Exciton-to-biexciton transition in quasi-one-dimensional organics

S. Mazumdar, F. Guo, K. Meissner, B. Fluegel, N. Peyghambarian, M. Kuwata-Gonokami, Y. Sato, K. Ema, R. Shimano, T. Tokihiro, H. Ezaki, E. Hanamura

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In the previous paper we demonstrated novel multiexcitons in a neutral mixed-stack charge-transfer solid. The lowest multiexciton, the biexciton, has recently been of interest also in the context of quasi-one-dimensional organic materials that are different from the mixed-stack solids. The nature and strength of the optical transition from the exciton to the two-exciton states is of importance in understanding photoinduced absorption as well as two-photon absorption. We show that within the diverse theoretical models that describe these different classes of materials, the excited state absorption from the optical exciton to the two-exciton states changes in a fundamental way upon the formation of the biexciton. The identical nature of the exciton absorption within these models is a consequence of one dimensionality.

Original languageEnglish
Pages (from-to)9292-9296
Number of pages5
JournalJournal of Chemical Physics
Issue number23
Publication statusPublished - 1996 Jun 15

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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    Mazumdar, S., Guo, F., Meissner, K., Fluegel, B., Peyghambarian, N., Kuwata-Gonokami, M., Sato, Y., Ema, K., Shimano, R., Tokihiro, T., Ezaki, H., & Hanamura, E. (1996). Exciton-to-biexciton transition in quasi-one-dimensional organics. Journal of Chemical Physics, 104(23), 9292-9296. https://doi.org/10.1063/1.471707