Two-dimensional excitons in a layered-perovskite-type crystal (C/sub 6/H/sub 13/NH/sub 3/)/sub 2/PbI/sub 4/

Author

Tanaka, K. ; Sano, K. ; Takahashi, T. ; Kondo, T.

Author_Institution

Dept. of Mater. Sci., Univ. of Tokyo, Japan

fYear

2002

fDate

19-24 May 2002

Firstpage

145

Lastpage

146

Abstract

Summary form only given. It has been found that the lowest-energy exciton in (C/sub 6/H/sub 13/NH/sub 3/)/sub 2/PbI/sub 4/ is so stable that the excitonic absorption peaks are clearly observable even at room temperature. It has been shown by four-wave-mixing (FWM) spectroscopy that it has large /spl chi//sup (3)/ value (10/sup -6/ esu) and fast response time (<7 ps) at the exciton resonance, and that the exciton-exciton interactions play an important role in the FWM processes.

Keywords

electroabsorption; excitons; multiwave mixing; optical films; organic compounds; two-photon spectra; visible spectra; (C/sub 6/H/sub 13/NH/sub 3/)/sub 2/PbI/sub 4/; 7 ps; FWM processes; exciton resonance; exciton-exciton interactions; excitonic absorption peaks; fast response time; four-wave-mixing spectroscopy; layered-perovskite-type crystal; room temperature; two-dimensional excitons; Electroabsorption; Excitons; Optical films; Optical mixing; Optical spectroscopy; Organic compounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-708-3

Type

conf

DOI

10.1109/QELS.2002.1031228

Filename

1031228