Dielectrically confined excitons and polaritons in natural superlattices - Perovskite lead iodide semiconductors

N. A. Gippius; E. A. Muljarov; S. G. Tikhodeev; Teruya Ishihara; L. V. Keldysh

Dielectrically confined excitons and polaritons in natural superlattices - Perovskite lead iodide semiconductors

N. A. Gippius, E. A. Muljarov, S. G. Tikhodeev, Teruya Ishihara, L. V. Keldysh

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A large class of new layered semiconductors - lead iodide compounds - is of great interest because of possible optoelectronic applications due to pronounced excitonic effects. These compounds may be regarded as naturally grown semiconductor/insulator superlattices, with perovskite lead iodide (semiconductor) layers sandwiched by alkylammonium (insulator) layers. Exciton binding energies and oscillator strength in these structures are enhanced due to the so-called `dielectric confinement' caused by large difference between dielectric constants of adjoining layers. The binding energies, wave functions, & diamagnetic coefficient of excitons in these naturally grown superlattices are calculated with allowance for the image potential and the superlattice structure of the compounds. The localization of excitons in lead iodide layers causes also a strong dependence of a polariton spike in reflection spectra on the polarization of electromagnetic wave. The results obtained are in agreement with the experimental data.

Original language	English
Title of host publication	Electrical, Optical, and Magnetic Properties of Organic Solid State Materials
Editors	Anthony F. Garito, Alex K-Y. Jen, Charles Y-C. Lee, Larry R. Dalton
Publisher	Publ by Materials Research Society
Pages	775-780
Number of pages	6
Volume	328
ISBN (Print)	1558992278
Publication status	Published - 1994 Jan 1
Externally published	Yes
Event	Proceedings of the MRS 1993 Fall Meeting - Boston, MA, USA Duration: 1993 Nov 29 → 1993 Dec 3

Other

Other	Proceedings of the MRS 1993 Fall Meeting
City	Boston, MA, USA
Period	93/11/29 → 93/12/3

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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Gippius, N. A., Muljarov, E. A., Tikhodeev, S. G., Ishihara, T., & Keldysh, L. V. (1994). Dielectrically confined excitons and polaritons in natural superlattices - Perovskite lead iodide semiconductors. In A. F. Garito, A. K-Y. Jen, C. Y-C. Lee, & L. R. Dalton (Eds.), Electrical, Optical, and Magnetic Properties of Organic Solid State Materials (Vol. 328, pp. 775-780). Publ by Materials Research Society.

Dielectrically confined excitons and polaritons in natural superlattices - Perovskite lead iodide semiconductors. / Gippius, N. A.; Muljarov, E. A.; Tikhodeev, S. G.; Ishihara, Teruya; Keldysh, L. V.

Electrical, Optical, and Magnetic Properties of Organic Solid State Materials. ed. / Anthony F. Garito; Alex K-Y. Jen; Charles Y-C. Lee; Larry R. Dalton. Vol. 328 Publ by Materials Research Society, 1994. p. 775-780.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gippius, NA, Muljarov, EA, Tikhodeev, SG, Ishihara, T & Keldysh, LV 1994, Dielectrically confined excitons and polaritons in natural superlattices - Perovskite lead iodide semiconductors. in AF Garito, AK-Y Jen, CY-C Lee & LR Dalton (eds), Electrical, Optical, and Magnetic Properties of Organic Solid State Materials. vol. 328, Publ by Materials Research Society, pp. 775-780, Proceedings of the MRS 1993 Fall Meeting, Boston, MA, USA, 93/11/29.

Gippius NA, Muljarov EA, Tikhodeev SG, Ishihara T, Keldysh LV. Dielectrically confined excitons and polaritons in natural superlattices - Perovskite lead iodide semiconductors. In Garito AF, Jen AK-Y, Lee CY-C, Dalton LR, editors, Electrical, Optical, and Magnetic Properties of Organic Solid State Materials. Vol. 328. Publ by Materials Research Society. 1994. p. 775-780

Gippius, N. A. ; Muljarov, E. A. ; Tikhodeev, S. G. ; Ishihara, Teruya ; Keldysh, L. V. / Dielectrically confined excitons and polaritons in natural superlattices - Perovskite lead iodide semiconductors. Electrical, Optical, and Magnetic Properties of Organic Solid State Materials. editor / Anthony F. Garito ; Alex K-Y. Jen ; Charles Y-C. Lee ; Larry R. Dalton. Vol. 328 Publ by Materials Research Society, 1994. pp. 775-780

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abstract = "A large class of new layered semiconductors - lead iodide compounds - is of great interest because of possible optoelectronic applications due to pronounced excitonic effects. These compounds may be regarded as naturally grown semiconductor/insulator superlattices, with perovskite lead iodide (semiconductor) layers sandwiched by alkylammonium (insulator) layers. Exciton binding energies and oscillator strength in these structures are enhanced due to the so-called `dielectric confinement' caused by large difference between dielectric constants of adjoining layers. The binding energies, wave functions, & diamagnetic coefficient of excitons in these naturally grown superlattices are calculated with allowance for the image potential and the superlattice structure of the compounds. The localization of excitons in lead iodide layers causes also a strong dependence of a polariton spike in reflection spectra on the polarization of electromagnetic wave. The results obtained are in agreement with the experimental data.",

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AU - Gippius, N. A.

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AU - Keldysh, L. V.

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N2 - A large class of new layered semiconductors - lead iodide compounds - is of great interest because of possible optoelectronic applications due to pronounced excitonic effects. These compounds may be regarded as naturally grown semiconductor/insulator superlattices, with perovskite lead iodide (semiconductor) layers sandwiched by alkylammonium (insulator) layers. Exciton binding energies and oscillator strength in these structures are enhanced due to the so-called `dielectric confinement' caused by large difference between dielectric constants of adjoining layers. The binding energies, wave functions, & diamagnetic coefficient of excitons in these naturally grown superlattices are calculated with allowance for the image potential and the superlattice structure of the compounds. The localization of excitons in lead iodide layers causes also a strong dependence of a polariton spike in reflection spectra on the polarization of electromagnetic wave. The results obtained are in agreement with the experimental data.

AB - A large class of new layered semiconductors - lead iodide compounds - is of great interest because of possible optoelectronic applications due to pronounced excitonic effects. These compounds may be regarded as naturally grown semiconductor/insulator superlattices, with perovskite lead iodide (semiconductor) layers sandwiched by alkylammonium (insulator) layers. Exciton binding energies and oscillator strength in these structures are enhanced due to the so-called `dielectric confinement' caused by large difference between dielectric constants of adjoining layers. The binding energies, wave functions, & diamagnetic coefficient of excitons in these naturally grown superlattices are calculated with allowance for the image potential and the superlattice structure of the compounds. The localization of excitons in lead iodide layers causes also a strong dependence of a polariton spike in reflection spectra on the polarization of electromagnetic wave. The results obtained are in agreement with the experimental data.

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