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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Electrodeposited, "textured" poly(3-hexyl-thiophene) (e-P3HT) films for photovoltaic applications
TL;DR: In this article, a cararpet layer of poly(3-hexylthiophene) (e-P3HT) donor layers was first deposited using dual step chronoamperometry to create a smooth, pinhole-free film on the ITO electrode.
Journal ArticleDOI
Efficient Polymer Solar Cells Based on Poly(3‐hexylthiophene):Indene‐C70 Bisadduct with a MoO3 Buffer Layer
Xi Fan,Xi Fan,Chaohua Cui,Guojia Fang,Jinzhao Wang,Songzhan Li,Fei Cheng,Hao Long,Yongfang Li +8 more
TL;DR: In this article, the photovoltaic performance of poly(3-hexylthiophene) (P3HT) with IC70BA was optimized by controlling spin-coating time and thermal annealing, and the effect of spincoating times on absorption spectra, X-ray diffraction patterns, and transmission electron microscopy images of P3HT/IC70BA blend films were systematically investigated.
Journal ArticleDOI
Hybrid solar cells based on poly(3-hexylthiophene) and electrospun TiO2 nanofibers with effective interface modification
TL;DR: In this article, the performance of the hybrid solar cells is optimized by modifying the surface of TiO2 nanofibers with ruthenium dye (N719) and 3-phenylpropionic acid, which results in the average power conversion efficiency of about 1.1% under AM 1.5G simulated illumination.
Journal ArticleDOI
Physical Origin of the Impact of Different Nanocrystal Surface Modifications on the Performance of CdSe/P3HT Hybrid Solar Cells
N. A. Radychev,Irina Lokteva,Florian Witt,Joanna Kolny-Olesiak,Holger Borchert,Jürgen Parisi +5 more
TL;DR: Alkylamines were recently found to be suitable ligands for CdSe quantum dots with respect to applications in polymer/nanoparticle solar cells as discussed by the authors, however, the physical origin of the superior performan...
Journal ArticleDOI
Photovoltaic properties and exciplex emission of polyphenylenevinylene-based blend solar cells
TL;DR: In this paper, the photoluminescence emission and photovoltaic properties of blends of polyphenylenevinylene (PPV)-based electron donating and accepting polymers were studied.
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.