Abstract
We made photovoltaic cells containing two organic layers. The hole-conducting layer consists of a hexa-peri-hexabenzocoronene (HBC) derivative. The electron-conducting component is an alkylester of perylene tetracarboxylic acid. Both compounds form columnar mesophases which can provide 1D pathways for transport. The current/voltage-characteristics of the two-layer devices indicate a photovoltaic effect with an open circuit voltage of V oc ≈ 0.8V, a short circuit current of Isc ≈ 3.9 μA/cm2, and a filling factor of FF ≤ 31%. The spectral distribution of the photocurrent of different samples indicates that excitations of the perylene derivative or of the HBC derivative both can lead to a photovoltaic effect.
Original language | English |
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Pages (from-to) | 461/[2597]-472/[2608] |
Journal | Molecular Crystals and Liquid Crystals |
Volume | 413 |
DOIs | |
State | Published - 2004 |
Event | Proceedings of the 19th International Liquid Crystal Conference, ILCC2002 - Edinburgh, United Kingdom Duration: Jun 30 2002 → Jul 5 2002 |
Keywords
- Columnar liquid crystals
- Discotic
- Photovoltaic cells
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics