Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 140, Issue -, Pages 25-32Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2015.03.015
Keywords
TEM; Organic photovoltaics; Degradation; Humidity; Water; Grain size
Funding
- EPSRC [EP/I029257/1]
- Engineering and Physical Sciences Research Council [EP/I029257/1] Funding Source: researchfish
- EPSRC [EP/I029257/1] Funding Source: UKRI
Ask authors/readers for more resources
Cross-sectional TEM and SEM have been used to study the degradation of organic solar cells when exposed to a high humidity environment. Two obvious effects were caused by this exposure: voids at the aluminium/calcium interface and large bubble like protrusions on the top surface. Water ingress was found to occur mainly from the edge rather than through pinholes or defects in the aluminium film. The grain size of the aluminium used in the cathode was varied and small grained devices were found to have degraded faster. The importance of minimising water ingress into devices through cathode design and choice of materials is highlighted. (C) 2015 The Authors. Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available