Polyethylenimine cathode interlayer: influence of solvent on functionality and single-step formation from polymer blend solution

Andreas Opitz; Dominique Lungwitz; Raphael Schlesinger; Sujitkumar Bontapalle; Susy Varughese; Keli Fabiana Seidel; Thomas Krüger; Jan Behrends; Seth R. Marder; Norbert Koch

doi:10.1117/12.2593881

1 August 2021 Polyethylenimine cathode interlayer: influence of solvent on functionality and single-step formation from polymer blend solution

Andreas Opitz, Dominique Lungwitz, Raphael Schlesinger, Sujitkumar Bontapalle, Susy Varughese, Keli Fabiana Seidel, Thomas Krüger, Jan Behrends, Seth R. Marder, Norbert Koch

Author Affiliations +

Proceedings Volume 11809, Organic, Hybrid, and Perovskite Photovoltaics XXII; 118090Q (2021) https://doi.org/10.1117/12.2593881
Event: SPIE Organic Photonics + Electronics, 2021, San Diego, California, United States

Abstract

Polyethylenimine (PEI) layers are used as cathode interlayer to reduce the work function of electrode materials and are frequently applied to organic or perovskite opto-electronic devices. PEI was applied from solution on poly(3,4-ethylenedioxythiophene):polystyrene sulfonate mixture, zinc oxide and graphite. Choice of solvent and residual solvent removal ensure the superior functionality. [1] Furthermore, a single-step formation of a low work function cathode interlayer and n‑type bulk doping from semiconducting polymer/PEI blend solution was observed. [2] [1] S. Bontapalle et al., Adv. Mater. Interface 7 (2020) 2000291. [2] K. Seidel et al., ACS Appl. Mater. Interfaces 12 (2020) 28801.

Conference Presentation

Citation Download Citation

Andreas Opitz, Dominique Lungwitz, Raphael Schlesinger, Sujitkumar Bontapalle, Susy Varughese, Keli Fabiana Seidel, Thomas Krüger, Jan Behrends, Seth R. Marder, and Norbert Koch "Polyethylenimine cathode interlayer: influence of solvent on functionality and single-step formation from polymer blend solution", Proc. SPIE 11809, Organic, Hybrid, and Perovskite Photovoltaics XXII, 118090Q (1 August 2021); https://doi.org/10.1117/12.2593881

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE