Journal ArticleDOI
Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology
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TLDR
By applying specific fabrication conditions summarized in the Experimental section and post-production annealing at 150°C, polymer solar cells with power-conversion efficiency approaching 5% were demonstrated.Abstract:
By applying the specific fabrication conditions summarized in the Experimental section and post-production annealing at 150 °C, polymer solar cells with power-conversion efficiency approaching 5 % are demonstrated. These devices exhibit remarkable thermal stability. We attribute the improved performance to changes in the bulk heterojunction material induced by thermal annealing. The improved nanoscale morphology, the increased crystallinity of the semiconducting polymer, and the improved contact to the electron-collecting electrode facilitate charge generation, charge transport to, and charge collection at the electrodes, thereby enhancing the device efficiency by lowering the series resistance of the polymer solar cells.read more
Citations
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Dual electron donor/electron acceptor character of a conjugated polymer in efficient photovoltaic diodes
Christopher R. McNeill,Agnese Abrusci,Jana Zaumseil,Richard Wilson,Mary Mckiernan,Jeremy Burroughes,Jonathan Halls,Neil C. Greenham,Richard H. Friend +8 more
TL;DR: In this paper, the authors report efficient photovoltaic diodes which use poly((9,9-dioctylfluorene)-2,7-diyl-alt-[4,7bis(3-hexylthien-5-yl]-2,1,3-benzothiadiazole]-2′,2″-diym) (F8TBT) both as electron acceptor, in blends with poly(3hexyl-thiophene), and as hole acceptor.
Journal ArticleDOI
Quantitatively Analyzing the Influence of Side Chains on Photovoltaic Properties of Polymer−Fullerene Solar Cells
TL;DR: In this paper, the side chain of a low band gap polymer (PNDT-DTBT) significantly impacts the observed short circuit current (Jsc) and open circuit voltage (Voc) of corresponding polymer based bulk heterojunction (BHJ) solar cells.
Journal ArticleDOI
Transparent Cu nanowire mesh electrode on flexible substrates fabricated by transfer printing and its application in organic solar cells
TL;DR: In this article, a flexible transparent Cu nanowire mesh electrode fabricated by simple transfer printing from flexible PDMS stamp was presented as a potential replacement for the conventional ITO electrode in organic solar cell applications.
Journal ArticleDOI
A Solution-Processed MoOx Anode Interlayer for Use within Organic Photovoltaic Devices
TL;DR: In this paper, a simple, solution-processed route to the development of MoOx thin-films using oxomolybdate precursors is presented, and the chemical, structural, and electronic properties of these species are characterized in detail, within solution and thinfilms, using electrospray ionization mass spectrometry, grazing angle Fourier transform infrared spectroscopy.
Journal ArticleDOI
Controlling phase separation and optical properties in conjugated polymers through selenophene-thiophene copolymerization.
TL;DR: The overall results demonstrate a phase separation that is controlled by elemental differences and should find utility in a variety of studies and optoelectronics uses.
References
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Journal ArticleDOI
Polymer photovoltaic cells : enhanced efficiencies via a network of internal donor-acceptor heterojunctions
TL;DR: In this paper, the carrier collection efficiency and energy conversion efficiency of polymer photovoltaic cells were improved by blending of the semiconducting polymer with C60 or its functionalized derivatives.
Journal ArticleDOI
2.5% efficient organic plastic solar cells
Sean E. Shaheen,Christoph J. Brabec,N. Serdar Sariciftci,F. Padinger,Thomas Fromherz,Jan C. Hummelen +5 more
TL;DR: In this article, the power conversion efficiency of organic photovoltaic devices based on a conjugated polymer/methanofullerene blend is dramatically affected by molecular morphology.
Journal ArticleDOI
Effects of Postproduction Treatment on Plastic Solar Cells
TL;DR: In this article, a post-production treatment that improves the performance of solar cells based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) was developed.
Journal ArticleDOI
Nanoscale Morphology of High-Performance Polymer Solar Cells
Xiaoniu Yang,J Joachim Loos,Sjoerd Veenstra,Wiljan Verhees,MM Martijn Wienk,Jan M. Kroon,Matthias A. J. Michels,René A. J. Janssen +7 more
TL;DR: Both the improved crystalline nature of films and increased but controlled demixing between the two constitutes therein after annealing explains the considerable increase of the power conversion efficiency observed in these devices.
Journal ArticleDOI
Modeling photocurrent action spectra of photovoltaic devices based on organic thin films
TL;DR: In this article, the authors modeled experimental short-circuit photocurrent action spectra of poly(3-(4′-(1″,4″,7″-trioxaoctyl)phenyl)thiophene) (PEOPT)/fullerene (C60) thin film heterojunction photovoltaic devices.