015
Identification Number : https://doi.org/10.1117/1.JPE.5.057007
Uncontrolled Keywords : Plasmonic light trapping, Optoelectronic device modeling, Thin film photovoltaic cells, Finite-difference time-domain method
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 10:52
Last Modified : 28 Mar 2017 10:52
URI: http://epubs.surrey.ac.uk/id/eprint/807046

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