Exciton fine structure in organic-inorganic quantum well materials

K. Ema, K. Umeda, M. Toda, H. Kunugita, H. Kuroe, T. Sekine, D. Wolverson, J. J. Davies

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Organic-inorganic quantum well materials, (CnH 2n+1NH3)2PbX4 (X=I, Br), form self-organized two-dimensional (2D) systems, where inorganic semiconductor well layers are sandwiched by organic barrier layers. Owing to strong quantum confinement and dielectric enhancement effect, ideal 2D-Wannier exciton exists in these materials [1]. It has been founded that the binding energies of the exciton (Eex) and the biexciton (Ebi) are extremely large (Eex ∼360meV and Ebi ∼40meV for (C 6H13NH3)2PbI4 [1], E ex ∼480meV and Ebi ∼60meV for (C4H 9NH3)2PbBr4 [2]), which are the largest values ever reported. Thanks to the large binding energies, these materials are quite suitable to investigate various properties of 2D-exciton system. In this study, we have investigated the fine structure of the excitons in (C6H13NH3)2PbI4and (C4H9NH3)2PbBr4 using photo-luminescence (PL) measurement under magnetic field and spin-flip Raman scattering (SFRS) measurement.

Original languageEnglish
Title of host publication2005 European Quantum Electronics Conference, EQEC '05
Number of pages1
DOIs
Publication statusPublished - 1 Dec 2005
Event2005 European Quantum Electronics Conference, EQEC '05 - Munich, Germany
Duration: 12 Jun 200517 Jun 2005

Publication series

Name2005 European Quantum Electronics Conference, EQEC '05
Volume2005

Conference

Conference2005 European Quantum Electronics Conference, EQEC '05
CountryGermany
CityMunich
Period12/06/0517/06/05

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ema, K., Umeda, K., Toda, M., Kunugita, H., Kuroe, H., Sekine, T., Wolverson, D., & Davies, J. J. (2005). Exciton fine structure in organic-inorganic quantum well materials. In 2005 European Quantum Electronics Conference, EQEC '05 [1567516] (2005 European Quantum Electronics Conference, EQEC '05; Vol. 2005). https://doi.org/10.1109/EQEC.2005.1567516