The UV absorption spectrum of a TP smgle crystal IS measured between 297 and 77 K. The UV spectrum shifts to hyhcr encgy as the temperature falls. The temperature dependence of the UV absorption spectrum mdrcates that a disphcwe transltlon occurs rather than an order-disorder one III a TP crystal.
Phase transition and luminescences in p-Terphenyl crystals
β Scribed by Kenji Uchida; Yoshihiro Takahashi
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 137 KB
- Volume
- 40-41
- Category
- Article
- ISSN
- 0022-2313
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π SIMILAR VOLUMES
The fluorescence emission of p-terphenyl <TP) molecules in solution and in the crystalline state at various temperatures in the range 300-4 K are comparad The appeasance of new bands at higher energies with decreasing temperature ccirresponds with a phase transitlon m the aystanine materiaL The oute
A study of the orientational dynamics of liquid pterphenyl in the time domain by means of transient optical Kerr effect spectroscopy is presented. The orientational relaxation is measured at several temperatures above the liquid-plastic phase transition, following the decay from a few hundreds offs