Pressure-induced luminescence of N-isopropylcarbazole single crystal

✍ Scribed by J. Kalinowski; J. Godlewski; Z. Dreger; P. Mondalski

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 345 KB
• Volume: 128
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(86)80657-1

✦ Synopsis

The spontaneous emission of light from single crystals of Nisopropylcarbazole under changing hydrostatic pressure (pressure-induced luminescence) has been observed for the first time. The luminescence consists of bursts of light around characteristic pressures at which pressure-induced structural transitions are believed to take place, This new phenomenon is interpreted ln terms of the electrical discbarge in the ambient gas involving high electric fields produced by spontaneous polarization at fresh microcrystal faces emerging during crystal cracking on structural transformations.