Here we report on the effect of light on surface and bulk morphology, structural and optical properties of polymer/fullerene blends used for organic solar cells. The crystallization kinetics of the organic film molecules was followed in real time during illumination, by time-resolved X-ray diffraction, applied in-situ, jointly with atomic force microscopy. The occurrence of possible phase separation of the two components was detected. This latter hypothesis was confirmed by Fourier Transform Infrared spectroscopy experiments. As a result of such cross monitoring, a comprehensive picture of the chemical/physical process concurring to the devices photo-active layers aging was gained. (C) 2011 Elsevier B.V. All rights reserved.
Structural/morphological monitoring approach to stability and durability issues of photoactive films for organic solar cells / B., Paci; Amanda, Generosi; Bailo, Daniele; Caminiti, Ruggero; R., De Bettignie; V. R., Albertini. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - STAMPA. - 504:4-6(2011), pp. 216-220. [10.1016/j.cplett.2011.02.011]
Structural/morphological monitoring approach to stability and durability issues of photoactive films for organic solar cells
BAILO, DANIELE;CAMINITI, Ruggero;
2011
Abstract
Here we report on the effect of light on surface and bulk morphology, structural and optical properties of polymer/fullerene blends used for organic solar cells. The crystallization kinetics of the organic film molecules was followed in real time during illumination, by time-resolved X-ray diffraction, applied in-situ, jointly with atomic force microscopy. The occurrence of possible phase separation of the two components was detected. This latter hypothesis was confirmed by Fourier Transform Infrared spectroscopy experiments. As a result of such cross monitoring, a comprehensive picture of the chemical/physical process concurring to the devices photo-active layers aging was gained. (C) 2011 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
