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Issue 40, 2013
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Optical and electrical effects of plasmonic nanoparticles in high-efficiency hybrid solar cells

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Abstract

Plasmonics have been proven to be an effective way to harness more incident light to achieve high efficiency in photovoltaic devices. Herein, we explore the possibility that plasmonics can be utilized to enhance light trapping and power conversion efficiency (PCE) for polymerquantum dot (QD) hybrid solar cells (HSCs). Based on a low band-gap polymer poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]-dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCPDTBT) and a CdSe QD bulk-heterojunction (BHJ) system, gold nanoparticles were doped at different locations of the devices. Successfully, an improved PCE of 3.20 ± 0.22% and 3.16 ± 0.15% was achieved by doping the hole transporting layer and the active layer, respectively, which are among the highest values reported for CdSe QD based HSCs. A detailed study of processing, characterization, microscopy, and device fabrication is conducted to understand the underlying mechanism for the enhanced device performance. The success of this work provides a simple and generally applicable approach to enhance light harnessing of polymer–QD hybrid solar cells.

Graphical abstract: Optical and electrical effects of plasmonic nanoparticles in high-efficiency hybrid solar cells

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Publication details

The article was received on 02 Jul 2013, accepted on 01 Aug 2013 and first published on 01 Aug 2013


Article type: Paper
DOI: 10.1039/C3CP52723A
Citation: Phys. Chem. Chem. Phys., 2013,15, 17105-17111
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    Optical and electrical effects of plasmonic nanoparticles in high-efficiency hybrid solar cells

    W. Fu, X. Chen, X. Yang, L. Wang, Y. Shi, M. Shi, H. Li, A. K.-Y. Jen, J. Chen, Y. Cao and H. Chen, Phys. Chem. Chem. Phys., 2013, 15, 17105
    DOI: 10.1039/C3CP52723A

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