Linear π‐Conjugated Systems Derivatized with C<sub>60</sub>‐Fullerene as Molecular Heterojunctions for Organic Photovoltaics

Roncali, Jean

doi:10.1002/chin.200539237

Cited by 2 publications

(2 citation statements)

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“…The benefit of this strategy is the well-controlled thickness at a nanometer scale of the electrodeposited film. Double-cable polymers of poly(thiophenes) containing pendant C 60 -fullerene groups was electrogenerated [237][238][239][240]. Polycarbazole derivatives appear among the more promising polymers for OPVs.…”

Section: Resultsmentioning

confidence: 99%

Electropolymerized Films of π‐Conjugated Polymers. A Tool for Surface Functionalization: A Brief Historical Evolution and Recent Trends

Bidan

2010

Electropolymerization

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Section: Resultsmentioning

confidence: 99%

Electropolymerized Films of π‐Conjugated Polymers. A Tool for Surface Functionalization: A Brief Historical Evolution and Recent Trends

Bidan

2010

Electropolymerization

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“…2,,4 In the latter regard, semiconducting polymers substituted with chromophores and exhibiting photoinduced electron and/or energy transfer have been synthesized as promising candidates for the preparation of enhanced devices. 4 Organic white emitting diodes (WOLED) have attracted particular research interest owing to their possible use in full-color displays combined with a color filter, such as backlights for liquid-crystal displays or other lighting applications. 5 In fact, solution processed organic materials for large area devices has become to be a strategic issue in solid-state lighting (SSL) for their potential energy saving, thin, flexible WOLEDs to replace traditional incandescent white light sources.…”

Section: Introductionmentioning

confidence: 99%

White emission from a single-component single-layer solution processed OLED

et al. 2009

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We report white electroluminescence from a single component-single layer solution processed organic light emitting diodes (OLEDs). In this work, we have fabricated and characterized OLEDs based on a single polymer synthesized by incorporating a small amount of the orange-light emitting chromophore 1,8-Naphtalimide derivative as side chain to poly(fluorene-alt-phenylene) (PFP). The structure of the devices is ITO/PEDOT:PSS/Active layer/Al. The dopant unit was convalenttly attached to the side chain of polyfluorene by alkyl spacers. We have fabricated devices with different amounts of the orange chromophore (0, 0.0005, 0.005, 0.02 and 0.08 in weight) as well as a device based on a physical blend in the same proportion of 0.08 for comparison purposes. Absorption and Photoluminescence (PL) studies in thin films show no significant interaction can be observed between both moieties in the ground state, but after photoexcitation an efficient energy transfer takes place from PFP to the orange chromophore. We have observed a more efficient energy transfer in these compounds than for physical mixtures of the two chromophores due to a phase separation effect in the blend confirmed by the optical measurements and ESEM analysis, obtaining energy transfer even in diluted solutions from the intramolecular interaction in the copolymers. With this very simple device structure, white light with Commission Internationale de l`Eclairage (CIE) coordenates (0.34;0.43) is obtained for the electroluminescence (EL) emission and turn on voltage of 6 V for the device based on the copolymer with x = 0.02, together with a good match in Downloaded From: http://proceedings.spiedigitallibrary.org/ on 07/14/2015 Terms of Use: http://spiedl.org/terms the EL and PL spectra indicative that two emissions are produced by the same species, making this material very suitable for large area solution processed devices in solid state illumination.

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Linear π‐Conjugated Systems Derivatized with C₆₀‐Fullerene as Molecular Heterojunctions for Organic Photovoltaics

Abstract: For Abstract see ChemInform Abstract in Full Text.

Cited by 2 publications

References 1 publication

Electropolymerized Films of π‐Conjugated Polymers. A Tool for Surface Functionalization: A Brief Historical Evolution and Recent Trends

Electropolymerized Films of π‐Conjugated Polymers. A Tool for Surface Functionalization: A Brief Historical Evolution and Recent Trends

White emission from a single-component single-layer solution processed OLED

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Linear π‐Conjugated Systems Derivatized with C60‐Fullerene as Molecular Heterojunctions for Organic Photovoltaics

Abstract: For Abstract see ChemInform Abstract in Full Text.

Cited by 2 publications

References 1 publication

Electropolymerized Films of π‐Conjugated Polymers. A Tool for Surface Functionalization: A Brief Historical Evolution and Recent Trends

Electropolymerized Films of π‐Conjugated Polymers. A Tool for Surface Functionalization: A Brief Historical Evolution and Recent Trends

White emission from a single-component single-layer solution processed OLED

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Linear π‐Conjugated Systems Derivatized with C₆₀‐Fullerene as Molecular Heterojunctions for Organic Photovoltaics