View Item 
    •   Bozen-Bolzano Institutional Archive (BIA)
    • Free University of Bozen-Bolzano (UNIBZ)
    • Publications of the Faculty of Science and Technology
    • Articles - Science and Technology
    • View Item
    •   Bozen-Bolzano Institutional Archive (BIA)
    • Free University of Bozen-Bolzano (UNIBZ)
    • Publications of the Faculty of Science and Technology
    • Articles - Science and Technology
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Successive spray deposition of P3HT/PCBM organic photoactive layers: Material composition and device characteristics

    Date
    2012
    Author
    Abdellah A
    Virdi K
    Meier R
    Döblinger M
    Müller-Buschbaum P
    Scheu C
    Lugli P
    Scarpa G
    Metadata
    Show full item record
    Subject
     Organic photodiodes; Spray deposition; Composition control; Solution-processing methods 
    Abstract
    Controlling the active layer composition in organic electronic devices represents one of the major challenges in their fabrication. In particular, the composition of mixed donor/acceptor active layers for photosensitive device applications is known to strongly influence device performance. Here, an alternative approach for the preparation of organic heterojunction photoactive layers by successive spray deposition of the donor material, poly(3-hexylthiophene) (P3HT), and acceptor material, [6,6]-phenyl C61-butyric acid methyl ester (PCBM), is reported. Optical absorption spectra, X-ray reflectivity, and cross-sectional transmission electron microscopy investigations are used to indicate the penetration of PCBM into a previously deposited P3HT layer and the spontaneous formation of a bulk heterojunction (BHJ) within the active layer, which provides the large interfacial area needed for efficient exciton dissociation. It is shown that organic photodiodes composed of photoactive layers prepared using this fabrication method exhibit a performance comparable to conventional BHJ devices in which the active layer is rigorously blended in advance. Moreover, separate handling of the individual materials and their deposition from distinct solutions enables an enhanced control of the active layer composition and hence increases the ability of tuning device characteristics. Successive spray deposition is introduced as an alternative approach for the fabrication of organic photoactive layers. Photodiodes prepared using this fabrication method exhibit a performance comparable to conventional bulk heterojunction devices in which the active layer is rigorously blended in advance. Separate handling of the individual materials and their deposition from distinct solutions enables an enhanced control of the active layer composition. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    URI
    http://dx.doi.org/10.1002/adfm.201200548
    http://onlinelibrary.wiley.com/doi/10.1002/adfm.201200548/abstract;jsessionid=9F04F732F1B4F9455FD1A7EDA8AE20B5.f03t03
    http://hdl.handle.net/10863/2547
    Collections
    • Articles - Science and Technology

    Related items

    Showing items related by title, author, creator and subject.

    • Towards 3D-printed organic electronics: Planarization and spray-deposition of functional layers onto 3D-printed objects 

      Falco A; Petrelli M; Bezzeccheri E; Abdelhalim A; Lugli P (Elsevier B.V., 2016)
      The last years have seen a surge in the interest for “smart objects” obtained with the integration of electronics and custom designed structures. One of the possible approaches for the fabrication of such devices is 3D ...
    • Fully-Sprayed and Flexible Organic Photodiodes with Transparent Carbon Nanotube Electrodes 

      Falco A; Cina L; Scarpa G; Lugli P; Abdellah A (AMER CHEMICAL SOC, 2014)
      In this study, we demonstrate the feasibility of TCO-free, fully sprayed organic photodiodes on flexible polyethylene terephthalate (PET) substrates. Transparent conducting films of single-wall carbon nanotubes are spray ...
    • Spray deposition of Polyethylenimine thin films for the fabrication of fully-sprayed organic photodiodes 

      Falco A; Zaidi A; Lugli P; Abdellah A (Elsevier, 2015)
      In the last years, a big effort has been put into the investigation of the scalability of deposition processes for organic optoelectronics to achieve large-scale and cost-effective fabrication of functional devices. One ...

    Browse

    All of BIACommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Admin Login
    Privacy | Contact Us | About
    © UniBz