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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Enhanced charge separation in organic photovoltaic films doped with ferroelectric dipoles
Kanwar S. Nalwa,John A. Carr,Rakesh C. Mahadevapuram,Hari K. Kodali,Sayantan Bose,Yuqing Chen,Jacob W. Petrich,Baskar Ganapathysubramanian,Sumit Chaudhary +8 more
TL;DR: In this article, a ferroelectric polymer is added to the OPV active layer to enhance the electric field, which in turn leads to more efficient dissociation of singlet-excitons and charge-transfer excitons.
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Solution Processable Fluorenyl Hexa-peri-hexabenzocoronenes in Organic Field-Effect Transistors and Solar Cells
Wallace W. H. Wong,Th. B. Singh,Doojin Vak,Wojciech Pisula,Chao Yan,Xinliang Feng,Evan L. Williams,K. L. Chan,Q. H. Mao,David J. Jones,Chang-Qi Ma,Klaus Müllen,Peter Bäuerle,Andrew B. Holmes +13 more
TL;DR: In this article, the authors investigated the properties and device performance of three structural variations of the fluorenyl hexa-perihexabenzocoronene (FHBC) material, highlighting the importance of molecular organization to device performance.
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Effects of C70 derivative in low band gap polymer photovoltaic devices: Spectral complementation and morphology optimization
TL;DR: In this article, a low band gap copolymer poly(9,9-dioctylfluorene)-2,7-diyl-alt poly(C70-PCBM) with 2.4% power conversion efficiency under air mass 1.5G, 100mW∕cm2 illumination.
Journal ArticleDOI
Highly Efficient and Thermally Stable Polymer Solar Cells with Dihydronaphthyl‐Based [70]Fullerene Bisadduct Derivative as the Acceptor
Xiangyue Meng,Wenqing Zhang,Zhan'ao Tan,Yongfang Li,Yihan Ma,Taishan Wang,Li Jiang,Chunying Shu,Chunru Wang +8 more
TL;DR: In this paper, a new soluble C 70 derivative, dihydronaphthyl-based C 70 bisadduct (NC 70 BA), is synthesized and explored as acceptor in PSCs.
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Enhanced solar-cell efficiency in bulk-heterojunction polymer systems obtained by nanoimprinting with commercially available AAO membrane filters.
Jae Hyun Lee,Dae Woo Kim,Hong Jang,Jong Kil Choi,Jianxin Geng,Jae Wook Jung,Sung Cheol Yoon,Hannes Jung +7 more
TL;DR: The power-conversion efficiency of an organic photovoltaic cell composed of poly(3-hexylthiophene) and (6,6)-phenyl-C61-butyric acid methyl ester is enhanced significantly by controlling the surface morphology of the photoactive layer.
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.