Journal ArticleDOI
Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology
Reads0
Chats0
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
More filters
Journal ArticleDOI
Photoinduced charge transfer and efficient solar energy conversion in a blend of a red polyfluorene copolymer with CdSe nanoparticles.
TL;DR: Quasi-steady-state photoinduced absorption measurements identified a long-lived charged species that formed after photoexcitation at room temperature that gave solar power conversion efficiency of 2.4% under Air Mass 1.5 Global (AM1.5G) conditions.
Journal ArticleDOI
Influence of Molecular Weight Distribution on the Gelation of P3HT and Its Impact on the Photovoltaic Performance
Markus Koppe,Christoph J. Brabec,Sabrina Heiml,Alois Schausberger,Warren Duffy,Martin Heeney,Iain McCulloch +6 more
TL;DR: In this article, the authors investigated the mechanism and dynamics of gelation in P3HT solutions and showed that the correlation between the gelation dynamics and the molecular weight distribution is discussed in more detail for a nonhazardous, printing friendly solvent system.
Journal ArticleDOI
Ex‐ante environmental and economic evaluation of polymer photovoltaics
TL;DR: In this paper, the authors performed an environmental and economic assessment of polymer-based thin film modules with a glass substrate and with a flexible substrate and compared their results with literature data for multicrystalline (mc-) silicon photovoltaics and other types of PV.
Journal ArticleDOI
Balancing Light Absorptivity and Carrier Conductivity of Graphene Quantum Dots for High-Efficiency Bulk Heterojunction Solar Cells
Jung Kyu Kim,Myung Jin Park,Sang Jin Kim,Dong Hwan Wang,Sung Pyo Cho,Sukang Bae,Jong Hyeok Park,Byung Hee Hong +7 more
TL;DR: The results indicate that GQDs play an important role in increasing optical absorptivity and charge carrier extraction of the BHJ solar cells and their application to bulk heterojunction (BHJ) solar cells with enhanced power conversion efficiency (PCE).
Journal ArticleDOI
Transient Absorption Studies of Bimolecular Recombination Dynamics in Polythiophene/Fullerene Blend Films
TL;DR: In this paper, transient spectra for poly(3hexylthiophene):[6,6]-phenyl C61-butyric acid methyl ester (P3HT:PCBM) films and analogues of these components were analyzed as a function of blend composition, postdeposition thermal annealing, and excitation density.
References
More filters
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.