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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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Surface-Enhanced Raman Study of the Interaction of PEDOT:PSS with Plasmonically Active Nanoparticles
TL;DR: Raman and surface-enhanced Raman spectra have been obtained for poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS), a polymer blend widely used as a semitransparent, hole-transporting electrode coating in organic polymer-based photovoltaic cells as discussed by the authors.
Journal ArticleDOI
Self-Powered Tactile Sensor Array Systems Based on the Triboelectric Effect
Juan Tao,Rongrong Bao,Rongrong Bao,Xiandi Wang,Yiyao Peng,Jing Li,Sheng Fu,Caofeng Pan,Zhong Lin Wang +8 more
TL;DR: In this paper, an overview of the development in self-powered tactile sensor array system based on the triboelectric effect is systematically presented, where the combination of multi-functionalization and high performance of tactile sensors aimed at achieving highly comprehensive performance is presented.
Journal ArticleDOI
Nonfullerene Acceptors with Enhanced Solubility and Ordered Packing for High-Efficiency Polymer Solar Cells
Yahui Liu,Miao Li,Xiaobo Zhou,Qing-Qing Jia,Shiyu Feng,Pengcheng Jiang,Xinjun Xu,Wei Ma,Hai-Bei Li,Zhishan Bo +9 more
TL;DR: In this paper, a molecular design strategy is proposed to obtain additive- and annealing-free PSCs, which results in excellent solubility in solutions, ordered molecular packing in films, slightly elevated energy levels, and a higher film absorption coefficient.
Journal ArticleDOI
Molecular engineering of central fused-ring cores of non-fullerene acceptors for high-efficiency organic solar cells
TL;DR: In this paper, the authors summarize the recent advancement in molecular engineering of central fused-ring cores of FREAs for high-efficiency OSCs and discuss the impact of such core engineering on the light absorption, energy levels, electron mobility, and photovoltaic performance of the resultant FREAs.
Journal ArticleDOI
A Selenophene Analogue of PCDTBT: Selective Fine-Tuning of LUMO to Lower of the Bandgap for Efficient Polymer Solar Cells
TL;DR: In this paper, a selenophene analogue of PCDTBT was synthesized, which alternately flanks with a 2,7-carbazole unit, and the intrinsic properties of PCDSeBT are not only characterized by UV-vis absorption, cyclic voltammetry (CV), and organic field-effect transistors (OFETs) but also the surface morphology, mobilities of space charge-limited current (SCLC) model, and polymer solar cells (PSCs) in its bulk-heterojunction (BHJ) active layer with
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.