Design of nano-pattern reflectors for thin-film solar cells based on three-dimensional optical and electrical modeling

H. H. Hsiao; H. C. Chang; Y. R. Wu

doi:10.1117/12.2079582

Design of nano-pattern reflectors for thin-film solar cells based on three-dimensional optical and electrical modeling

H. H. Hsiao, H. C. Chang, Y. R. Wu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The optical and electrical properties of a photonic-plasmonic nanostructure on the back contact of thin-film solar cells were investigated numerically through the three-dimensional (3D) finite-difference time-domain method and the 3D Poisson and drift-diffusion solver. The focusing effect and the Fabry-Perot resonances are identified as the main mechanisms for the enhancement of the optical generation rate as well as the short circuit current density. However, the surface topography of certain nanopattern structures is found to reduce the internal electrostatic field of the device, thus limiting charge collection. The optimized conditions for both optics and electronics have been analyzed in this paper.

Original language	English
Title of host publication	Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV
Publisher	SPIE
Volume	9358
ISBN (Electronic)	9781628414486
DOIs	https://doi.org/10.1117/12.2079582
Publication status	Published - 2015
Externally published	Yes
Event	Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV - San Francisco, United States Duration: Feb 10 2015 → Feb 12 2015

Conference

Conference	Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV
Country	United States
City	San Francisco
Period	2/10/15 → 2/12/15

Keywords

amorphous silicon
nanostructure
Thin-film solar cells

ASJC Scopus subject areas

Applied Mathematics
Computer Science Applications
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1117/12.2079582

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Hsiao, HH, Chang, HC & Wu, YR 2015, Design of nano-pattern reflectors for thin-film solar cells based on three-dimensional optical and electrical modeling. in Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV. vol. 9358, 935808, SPIE, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV, San Francisco, United States, 2/10/15. https://doi.org/10.1117/12.2079582

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AU - Hsiao, H. H.

AU - Chang, H. C.

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Y1 - 2015

N2 - The optical and electrical properties of a photonic-plasmonic nanostructure on the back contact of thin-film solar cells were investigated numerically through the three-dimensional (3D) finite-difference time-domain method and the 3D Poisson and drift-diffusion solver. The focusing effect and the Fabry-Perot resonances are identified as the main mechanisms for the enhancement of the optical generation rate as well as the short circuit current density. However, the surface topography of certain nanopattern structures is found to reduce the internal electrostatic field of the device, thus limiting charge collection. The optimized conditions for both optics and electronics have been analyzed in this paper.

AB - The optical and electrical properties of a photonic-plasmonic nanostructure on the back contact of thin-film solar cells were investigated numerically through the three-dimensional (3D) finite-difference time-domain method and the 3D Poisson and drift-diffusion solver. The focusing effect and the Fabry-Perot resonances are identified as the main mechanisms for the enhancement of the optical generation rate as well as the short circuit current density. However, the surface topography of certain nanopattern structures is found to reduce the internal electrostatic field of the device, thus limiting charge collection. The optimized conditions for both optics and electronics have been analyzed in this paper.

KW - amorphous silicon

KW - nanostructure

KW - Thin-film solar cells

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