Self-trapped exciton singlet-triplet splitting in crystals with α-quartz structure: SiO2, SiO2-Ge, GeO2, AlPO4 and GaPO4

A. N. Trukhin

doi:10.1088/0953-8984/20/12/125217

Self-trapped exciton singlet-triplet splitting in crystals with α-quartz structure: SiO₂, SiO₂-Ge, GeO₂, AlPO₄ and GaPO₄

A. N. Trukhin^*

^*Corresponding author for this work

Laboratory of Optical Materials, Institute of Solid State Physics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

A fast component of the self-trapped exciton (STE) luminescence was discovered in crystals with α-quartz structure such as SiO₂, SiO₂-Ge, GeO₂, AlPO₄ and GaPO₄, manifesting the singlet-singlet transitions of STEs. Comparison of time resolved photoluminescence (PL) spectra of triplet-singlet transitions and fast singlet-singlet transitions showed the singlet-triplet splitting of STEs in a pure SiO₂α-quartz crystal to be 0.2eV. In other crystals, the singlet-triplet splitting was found to be less than 0.2eV. Small singlet-triplet intervals confirm that electrons of the STE are not confined in one atom's area.

Original language	English
Article number	125217
Journal	Journal of Physics Condensed Matter
Volume	20
Issue number	12
DOIs	https://doi.org/10.1088/0953-8984/20/12/125217
Publication status	Published - 26 Mar 2008

Access to Document

10.1088/0953-8984/20/12/125217

Cite this

@article{94e22582de394b849157b10f715e478b,

title = "Self-trapped exciton singlet-triplet splitting in crystals with α-quartz structure: SiO2, SiO2-Ge, GeO2, AlPO4 and GaPO4",

abstract = "A fast component of the self-trapped exciton (STE) luminescence was discovered in crystals with α-quartz structure such as SiO2, SiO2-Ge, GeO2, AlPO4 and GaPO4, manifesting the singlet-singlet transitions of STEs. Comparison of time resolved photoluminescence (PL) spectra of triplet-singlet transitions and fast singlet-singlet transitions showed the singlet-triplet splitting of STEs in a pure SiO2α-quartz crystal to be 0.2eV. In other crystals, the singlet-triplet splitting was found to be less than 0.2eV. Small singlet-triplet intervals confirm that electrons of the STE are not confined in one atom's area.",

author = "Trukhin, \{A. N.\}",

year = "2008",

month = mar,

day = "26",

doi = "10.1088/0953-8984/20/12/125217",

language = "English",

volume = "20",

journal = "Journal of Physics Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd.",

number = "12",

}

TY - JOUR

T1 - Self-trapped exciton singlet-triplet splitting in crystals with α-quartz structure

T2 - SiO2, SiO2-Ge, GeO2, AlPO4 and GaPO4

AU - Trukhin, A. N.

PY - 2008/3/26

Y1 - 2008/3/26

N2 - A fast component of the self-trapped exciton (STE) luminescence was discovered in crystals with α-quartz structure such as SiO2, SiO2-Ge, GeO2, AlPO4 and GaPO4, manifesting the singlet-singlet transitions of STEs. Comparison of time resolved photoluminescence (PL) spectra of triplet-singlet transitions and fast singlet-singlet transitions showed the singlet-triplet splitting of STEs in a pure SiO2α-quartz crystal to be 0.2eV. In other crystals, the singlet-triplet splitting was found to be less than 0.2eV. Small singlet-triplet intervals confirm that electrons of the STE are not confined in one atom's area.

AB - A fast component of the self-trapped exciton (STE) luminescence was discovered in crystals with α-quartz structure such as SiO2, SiO2-Ge, GeO2, AlPO4 and GaPO4, manifesting the singlet-singlet transitions of STEs. Comparison of time resolved photoluminescence (PL) spectra of triplet-singlet transitions and fast singlet-singlet transitions showed the singlet-triplet splitting of STEs in a pure SiO2α-quartz crystal to be 0.2eV. In other crystals, the singlet-triplet splitting was found to be less than 0.2eV. Small singlet-triplet intervals confirm that electrons of the STE are not confined in one atom's area.

UR - https://www.scopus.com/pages/publications/40549106096

U2 - 10.1088/0953-8984/20/12/125217

DO - 10.1088/0953-8984/20/12/125217

M3 - Article

AN - SCOPUS:40549106096

SN - 0953-8984

VL - 20

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 12

M1 - 125217

ER -

Self-trapped exciton singlet-triplet splitting in crystals with α-quartz structure: SiO₂, SiO₂-Ge, GeO₂, AlPO₄ and GaPO₄

Abstract

Access to Document

Other files and links

Fingerprint

Cite this