Share Email Print
cover

Proceedings Paper

Stabilization methods for small molecule dewetting on indium tin oxide substrates for organic photovoltaics
Author(s): Jonathan Heidkamp; Felix Maye; Ayse Z. Turak
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Heterojunctions are inherent in and essential to all molecular electronic devices. In organic solar cells, in particular, heterojunctions play a defining role in all of the major electrical processes and particularly in stability. The p-type organic molecule diindenoperylene (DIP) is an interesting photoactive organic molecule that forms inherently unstable interfaces within organic solar cell devices. Using scanning probe microscopies, supported by x-ray scattering, we examined the stability of inorganic/organic interfaces at both charge extraction electrodes. The DIP morphology can be stabilized by: 1. roughening the ITO surface, which disrupts the molecular packing, 2. using an interlayer such as PEDOT:PSS, which modifies the surface energy, or 3. depositing a dielectric layer, LiF, which pins the DIP grain boundaries. Any combination of the approaches would lead to significant improvements in solar cell lifetime.

Paper Details

Date Published: 11 October 2013
PDF: 9 pages
Proc. SPIE 8915, Photonics North 2013, 891508 (11 October 2013); doi: 10.1117/12.2036778
Show Author Affiliations
Jonathan Heidkamp, Max-Planck-Institut für Intelligente Systeme (Germany)
Felix Maye, Max-Planck-Institut für Intelligente Systeme (Germany)
Ayse Z. Turak, Max-Planck-Institut für Intelligente Systeme (Germany)
McMaster Univ. (Canada)


Published in SPIE Proceedings Vol. 8915:
Photonics North 2013
Pavel Cheben; Jens Schmid; Caroline Boudoux; Lawrence R. Chen; André Delâge; Siegfried Janz; Raman Kashyap; David J. Lockwood; Hans-Peter Loock; Zetian Mi, Editor(s)

© SPIE. Terms of Use
Back to Top