The role of humidity in organic photovoltaic devices

PCCP ‘HOT’ article – Exposure to humidity leads to metal ion concentrations of up to one per 4.7 polymer units

metal ion migration

The stability of a common interface used in organic photovoltaic cells, between the transparent electrode of Indium Tin Oxide (ITO) and the polymer buffer layer (PEDOT:PSS) is strongly influenced by the presence of humidity during processing. This leads to significant migration of indium and tin species into the PEDOT:PSS layer.

Role of humidity on indium and tin migration in organic photovoltaic devices
Anirudh Sharma, Gunther Andersson and David A. Lewis
Phys. Chem. Chem. Phys.
, 2011, DOI: 10.1039/C0CP02203A

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