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Nanomaterials 2016, 6(4), 55; doi:10.3390/nano6040055

Numerical Study of Complementary Nanostructures for Light Trapping in Colloidal Quantum Dot Solar Cells

1
Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada
2
Key Laboratory of Coherent Light and Atomic and Molecular Spectroscopy of Ministry of Education, College of Physics, Jilin University, Changchun 130012, China
*
Author to whom correspondence should be addressed.
Academic Editor: Guanying Chen
Received: 15 February 2016 / Revised: 18 March 2016 / Accepted: 21 March 2016 / Published: 25 March 2016
(This article belongs to the Special Issue Nanostructured Solar Cells)
View Full-Text   |   Download PDF [2042 KB, uploaded 25 March 2016]   |  

Abstract

We have investigated two complementary nanostructures, nanocavity and nanopillar arrays, for light absorption enhancement in depleted heterojunction colloidal quantum dot (CQD) solar cells. A facile complementary fabrication process is demonstrated for patterning these nanostructures over the large area required for light trapping in photovoltaic devices. The simulation results show that both proposed periodic nanostructures can effectively increase the light absorption in CQD layer of the solar cell throughout the near-infrared region where CQD solar cells typically exhibit weak light absorption. The complementary fabrication process for implementation of these nanostructures can pave the way for large-area, inexpensive light trapping implementation in nanostructured solar cells. View Full-Text
Keywords: solar cells; nanostructures; light trapping solar cells; nanostructures; light trapping
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wei, J.; Xiong, Q.; Mahpeykar, S.M.; Wang, X. Numerical Study of Complementary Nanostructures for Light Trapping in Colloidal Quantum Dot Solar Cells. Nanomaterials 2016, 6, 55.

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