Bicolor Pixels from a Single Active Molecular Material by Surface-Tension-Driven Deposition

Authors

  • I. Viola,

    1. National Nanotechnology Laboratory (NNL) of INFM-CNR, Distretto tecnologico ISUFI, via Arnesano, 73100 Lecce (Italy)
    2. Dipartimento di Ingegneria, Università degli Studi di Lecce, via Monteroni, 73100 Lecce (Italy)
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  • F. Della Sala,

    1. National Nanotechnology Laboratory (NNL) of INFM-CNR, Distretto tecnologico ISUFI, via Arnesano, 73100 Lecce (Italy)
    2. Dipartimento di Ingegneria, Università degli Studi di Lecce, via Monteroni, 73100 Lecce (Italy)
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  • M. Piacenza,

    1. National Nanotechnology Laboratory (NNL) of INFM-CNR, Distretto tecnologico ISUFI, via Arnesano, 73100 Lecce (Italy)
    2. Dipartimento di Ingegneria, Università degli Studi di Lecce, via Monteroni, 73100 Lecce (Italy)
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  • L. Favaretto,

    1. Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Area di Ricerca CNR, via Gobetti, 101, 40129 Bologna (Italy)
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  • M. Gazzano,

    1. Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Area di Ricerca CNR, via Gobetti, 101, 40129 Bologna (Italy)
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  • M. Anni,

    1. National Nanotechnology Laboratory (NNL) of INFM-CNR, Distretto tecnologico ISUFI, via Arnesano, 73100 Lecce (Italy)
    2. Dipartimento di Ingegneria, Università degli Studi di Lecce, via Monteroni, 73100 Lecce (Italy)
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  • G. Barbarella,

    1. Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Area di Ricerca CNR, via Gobetti, 101, 40129 Bologna (Italy)
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  • R. Cingolani,

    1. National Nanotechnology Laboratory (NNL) of INFM-CNR, Distretto tecnologico ISUFI, via Arnesano, 73100 Lecce (Italy)
    2. Dipartimento di Ingegneria, Università degli Studi di Lecce, via Monteroni, 73100 Lecce (Italy)
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  • G. Gigli

    1. National Nanotechnology Laboratory (NNL) of INFM-CNR, Distretto tecnologico ISUFI, via Arnesano, 73100 Lecce (Italy)
    2. Dipartimento di Ingegneria, Università degli Studi di Lecce, via Monteroni, 73100 Lecce (Italy)
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  • The authors gratefully acknowledge P. Pompa, S. Lattante, L. Martiradonna, and A. Rizzo (CNR-NNL Lecce, Italy) for PL measurements and useful discussions. This work has been partially funded by MIUR (FIRB RBNE03S7XZ_005 “SYNERGY”). Supporting Information is available online from Wiley InterScience or from the author.

Abstract

original image

The fabrication of a green- and red-emitting pixel structure (see figure, scale bar 10 μm) by the single-step, surface-tension-driven assembly of a single luminescent thiophene-based molecular material is reported. The solid-state organization of the selected thiophene-based oligomer is controlled by exploiting the molecular structural arrangement, induced during a dewetting process and facilitated by the great conformational flexibility of the oligomer, typical of several substituted oligothiophenes.

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