Multilayer nanoparticle arrays for broad spectrum absorption enhancement in thin film solar cells

Krishnan, A and Das, S and Krishna, S R and Khan, Mohammed Zafar Ali (2014) Multilayer nanoparticle arrays for broad spectrum absorption enhancement in thin film solar cells. Optics Express, 22 (3). A800-A811. ISSN 1094-4087

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Abstract

In this paper, we present a theoretical study on the absorption efficiency enhancement of a thin film amorphous Silicon (a-Si) photovoltaic cell over a broad spectrum of wavelengths using multiple nanoparticle arrays. The light absorption efficiency is enhanced in the lower wavelengths by a nanoparticle array on the surface and in the higher wavelengths by another nanoparticle array embedded in the active region. The efficiency at intermediate wavelengths is enhanced by the simultaneous resonance from both nanoparticle layers. We optimize this design by tuning the radius of particles in both arrays, the period of the array and the distance between the two arrays. The optimization results in a total quantum efficiency of 62.35% for a 0.3 μm thick a-Si substrate

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IITH Creators:
IITH CreatorsORCiD
Khan, Mohammed Zafar AliUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Efficiency; Film preparation; Nanoparticles; Optimization; Photovoltaic cells; Silicon; Thin films; Wavelength
Subjects: Physics > Electricity and electronics
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 17 Dec 2014 05:43
Last Modified: 26 Sep 2017 04:46
URI: http://raiith.iith.ac.in/id/eprint/1171
Publisher URL: https://doi.org/10.1364/OE.22.00A800
OA policy: http://www.sherpa.ac.uk/romeo/issn/1094-4087/
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