Formation of Nanopatterned Polymer Blends in Photovoltaic Devices

He, Ximin; Gao, Feng; Tu, Guoli; Hasko, D. G.; Hüttner, Sven; Steiner, Ullrich; Greenham, Neil C.; Friend, Richard H.; Huck, Wilhelm T. S.

doi:10.1021/nl904098m

Cited by 247 publications

(185 citation statements)

References 30 publications

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“…154 A double nanoimprinting process was developed by Huck and Friend and coworkers. 155,156 Here, a prepatterned Si mold was used to imprint the first layer of conjugated polymers (usually P3HT) and then the resultant layer was used as mold to imprint the second layer to form nano-pattern (Fig. 23).…”

Section: Nanofabricated Solar Cellsmentioning

confidence: 99%

On the morphology of polymer‐based photovoltaics

Liu

Jung

et al. 2012

J Polym Sci B Polym Phys

308

248

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We review the morphologies of polymer-based solar cells and the parameters that govern the evolution of the morphologies and describe different approaches to achieve the optimum morphology for a BHJ OPV. While there are some distinct differences, there are also some commonalities. It is evident that morphology and the control of the morphology are important for device performance and, by controlling the thermodynamics, in particular, the interactions of the components, and by controlling kinetic parameters, like the rate of solvent evaporation, crystallization and phase separation, optimized morphologies for a given system can be achieved. While much research has focused on P3HT, it is evident that a clearer understanding of the morphology and the evolution of the morphology in low bad gap polymer systems will increase the efficiency further. While current OPVs are on the verge of breaking the 10% barrier, manipulating and controlling the morphology will still be key for device optimization and, equally important, for the fabrication of these devices in an industrial setting.

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Section: Nanofabricated Solar Cellsmentioning

confidence: 99%

On the morphology of polymer‐based photovoltaics

Liu

Jung

et al. 2012

J Polym Sci B Polym Phys

308

248

View full text Add to dashboard Cite

show abstract

“…Several groups have used nanoimprint lithography to produce the polymer nanostructures by using a Si mold, leading to an increase of fabrication cost [84,85]. An anodic aluminum oxide (AAO) membrane is another widely used templates for the fabrication of polymer-based nanostructures, including nanotubes, nanorods, mesoporous nanostructures and vesicles [86][87][88][89].…”

Section: Opv Structure Designmentioning

confidence: 99%

Towards High Performance Organic Photovoltaic Cells: A Review of Recent Development in Organic Photovoltaics

2014

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Organic photovoltaic cells (OPVs) have been a hot topic for research during the last decade due to their promising application in relieving energy pressure and environmental problems caused by the increasing combustion of fossil fuels. Much effort has been made toward understanding the photovoltaic mechanism, including evolving chemical structural motifs and designing device structures, leading to a remarkable enhancement of the power conversion efficiency of OPVs from 3% to over 15%. In this brief review, the advanced progress and the state-of-the-art performance of OPVs in very recent years are summarized. Based on several of the latest developed approaches to accurately detect the separation of electron-hole pairs in the femtosecond regime, the theoretical interpretation to exploit the comprehensive mechanistic picture of energy harvesting and charge carrier generation are discussed, especially for OPVs with bulk and multiple heterojunctions. Subsequently, the novel structural designs of the device architecture of OPVs embracing external geometry modification and intrinsic structure decoration are presented. Additionally, some approaches to further increase the efficiency of OPVs are described, including thermotics and dynamics modification methods. Finally, this review highlights the challenges and prospects with the aim of providing a better understanding towards highly efficient OPVs.

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“…When processed in films, the donor and the acceptor blocks form separate domains, leading to structures approaching the idealized vision. Structure-based enhancement of OPV properties has been recently demonstrated [28], although the structure was formed using nanoimprint lithography, in which case the area of the PV cell is limited by the size of the stamp and achieving a characteristic length scale of the domains comparable to the exciton diffusion distance remains a challenge. Self-assembled structures using BCPs may be more easily fabricated, thereby enabling unprecedented studies of relationships between nanostructure and photophysical properties while also being potentially amenable to roll-to-roll, truly large-scale processing.…”

mentioning

confidence: 99%

Block Copolymer Nanostructures for Technology

2010

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Nanostructures generated from block copolymer self-assembly enable a variety of potential technological applications. In this article we review recent work and the current status of two major emerging applications of block copolymer (BCP) nanostructures: lithography for microelectronics and photovoltaics. We review the progress in BCP lithography in relation to the requirements of the semiconductor technology roadmap. For photovoltaic applications, we review the current status of the quest to generate ideal nanostructures using BCPs and directions for future research.

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Formation of Nanopatterned Polymer Blends in Photovoltaic Devices

Cited by 247 publications

References 30 publications

On the morphology of polymer‐based photovoltaics

On the morphology of polymer‐based photovoltaics

Towards High Performance Organic Photovoltaic Cells: A Review of Recent Development in Organic Photovoltaics

Block Copolymer Nanostructures for Technology

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