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
Synthesis and photovoltaic properties of a solution-processable organic molecule containing triphenylamine and DCM moieties
Chang He,Qingguo He,Xiaodi Yang,Guanglong Wu,Chunhe Yang,Fenglian Bai,Zhigang Shuai,Lingxuan Wang,Yongfang Li +8 more
TL;DR: A solution processible organic conjugated molecule 2-[2,6-bis-(2-{4-[2-(diphenylaminophenyl)vinyl]phenyl}vinyl)pyran-4-ylidene]malononitrile (TPA−DCM−TPA) was designed and synthesized for application in organic solar cells (OSCs) as mentioned in this paper.
Journal ArticleDOI
Optimization of energy levels by molecular design: evaluation of bis-diketopyrrolopyrrole molecular donor materials for bulk heterojunction solar cells
Bright Walker,Bright Walker,Jianhua Liu,Chunki Kim,Gregory C. Welch,Jin Keun Park,Jason Lin,Peter Zalar,Christopher M. Proctor,Jung Hwa Seo,Guillermo C. Bazan,Thuc-Quyen Nguyen +11 more
TL;DR: In this paper, a series of solution-processable, small-molecule, donor materials based on an architecture consisting of two diketopyrrolopyrrole (DPP) cores with different aromatic π-bridges between the DPP units and different end-capping groups was reported.
Journal ArticleDOI
Quantum dots sensitized graphene: In situ growth and application in photoelectrochemical cells
TL;DR: In this paper, a photoelectrochemical cell (PEC) based on quantum dots (QDs) sensitized graphene for light harvesting and energy conversion was described, which was prepared by in situ growth of QDs on noncovalently functionalized graphene.
Journal ArticleDOI
Slow Bloch modes for enhancing the absorption of light in thin films for photovoltaic cells
David Duché,Ludovic Escoubas,Jean-Jacques Simon,Philippe Torchio,Wilfried Vervisch,Francois Flory +5 more
TL;DR: In this article, a poly-3-hexylthiophene/[6,6]-phenyl-C61-butyric acid methyl ester (P3HT/PCBM) thin film was periodically nanostructured in order to increase its absorption.
Journal ArticleDOI
High-Performance Field-Effect Transistors Based on Polystyrene-b-Poly(3-hexylthiophene) Diblock Copolymers
Xiang Yu,Kai Xiao,Jihua Chen,Nickolay V. Lavrik,Kunlun Hong,Bobby G. Sumpter,David B. Geohegan +6 more
TL;DR: This work demonstrates that the high degree of molecular order induced by block copolymer phase separation can improve the transport properties and stability of conjugating polymers, which are critical for high-performance OFETs and other organic electronics.
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.