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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Charge generation and recombination dynamics in poly(3-hexylthiophene)/fullerene blend films with different regioregularities and morphologies.
TL;DR: The charge dissociation and collection have a critical impact on the overall device performance of P3HT/PCBM solar cells, where the phase-separated blend structures have a high tendency to form free carriers and transport these free carriers to the electrode.
Journal ArticleDOI
Coherent ultrafast charge transfer in an organic photovoltaic blend
S. M. Falke,Carlo Andrea Rozzi,Daniele Brida,Daniele Brida,Margherita Maiuri,Michele Amato,Ephraim Sommer,Antoinietta De Sio,Angel Rubio,Giulio Cerullo,Elisa Molinari,Christoph Lienau +11 more
TL;DR: The results show that coherent vibronic coupling between electronic and nuclear degrees of freedom is of key importance in triggering charge delocalization and transfer in a noncovalently bound reference system.
Journal ArticleDOI
Nanoparticle–polymer photovoltaic cells
TL;DR: In this review two general types of nanoparticle-polymer PV cells are considered and compared in detail, and two sets of assembly conditions that are suggested are suggested for constructing PCBM-P3HT (P3 HT is poly(3-hexylthiophene)) or CdSe-P 3HT PV cells with reasonable power conversion efficiency.
Journal ArticleDOI
The role of buffer layers in polymer solar cells
TL;DR: The use and role of buffer layers in polymer solar cells is discussed in this article, where the authors provide an overview of this topic and provide a practical and useful tool for the daily activities of researchers in the field of polymer photovoltaics.
Journal ArticleDOI
Polymer Photovoltaic Cells Based on Solution-Processable Graphene and P3HT
Qian Liu,Zunfeng Liu,Xiaoyan Zhang,Liying Yang,Nan Zhang,Guiling Pan,Shougen Yin,Yongsheng Chen,Jun Wei +8 more
TL;DR: In this paper, a soluble graphene, which has a one-atom thickness and a two-dimensional structure, is blended with poly(3-hexylthiophene) (P3HT) and used as the active layer in bulk heterojunction (BHJ) polymer photovoltaic cells.
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.