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An optical study of single pentacene molecules in n-tetradecane

Journal Article


Abstract


  • We report the spectroscopic observation of single pentacene molecules in the matrices n-tetradecane and n-hexadecane, using a confocal microscope operating at liquid-helium temperatures. A maximum detected photon emission rate of only 30 counts per second (cps) is found for pentacene in n-hexadecane and 160 cps for pentacene in n-tetradecane. For the latter system, the low count rate is shown to be caused by a high S1→T1 intersystem crossing yield of about 40% in combination with a triplet lifetime of 33±3 μs. Pentacene molecules in this polycrystalline host are found to show little spectral diffusion on a timescale of seconds.

Publication Date


  • 2000

Citation


  • Durand, Y., Bloeß, A., Van Oijen, A. M., Köhler, J., Groenen, E. J. J., & Schmidt, J. (2000). An optical study of single pentacene molecules in n-tetradecane. Chemical Physics Letters, 317(3-5), 232-237. doi:10.1016/S0009-2614(99)01393-7

Scopus Eid


  • 2-s2.0-0001382163

Start Page


  • 232

End Page


  • 237

Volume


  • 317

Issue


  • 3-5

Abstract


  • We report the spectroscopic observation of single pentacene molecules in the matrices n-tetradecane and n-hexadecane, using a confocal microscope operating at liquid-helium temperatures. A maximum detected photon emission rate of only 30 counts per second (cps) is found for pentacene in n-hexadecane and 160 cps for pentacene in n-tetradecane. For the latter system, the low count rate is shown to be caused by a high S1→T1 intersystem crossing yield of about 40% in combination with a triplet lifetime of 33±3 μs. Pentacene molecules in this polycrystalline host are found to show little spectral diffusion on a timescale of seconds.

Publication Date


  • 2000

Citation


  • Durand, Y., Bloeß, A., Van Oijen, A. M., Köhler, J., Groenen, E. J. J., & Schmidt, J. (2000). An optical study of single pentacene molecules in n-tetradecane. Chemical Physics Letters, 317(3-5), 232-237. doi:10.1016/S0009-2614(99)01393-7

Scopus Eid


  • 2-s2.0-0001382163

Start Page


  • 232

End Page


  • 237

Volume


  • 317

Issue


  • 3-5