Preparation and investigation of phthalocyanine/C 60 solar cells
- 24 February 2003
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- Vol. 4801, 1-7
- https://doi.org/10.1117/12.456323
Abstract
Phthalocyanine/C60 heterostructure organic solar cells were fabricated by evaporating highly purified materials under high vacuum conditions. 1%-2.5% external power conversion efficiencies were obtained with ITO / PEDOT:PSS / 300 angstrom ZnPc / 300 angstrom C60 / 170 angstrom BCP/Al layering. The role of the buffer layers at the interfaces to the electrodes and their influence on the I-V characteristics was studied. Degradation of the organic cell caused by air and light exposure was investigated. Atmospheric oxygen diffusing into C60 films was identified as external source of degradation. A second source was spotted in the interior of the cell.Keywords
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