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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Modification of PCBM Crystallization via Incorporation of C60 in Polymer/Fullerene Solar Cells
Jeffrey J. Richards,Andrew H. Rice,Rainie D. Nelson,Felix Sunjoo Kim,Samson A. Jenekhe,Christine K. Luscombe,Danilo C. Pozzo +6 more
TL;DR: In this paper, the morphological effects of the incorporation of C60 into blended thin-films of poly(3-hexylthiophene) and [6,6]-phenyl C61 butyric acid methyl ester (PCBM) are investigated.
Journal ArticleDOI
A Kelvin Probe Force Microscopy Study of the Photogeneration of Surface Charges in All‐Thiophene Photovoltaic Blends
Vincenzo Palermo,Giovanni Ridolfi,Anna Maria Talarico,Laura Favaretto,Giovanna Barbarella,Nadia Camaioni,Paolo Samorì +6 more
TL;DR: In this article, a light-induced generation of charges into an electron acceptor-donor phase-segregated blend is studied, which is made of highly ordered nanoscopic crystals of 3"-methyl-4"-hexyl-2,2':5',2":5', 2":5",2"':5"',2"''-quinquethiophene-1",1"-dioxide embedded into a regioregular poly(3-hexylthiophene) matrix, respectively.
Journal ArticleDOI
Near-infrared response photovoltaic device based on novel narrow band gap small molecule and PCBM fabricated by solution processing
TL;DR: In this article, a novel diphenylaminofluorenyl-capped thiadiazoloquinoxaline (6,7-dimethyl-4,9-di{5]-9, 9-bis(octyl)-7-diphenylamlinofluorene-2-yl]-4-hexylthien-2yl}[1,2,5]-thiadia-olo[3,4- g ]quinoxalin (DPAFL-TDOX-DPA FL which is further abbrevi
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Regiosymmetric poly(dialkylphenylenedioxythiophene)s: electron-rich, stackable pi-conjugated nanoribbons.
Journal ArticleDOI
Controlling Blend Film Morphology by Varying Alkyl Side Chain in Highly Coplanar Donor-Acceptor Copolymers for Photovoltaic Application
TL;DR: A series of varied length alkyl substituted donor-acceptor conjugated copolymers with benzo[1,2-b:4,5-b′]dithiophene (BDT) as donor and thiophene rings attached to both sides of the benzothiadiazole (TBT) moieties as acceptors were designed and synthesized as mentioned in this paper.
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.