Growth of 3,4,9,10-perylenetetracarboxylic-dianhydride crystallites on noble metal surfaces
✍ Scribed by Th. Wagner; A. Bannani; C. Bobisch; H. Karacuban; M. Stöhr; M. Gabriel; R. Möller
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 947 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1566-1199
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We study excitons in crystalline thin fiims of the archetype molecular compound: 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) by measuring the photocurrent response under small electric fields (< lo4 V/cm). A previously uncharacterized exciton at a wavelength of A = 590 nm, or at 2.10 eV abo
## Abstract 3,4:9,10‐Perylenetetracarboxylic dianhydride (PTCDA) powder obtained from Sigma‐Aldrich was purified by three cycles of temperature gradient sublimation in an evacuated quartz glass tube providing variable conditions. By means of X‐ray diffraction (XRD) analysis, a crystallographic char