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Elementary processes in organic photovoltaics


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Elementary Processes in Organic Photovoltaics

This volume presents the results of a multi-year research programme funded by the Deutsche Forschungsgemeinschaft (German Research Council), which explains how organic solar cells work. In this new promising photovoltaic technology, carbon-based m...

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The role of isomeric alkyl chains of polymer donors on

The power conversion efficiencies (PCE) of organic solar cells (OSCs) have been enhanced to > 19%, due to the creative developments of wide-bandgap polymer donors and non-fullerene small-molecule acceptors (NFAs), and device structures [1,2,3,4,5].The photovoltaic performances of OSCs are determined by exciton dissociation (ED) and free charge

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Donor–Acceptor Dyes for Organic Photovoltaics | SpringerLink

Elementary Processes in Organic Photovoltaics. Chapter. Donor–Acceptor Dyes for Organic Photovoltaics. Chapter; First Online: 21 December 2016; pp 193–214; Cite this chapter; Download book PDF. Download book EPUB. Although organic solar cells (OSCs) are a relatively novel technology, they hold the promise of a substantial price

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SPP 1355: Elementary Processes of Organic Photovoltaics

But low power efficiency (about 5 percent research cell efficiency) and open questions like long-term stability of organic solar cells are still limiting a broad application. In order to fulfil the complex requirements of broad application, such fundamental questions and the elementary processes of organic photovoltaic need to be investigated.

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Organic Photovoltaics: Concepts and Realization | SpringerLink

Organic Photovoltaics also analyzes in detail the charge-transfer processes in the bulk-heterojunction devices corresponding to the relevant mechanism of carrier generation. Emphasized throughout is the concept of interpenetrating polymer-fullerene networks, due to their high potential for improving power efficiency.

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Ultrafast Elementary Photochemical Processes of Organic

Ultrafast photochemical reactions in liquids occur on similar or shorter time scales compared to the equilibration of the optically populated excited state. This equilibration involves the relaxation of intramolecular and/or solvent modes. As a consequence, the reaction dynamics are no longer exponential, cannot be quantified by rate constants, and may depend on the

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Quantum Dynamics of Elementary Processes in Organic

Quantum Dynamics of Elementary Processes in Organic Photovoltaics I. Burghardt,† R. Binder,† J. Wahl,† H. Tamura+ †Institute for Physical and Theoretical Chemistry, Goethe University Frankfurt, Germany +Advanced Institute for Materials Research, University of Tohoku, Sendai, Japan Laboratory for Chemistry of Novel Materials, Universit e de Mons

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Elementary processes and limiting factors in hybrid polymer

Despite these advantages, efficiencies obtained with hybrid polymer / nanoparticle solar cells are still below those of state-of-the-art polymer / fullerene solar cells. This Perspective summarises the achievements in the field of hybrid solar cells, compares the knowledge on elementary processes in hybrid and organic systems and points out

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Elementary Processes in Organic Photovoltaics (Advances in

From the contents: Polymeric solar cells: Molecular orientation, structure, and optoelectronic performance.- An integrated approach towards highly efficient bulk-heterojunction solar cells based on dendritic oligothiophenes.- Organic solar cells based on oligothiophene derivatives.- Charge separation at nanostructured molecular donoracceptor interfaces.- p-B-n organic

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Organic Photovoltaics: Relating Chemical Structure, Local

organic solar cells (OSCs) have come from largely trial-and-error-based optimi-zations of the morphology of the active layers. Further improvements, however, fullerene BHJ architecture with the basic electronic processes described in the legend [3] (the chemical structures of the donor and acceptor materials mentioned in this review are

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Organic Photovoltaics

Organic photovoltaics (OPV) describes a group of technologies wherein the active layer of a solar cell is composed of hydrocarbon-based organic materials [1–3].OPV occupies a special niche among solar energy technologies in that it could potentially satisfy the growing energy needs of the world with a product that is sustainable, elementally abundant, and

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Photovoltaics Elementary Processes in Organic

Organic and Hybrid Solar Cells Based on. Well-Defined Organic Semiconductors and. Morphologies. Amaresh Mishra, Volker Schmidt, René A. J. Janssen, Peter Bäuerle Pages 25-49. Dicyanovinylene-Substituted. Oligothiophenes for Organic Solar Cells. Christian Koerner, Hannah Ziehlke, Roland Fitzner, Moritz Riede, Amaresh Mishra, Peter Bäuerle et

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Physical insights into non-fullerene organic photovoltaics

Non-fullerene acceptors have boosted the development of organic photovoltaics. This Review highlights the photophysics and device physics of non-fullerene organic photovoltaics, including exciton

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Dicyanovinylene-Substituted Oligothiophenes for Organic Solar Cells

In the first very promising solar cell application, a butyl-substituted quinquethiophene was deployed in SMOSC devices, yielding a PCE of 3.4 %[].Meanwhile, the extensive exploration of this material class in synthesis and characterization led to excellent certified PCE values of 8.3 % in single-junction and 9.7 % in multijunction cells using a

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Elementary Processes in Organic Photovoltaics

The investigation of organic solar cells is an interdisciplinary topic, covering physics, chemistry and engineering. The different chapters address topics ranging from the synthesis of new organic materials, to the characterization of the elementary processes such as exciton transport and separation, and the principles of highly efficient

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Solution-Processed Organic Photovoltaics | SpringerLink

Only limited data are available on the stability of organic solar cells [76, 77]. Hauch et al. reported on the stability of flexible organic solar cells, which were packaged with a low-cost and rather high water vapour transmission rate (WVTR) food-packaging barrier before exposing to 1 sun illumination at a temperature of 65 °C.

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Elementary Processes in Organic Photovoltaics / edited by Karl

The different chapters address topics ranging from the synthesis of new organic materials, to the characterization of the elementary processes such as exciton transport and separation, and

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Quantum Dynamics of Elementary Processes in Organic

elementary steps: creation of electron-hole pairs (excitons) exciton dissociation at donor-acceptor junctions (here, PCBM-P3HT)1 capture of charge carriers at electrodes potentially competing

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Organic Photovoltaics: Relating Chemical Structure, Local Morphology

For example: in ITIC neat films, calculations relevant to the electron-transport process confirm that face-on configurations lead to larger couplings, which results in higher electron mobility Organic solar cells based on non-fullerene small-molecule acceptors: impact of substituent position. Matter, 2 (2020), pp. 119-135.

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Distributions and evolution of trap states in non-fullerene organic

The photovoltaic performance of non-fullerene organic solar cells (OSCs) is essentially determined by the presence of charge traps. However, their exact distributions in

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Elementary steps in electrical doping of organic semiconductors

Molecular doping is routinely used in organic semiconductor devices nowadays, but the physics at play remains unclarified. Tietze et al. describe it as a two-step process and show it costs little

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Optical and electrical losses in semitransparent organic photovoltaics

Semitransparent organic photovoltaics (STOPVs) have attracted broad attention from both academia and industry owing to their potential for low-cost, sustainable, and integrated energy harvesting. This work quantitatively analyzes the current loss and charge recombination processes using capacitance spectroscopy. The surface-trap-assisted recombination is found

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Advances in organic solar cells: Materials, progress, challenges

The active layer of solar cells contains the donor organic material and the acceptor organic material, used in a layer-by-layer fashion in bilayer heterojunction and are combined together in bulk heterojunction solar cells [30]. Light crosses from the transparent electrode followed by the hole transport layer to incorporate into the active layer.

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Elementary Processes in Organic Photovoltaics | SpringerLink

The different chapters address topics ranging from the synthesis of new organic materials, to the characterization of the elementary processes such as exciton transport and separation, and the principles of highly efficient device design.

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Organic Photovoltaic Devices

The parameters in the equation above are exhibited in Fig. 5.4.The value of PCE is calculated from three parameters: short-circuit current density (J SC), open-circuit voltage (V OC), and fill factor (FF).P m stands for the maximum power point, and P in is the incident light power. J SC is the current density of devices when there is 0 V of applied bias on the two electrodes.

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Elementary Processes in Organic Photovoltaics (Advances in Polymer

Elementary Processes in Organic Photovoltaics (Advances in Polymer Science, 272) [Leo, Karl] on Amazon . *FREE* shipping on qualifying offers. Elementary Processes in Organic Photovoltaics (Advances in Polymer Science, 272) The investigation of organic solar cells is an interdisciplinary topic, covering physics, chemistry and engineering

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Elementary Processes in Organic Photovoltaics [electronic resource]

Elementary Processes in Organic Photovoltaics [electronic resource] Responsibility edited by Karl Leo. Digital text file; PDF Publication Cham : Springer International Publishing : Imprint: Springer, 2017. Physical description IX, 421 p. 244 ill., 184 illus. in color : online resource.

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Optical and electrical losses in semitransparent

Semitransparent organic photovoltaics (STOPVs) have attracted broad attention from both academia and industry owing to their potential for low-cost, sustainable, and integrated energy harvesting. This work quantitatively

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Elementary Processes in Organic Photovoltaics

Elementary Processes in Organic Photovoltaics . The investigation of organic solar cells is an interdisciplinary topic, covering physics, chemistry and engineering. The different chapters address topics ranging from the synthesis of new organic materials, to the characterization of the elementary processes such as exciton transport and

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About Elementary processes in organic photovoltaics

About Elementary processes in organic photovoltaics

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