Optical properties of films built up by polar molecules

Saulius Jursenas; A. Gruodis; G. Kodis; Leonas Valkunas; I. Kaulach; Edgar A. Silinsh

doi:10.1117/12.266840

Optical properties of films built up by polar molecules

Saulius Jursenas, A. Gruodis, G. Kodis, Leonas Valkunas, I. Kaulach, Edgar A. Silinsh

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

The origin of the excited states and the spectroscopic features of polar molecular films and crystals of N,N- dimethylaminobenzylidene 1,3-indandione (DMABI) was considered. The formation of charge transfer exciton states in the absorption and luminescence spectra by increase of the thicknesses of DMABI films was observed. The evidence of a strong exciton-phonon interaction and its effects on the exciton absorption and luminescence spectra was discovered. The coexistence of free and self-trapped excitons at elevated temperatures was found in DMABI films. The dynamics of both shallow short-lived and deeply trapped long-lived self-trapped exciton states in various films and crystal of DMABI was discussed.

Original language	English (US)
Pages (from-to)	24-33
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	2968
DOIs	https://doi.org/10.1117/12.266840
State	Published - 1997
Externally published	Yes
Event	Optical Organic and Semiconductor Inorganic Materials - Riga, Latvia Duration: Aug 26 1996 → Aug 26 1996

Keywords

Charge transfer
Luminescence
Molecular crystals
N,N-dimethylaminobenzylidene 1,3-indandione
Self-trapped excitons
Spectroscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.266840

Cite this

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title = "Optical properties of films built up by polar molecules",

abstract = "The origin of the excited states and the spectroscopic features of polar molecular films and crystals of N,N- dimethylaminobenzylidene 1,3-indandione (DMABI) was considered. The formation of charge transfer exciton states in the absorption and luminescence spectra by increase of the thicknesses of DMABI films was observed. The evidence of a strong exciton-phonon interaction and its effects on the exciton absorption and luminescence spectra was discovered. The coexistence of free and self-trapped excitons at elevated temperatures was found in DMABI films. The dynamics of both shallow short-lived and deeply trapped long-lived self-trapped exciton states in various films and crystal of DMABI was discussed.",

keywords = "Charge transfer, Luminescence, Molecular crystals, N,N-dimethylaminobenzylidene 1,3-indandione, Self-trapped excitons, Spectroscopy",

author = "Saulius Jursenas and A. Gruodis and G. Kodis and Leonas Valkunas and I. Kaulach and Silinsh, {Edgar A.}",

year = "1997",

doi = "10.1117/12.266840",

language = "English (US)",

volume = "2968",

pages = "24--33",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Optical Organic and Semiconductor Inorganic Materials ; Conference date: 26-08-1996 Through 26-08-1996",

}

TY - JOUR

T1 - Optical properties of films built up by polar molecules

AU - Jursenas, Saulius

AU - Gruodis, A.

AU - Kodis, G.

AU - Valkunas, Leonas

AU - Kaulach, I.

AU - Silinsh, Edgar A.

PY - 1997

Y1 - 1997

N2 - The origin of the excited states and the spectroscopic features of polar molecular films and crystals of N,N- dimethylaminobenzylidene 1,3-indandione (DMABI) was considered. The formation of charge transfer exciton states in the absorption and luminescence spectra by increase of the thicknesses of DMABI films was observed. The evidence of a strong exciton-phonon interaction and its effects on the exciton absorption and luminescence spectra was discovered. The coexistence of free and self-trapped excitons at elevated temperatures was found in DMABI films. The dynamics of both shallow short-lived and deeply trapped long-lived self-trapped exciton states in various films and crystal of DMABI was discussed.

AB - The origin of the excited states and the spectroscopic features of polar molecular films and crystals of N,N- dimethylaminobenzylidene 1,3-indandione (DMABI) was considered. The formation of charge transfer exciton states in the absorption and luminescence spectra by increase of the thicknesses of DMABI films was observed. The evidence of a strong exciton-phonon interaction and its effects on the exciton absorption and luminescence spectra was discovered. The coexistence of free and self-trapped excitons at elevated temperatures was found in DMABI films. The dynamics of both shallow short-lived and deeply trapped long-lived self-trapped exciton states in various films and crystal of DMABI was discussed.

KW - Charge transfer

KW - Luminescence

KW - Molecular crystals

KW - N,N-dimethylaminobenzylidene 1,3-indandione

KW - Self-trapped excitons

KW - Spectroscopy

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UR - http://www.scopus.com/inward/citedby.url?scp=58049213381&partnerID=8YFLogxK

U2 - 10.1117/12.266840

DO - 10.1117/12.266840

M3 - Conference article

AN - SCOPUS:58049213381

SN - 0277-786X

VL - 2968

SP - 24

EP - 33

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Optical Organic and Semiconductor Inorganic Materials

Y2 - 26 August 1996 through 26 August 1996

ER -

Optical properties of films built up by polar molecules

Abstract

Keywords

ASJC Scopus subject areas

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