Luminescence properties and energy transfer processes in nanosized cerium doped YAG

Vladimir Pankratov; Larisa Grigorjeva; Stanislav Chernov; Tadeusz Chudoba; Witold Lojkowski

doi:10.1109/TNS.2007.915070

Luminescence properties and energy transfer processes in nanosized cerium doped YAG

Vladimir Pankratov^*
, Larisa Grigorjeva
, Stanislav Chernov
, Tadeusz Chudoba
, Witold Lojkowski

^*Šī darba korespondējošais autors

Spektroskopijas laboratorija, Cietvielu fizikas institūts

Pētījuma izpildes rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

31 Atsauces (Scopus)

Kopsavilkums

Luminescence properties of cerium doped Y₃Al₅O ₁₂ (YAG) nanocrystals in form of nanopowders and nanoceramics have been studied. The comparative analysis of luminescence characteristics for nano- and single- crystals has been done. It was detected that an excitonic mechanism of the energy transfer from the host lattice to cerium ions does not work in nanopowders and nanoceramic. It was also shown that antisite-related and self-trapped exciton-related luminescence bands are suppressed strongly in nanopowders, and it can be excited only under certain circumstances. These bands practically disappeared in the nanoceramic samples. It was suggested that nanoparticle's surface, which is an efficient trap for excitons and charge carriers, plays the crucial role in peculiarities of luminescence characteristics in nanocrystals.

Oriģinālvaloda	Angļu
Raksta numurs	4545193
Lapas (no-līdz)	1509-1513
Lapu skaits	5
Žurnāls	IEEE Transactions on Nuclear Science
Sējums	55
Izdevuma numurs	3
DOIs	https://doi.org/10.1109/TNS.2007.915070
Publikācijas statuss	Publicēts - jūn. 2008

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@article{b094ef85b9fc4fa899ed4f951ed748b6,

title = "Luminescence properties and energy transfer processes in nanosized cerium doped YAG",

abstract = "Luminescence properties of cerium doped Y3Al5O 12 (YAG) nanocrystals in form of nanopowders and nanoceramics have been studied. The comparative analysis of luminescence characteristics for nano- and single- crystals has been done. It was detected that an excitonic mechanism of the energy transfer from the host lattice to cerium ions does not work in nanopowders and nanoceramic. It was also shown that antisite-related and self-trapped exciton-related luminescence bands are suppressed strongly in nanopowders, and it can be excited only under certain circumstances. These bands practically disappeared in the nanoceramic samples. It was suggested that nanoparticle's surface, which is an efficient trap for excitons and charge carriers, plays the crucial role in peculiarities of luminescence characteristics in nanocrystals.",

keywords = "Nanoceramic, Nanocrystals, Scintillators, Time-resolved luminescence, Yttrium-aluminum garnet (YAG)",

author = "Vladimir Pankratov and Larisa Grigorjeva and Stanislav Chernov and Tadeusz Chudoba and Witold Lojkowski",

year = "2008",

month = jun,

doi = "10.1109/TNS.2007.915070",

language = "English",

volume = "55",

pages = "1509--1513",

journal = "IEEE Transactions on Nuclear Science",

issn = "0018-9499",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "3",

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TY - JOUR

T1 - Luminescence properties and energy transfer processes in nanosized cerium doped YAG

AU - Pankratov, Vladimir

AU - Grigorjeva, Larisa

AU - Chernov, Stanislav

AU - Chudoba, Tadeusz

AU - Lojkowski, Witold

PY - 2008/6

Y1 - 2008/6

N2 - Luminescence properties of cerium doped Y3Al5O 12 (YAG) nanocrystals in form of nanopowders and nanoceramics have been studied. The comparative analysis of luminescence characteristics for nano- and single- crystals has been done. It was detected that an excitonic mechanism of the energy transfer from the host lattice to cerium ions does not work in nanopowders and nanoceramic. It was also shown that antisite-related and self-trapped exciton-related luminescence bands are suppressed strongly in nanopowders, and it can be excited only under certain circumstances. These bands practically disappeared in the nanoceramic samples. It was suggested that nanoparticle's surface, which is an efficient trap for excitons and charge carriers, plays the crucial role in peculiarities of luminescence characteristics in nanocrystals.

AB - Luminescence properties of cerium doped Y3Al5O 12 (YAG) nanocrystals in form of nanopowders and nanoceramics have been studied. The comparative analysis of luminescence characteristics for nano- and single- crystals has been done. It was detected that an excitonic mechanism of the energy transfer from the host lattice to cerium ions does not work in nanopowders and nanoceramic. It was also shown that antisite-related and self-trapped exciton-related luminescence bands are suppressed strongly in nanopowders, and it can be excited only under certain circumstances. These bands practically disappeared in the nanoceramic samples. It was suggested that nanoparticle's surface, which is an efficient trap for excitons and charge carriers, plays the crucial role in peculiarities of luminescence characteristics in nanocrystals.

KW - Nanoceramic

KW - Nanocrystals

KW - Scintillators

KW - Time-resolved luminescence

KW - Yttrium-aluminum garnet (YAG)

UR - https://www.scopus.com/pages/publications/45849119880

U2 - 10.1109/TNS.2007.915070

DO - 10.1109/TNS.2007.915070

M3 - Article

AN - SCOPUS:45849119880

SN - 0018-9499

VL - 55

SP - 1509

EP - 1513

JO - IEEE Transactions on Nuclear Science

JF - IEEE Transactions on Nuclear Science

IS - 3

M1 - 4545193

ER -

Luminescence properties and energy transfer processes in nanosized cerium doped YAG

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