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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Optimized active layer morphology toward efficient and polymer batch insensitive organic solar cells.
Kangkang Weng,Linglong Ye,Linglong Ye,Lei Zhu,Jinqiu Xu,Jiajia Zhou,Xiang Feng,Guanghao Lu,Songting Tan,Feng Liu,Yanming Sun +10 more
TL;DR: This work combines the advantages of the fibril network donor and the state of the art Y6 acceptor in a two-step approach to deliver a high efficiency of 16% without batch-to-batch variation.
Journal ArticleDOI
Highly efficient organic solar cells based on a poly(2,7-carbazole) derivative
Salem Wakim,Serge Beaupré,Nicolas Blouin,Badrou-Réda Aich,Badrou-Réda Aich,Sheila Rodman,Russell Gaudiana,Ye Tao,Mario Leclerc +8 more
TL;DR: In this paper, the effect of polymer molecular weight, PCDTBT[60]PCBM ratio, and active layer thickness on the device performance is reported, and the best performance was obtained when the number-average molecular weights (Mn) are around 20 kDa with a polydispersity index around 2.2.
Journal ArticleDOI
Morphological Stabilization of Polymer Photovoltaic Cells by Using Cross-Linkable Poly(3-(5-hexenyl)thiophene)
TL;DR: In this article, a new cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) was synthesized via the Grignard metathesis route for the purpose of stabilizing the film morphology in polymer photovoltaic cells.
Journal ArticleDOI
Fast-Grown Interpenetrating Network in Poly(3-hexylthiophene): Methanofullerenes Solar Cells Processed with Additive
TL;DR: In this paper, different amounts of 1,8-octanedithiol (OT) were added to the poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) blend system in order to observe the transition between systems with and without additive.
Journal ArticleDOI
Nanomorphology of bulk heterojunction photovoltaic thin films probed with resonant soft X-ray scattering.
Sufal Swaraj,Cheng Wang,Hongping Yan,Benjamin Watts,Jan Lüning,Christopher R. McNeill,Harald Ade +6 more
TL;DR: Resonant soft X-ray scattering is used to show that lack of morphological control contributes to the relatively poor performance of the all-polymer PFB/F8BT devices and may be problematic for all- polymer devices in general.
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.