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
Morphology Control in Solution‐Processed Bulk‐Heterojunction Solar Cell Mixtures
Adam J. Moulé,Klaus Meerholz +1 more
TL;DR: In this paper, a review of several new techniques that have been developed to control the morphology in polymer/fullerene heterojunction mixtures is presented, which fall into two broad categories: the morphology can be controlled by preparing nanoparticle suspensions of one component.
Journal ArticleDOI
A Weak Donor−Strong Acceptor Strategy to Design Ideal Polymers for Organic Solar Cells
TL;DR: This work proposes to modify the donor-acceptor low band gap polymer strategy by constructing alternating copolymers incorporating a "weak donor" and a "strong acceptor", which should help maintain a low HOMO energy level and reduce the band gap via internal charge transfer (ICT).
Journal ArticleDOI
A review on triphenylamine (TPA) based organic hole transport materials (HTMs) for dye sensitized solar cells (DSSCs) and perovskite solar cells (PSCs): evolution and molecular engineering
Pooja Agarwala,Dinesh Kabra +1 more
TL;DR: In this paper, the important features of triphenylamine (TPA) based organic hole transport materials (HTMs) in accordance with their structural diversities are discussed from their evolution to recent advancements.
Journal ArticleDOI
Photocatalytic reduction of CO2 for fuel production: Possibilities and challenges
TL;DR: In this article, two alternative photocatalytic routes to transform CO2 into methanol and methane which are based either on the use of artificial of solar light to effect the CO2 reduction are presented.
Journal ArticleDOI
ZnO cathode buffer layers for inverted polymer solar cells
TL;DR: In this article, an overview of the most widely used cathode buffer layers (CBLs) constructed using pristine zinc oxide (ZnO), doped ZnO, and znO-based composites as well as the surface modified zinc oxide-based CBLs for the improvement of power conversion efficiency and long-term device stability of inverted polymer solar cells (PSCs).
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.