Thermochromism of fluorescent colors
โ Scribed by Jarkko Mutanen; Timo Jaaskelainen; Jussi P. S. Parkkinen
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 754 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0361-2317
No coin nor oath required. For personal study only.
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Thennochromic shifts of pyrene excimer were obtained in cyclohexane (25-60'(Z) and ethanol (25-70%). The observed shifts are due to changes in polarinability between the states involved in the electronic transition. The parameters obtained from thermoehromic shifts agree with the ones calculated fro
## Abstract The color of an object depends on the temperature of the object. This phenomenon is known as the thermochromic effect, and it is already noticeable at room temperature if the temperature varies just a few centigrades. Red and orange samples are especially sensitive to temperature variat
The displacement of the fluorescence band of several dipolar molecules and of the pyrene/N,N-dimethylaniline exciplex have been measured as a function of temperature in various solvents. The excited-state dipole moments calculated from these thermochromic shifts agree with those derived by other met