Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/27911
Title: | A PCPDTTPD-based narrow bandgap conjugated polyelectrolyte for organic solar cells | Authors: | BREBELS, Jeroen KESTERS, Jurgen Defour, Maxime PIROTTE, Geert Van Mele, Bruno MANCA, Jean LUTSEN, Laurence VANDERZANDE, Dirk MAES, Wouter |
Issue Date: | 2018 | Publisher: | ELSEVIER SCI LTD | Source: | POLYMER, 137, p. 303-311 | Abstract: | Extensive research on organic photovoltaics has granted impressive power conversion efficiencies, nowadays exceeding 13% for state-of-the-art photoactive material combinations. Nevertheless, different strategies can be adopted to further enhance the efficiency and the competitiveness with alternative photovoltaic technologies. Conjugated polyelectrolytes have been applied as anode or cathode interlayers to optimize ohmic contacts and lower the contact resistance, thereby improving the ultimate device efficiency. Here, we present an interlayer material belonging to the emerging class of narrow bandgap conjugated polyelectrolytes, based on an imidazolium functionalized 4H-cyclopenta[2,1-b: 3,4-b'] dithiophene (CPDT) as the electron-rich polymer building block and 4H-thieno[3,4-c] pyrrole-4,6(5H)-dione (TPD) as the electron-deficient subunit. The ionic polymer is applied as cathode interlayer for PBDTTPD:[70]PCBM (poly[bis(2'-ethylhexyloxy) benzo[1,2-b: 4,5-b'] dithiophene-alt-N-octylthieno[3,4-c] pyrrole-4,6-dione]:[6,6]-phenyl-C-71-butyric acid methyl ester) bulk heterojunction polymer solar cells, improving the overall device performance from 6.9 to 7.8%. (C) 2018 Elsevier Ltd. All rights reserved. | Notes: | [Brebels, Jeroen; Kesters, Jurgen; Pirotte, Geert; Vanderzande, Dirk; Maes, Wouter] UHasselt Hasselt Univ, Inst Mat Res IMO IMOMEC, DSOS, Agoralaan, B-3590 Diepenbeek, Belgium. [Defour, Maxime; Van Mele, Bruno] VUB, Phys Chem & Polymer Sci FYSC, Pl Laan 2, B-1050 Brussels, Belgium. [Manca, Jean] UHasselt Hasselt Univ, X LAB, Agoralaan, B-3590 Diepenbeek, Belgium. [Lutsen, Laurence; Vanderzande, Dirk; Maes, Wouter] IMEC, Associated Lab IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. | Keywords: | Narrow bandgap conjugated; polyelectrolytes; Cathode interlayers; Organic solar cells;Narrow bandgap conjugated polyelectrolytes; Cathode interlayers; Organic solar cells | Document URI: | http://hdl.handle.net/1942/27911 | ISSN: | 0032-3861 | e-ISSN: | 1873-2291 | DOI: | 10.1016/j.polymer.2018.01.027 | ISI #: | 000425603800032 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2019 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Revised article Brebels et al Polymer 2018.pdf | Peer-reviewed author version | 1.19 MB | Adobe PDF | View/Open |
1-s2.0-S0032386118300284-main.pdf Restricted Access | Published version | 1.91 MB | Adobe PDF | View/Open Request a copy |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.