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Pressure effects on single molecules of terrylene in p-terphenyl

✍ Scribed by A. Müller; W. Richter; L. Kador

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
619 KB
Volume
241
Category
Article
ISSN
0009-2614

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✦ Synopsis

The hydrostatic-pressure shift of the zero-phonon lines of single terrylene molecules in a p-terphenyl host crystal was measured at 1.6 K. We found four inhomogeneous absorption bands of the terrylene molecules in p-terphenyl with inhomogeneous widths between 15 and 33 GHz, corresponding to four crystal sites, and we measured the pressure shift of single molecules in the sites X2, X3, and X4. All the molecules investigated (35 in total) exhibited a linear and reversible red-shift with increasing pressure, with magnitudes between -0.92 and -1.48 MHz/hPa. The pressure shift parameter was found to be independent of the spectral position of the molecules.

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