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
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Controlled assembly of hybrid bulk-heterojunction solar cells by sequential deposition
TL;DR: This work presents a technique to create ordered and easily characterized hybrid nanocrystal-polymer composites by sequential deposition of tetrapod-shaped cadmium telluride (CdTe) nanocrystals and poly(3-hexlythiophene).
Journal ArticleDOI
New Alkylfuranyl-Substituted Benzo[1,2-b:4,5-b′]dithiophene-Based Donor–Acceptor Polymers for Highly Efficient Solar Cells
TL;DR: In this paper, two new alkylfuranyl-substituted conjugated donor-acceptor polymers (PBDTF-DPP and DPPF) were designed and synthesized.
Journal ArticleDOI
Controlling the morphology of nanofiber-P3HT:PCBM blends for organic bulk heterojunction solar cells
Sabine Bertho,Wibren D. Oosterbaan,Veerle Vrindts,Jan D'Haen,Thomas J. Cleij,Laurence Lutsen,Jean Manca,Jean Manca,Dirk Vanderzande,Dirk Vanderzande +9 more
TL;DR: In this paper, the authors demonstrate an easy way to control the fiber content in the casting solution, i.e. changing the solution temperature. But this method is limited to the case of P3HT nanofibers.
Journal ArticleDOI
Alternating copolymers of electron-rich arylamine and electron-deficient 2,1,3-benzothiadiazole: Synthesis, characterization and photovoltaic properties
TL;DR: In this paper, a series of alternating copolymers of electron-rich arylamine and electron-deficient 2,1,3-benzothiadiazole (BT), PV-BT, DP-BT and TP-BT were synthesized by Heck coupling reaction.
Journal ArticleDOI
A water-soluble polythiophene for organic field-effect transistors
TL;DR: In this paper, a non-ionic, water-soluble poly(thiophene) (PT) derivative, poly(3-(2-(2-methoxyethoxy)ethoxy (ethoxy), methyl thiophene), with a hydrophilic tri-ethylene glycol side group, is reported and thin films of the polymer suitable for organic field-effect transistors (OFETs) are characterized by combining analysis techniques that include UV-Vis absorption and fluorescence spectroscopy, X-ray diffraction, and atomic force microscopy.
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.