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Although degradation of polymer solar cells is widely acknowledged, the cause, physical or chemical, has not been identified. The purpose of this work is to determine the applicability of X-ray reflectometry for in situ observation of physical degradation mechanisms. We find that the rough interfaces of the polymer solar cell constituent layers seriously obstruct the sensitivity of the technique, rendering it impossible to elucidate changes in the layer/interface structure at the sub-nanometer level. (c) 2008 Elsevier B.V. All rights reserved.
|Journal||Solar Energy Materials & Solar Cells|
|Publication status||Published - 2008|
Bibliographical noteThis work was
further supported by the Danish Strategic Research
Council (DSF 2104-05-0052 and DSF-2104-07-0022).
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