Charge carrier transport in organic crystals doped with antitraps. anthracene/2,3-dimethylnaphthalene

✍ Scribed by Naoyoshi Emoto; Masahiro Kotani

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 587 KB
• Volume: 101
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(83)87500-9

✦ Synopsis

Pulsed photoconduction

measurements are made with anthracene crystals heavily doped with 2.3dimethyInaphthaIene (DMN). This system forms a solid solution in a fairly wide concentration range. In these crystals charge carrier transport is thought to occur through anthracene sites. It is found that DhlN doping (~1%) makes the carrier transport insensitive to deep traps, which are present in neat anthracene crystals. This is accounted for in terms of random walks of the carriers in a lattice v. hich contains antirraps. With higher levels of doping, carriers exhibit a dispersive behavior which we believe is the first observation of a dispersive transport in a crystalline lattice.