Luminescence Studies on Lamp Phosphors

Nagpal, J.S.; Godbole, S.V.; Varadharajan, G.; Page, A.G.

doi:10.1093/oxfordjournals.rpd.a032562

Cited by 22 publications

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“…Compounds of s 2 ions (Те 4+ , Sb 3+ , Bi 3+ , etc.) are effective luminophors used for luminescent lamps, cathode-and X-ray luminophors [1][2][3][4][5], and functional optical materials [1,2,[6][7][8][9][10]. At present, extensive researches have been carried out to develop semiconductor photoelectric modules based on Te(IV), Sb(III), Bi(III), Ti(IV), Pb(II), Sn(IV), and other complexes with the perovskite structure [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Luminescent Properties of Complexes of Tellurium(IV) Halides with Pyridine (C5H5NH)2TeHal6 (Hal = Cl, Br)

Sedakova

Мирочник

2021

Opt. Spectrosc.

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The spectral-luminescent properties of complex compounds of tellurium(IV) halides with pyridine of the composition (C 5 H 5 NH) 2 TeHal 6 (Hal = Cl, Br) are studied. In the case of a distorted island octahedral coordination of the Тe(IV) ion, only the (C 5 H 5 NH) 2 TeСl 6 chloride complex exhibits luminescence at 77 K. Comparative analysis of the influence of the tellurium(IV) coordination polyhedron geometry and the A band position (transition 3 P 1 → 1 S 0 ) in the luminescence spectra on the luminescence properties of tellurium(IV) complexes with pyridine and alkali metals (Cs, Rb) showed that the existence of distortions of the tellurium(IV) coordination polyhedron and the bathochromic shift of the A band facilitate efficient dissipation of electronic excitation energy in the complexes.

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Section: Introductionmentioning

confidence: 99%

Luminescent Properties of Complexes of Tellurium(IV) Halides with Pyridine (C5H5NH)2TeHal6 (Hal = Cl, Br)

Sedakova

Мирочник

2021

Opt. Spectrosc.

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“…Compounds of s 2 ions (Те 4+ , Sb 3+ , Bi 3+ , etc.) are efficient phosphors for luminescent lamps and for use as cathodoluminescent phosphors and X-ray phosphors [6][7][8]. Data on spectral-luminescent properties of tellurium(IV) complex compounds are few in number [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Structure and luminescent properties of complex compounds of tellurium(IV) with ammonium bases

Sedakova

Мирочник

2015

Opt. Spectrosc.

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Using tellurium(IV) complex compounds with outer-sphere ammonium cations as an example, we have studied the interrelation between their geometric structure and spectral-luminescent properties. In the series of compounds of tellurium(IV), which are characterized by the island octahedral coordination of Тe(IV) ions, the luminescence intensity has been found to depend on the degree of distortion of the coordination polyhedron of the Te(IV) ion, the position of the А band in diffuse reflection spectra, and the energy of the luminescence transition 3 P 1 → 1 S 0 of the tellurium(IV) ion. We have revealed that the considered Te(IV) complexes possess reversible thermochromic properties.

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“…Спектры возбуждения люминесценции (aλ lum = 450 nm) и люминесценции (b -λex = 700 nm) комплекса (C5H5NH) 2 TeCl 6 при 77 K. Переход3 …”

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Люминесцентные свойства комплексов галогенидов теллура (IV) с пиридином (C-=SUB=-5-=/SUB=-H-=SUB=-5-=/SUB=-NH)-=SUB=-2-=/SUB=-TeHaI-=SUB=-6-=/SUB=- (где HaI=Cl, Br)

Sedakova¹,

Мирочник²

2021

Оптика И Спектроскопия

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Изучены спектрально-люминесцентные свойства комплексных соединений галогенидов теллура (IV) с пиридином состава (C5H5NH)2TeHal6 (где Hal=Cl, Br). При искаженной островной октаэдрической координации иона Тe (IV) люминесценцией обладает только хлоридный комплекс (C5H5NH)2TeСl6 при 77 К. Проведен сравнительный анализ влияния геометрического строения координационного полиэдра теллура (IV) и положение A-полосы (переход 3P1->1S0) в спектрах люминесценции на люминесцентные свойства комплексов теллура (IV) c пиридином и щелочными металлами (Cs, Rb): наличие искажений координационного полиэдра теллура (IV) и батохромный сдвиг A-полосы способствует эффективной диссипации энергии электронного возбуждения в комплексах. Ключевые слова:

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Luminescence Studies on Lamp Phosphors

Cited by 22 publications

References 0 publications

Luminescent Properties of Complexes of Tellurium(IV) Halides with Pyridine (C5H5NH)2TeHal6 (Hal = Cl, Br)

Luminescent Properties of Complexes of Tellurium(IV) Halides with Pyridine (C5H5NH)2TeHal6 (Hal = Cl, Br)

Structure and luminescent properties of complex compounds of tellurium(IV) with ammonium bases

Люминесцентные свойства комплексов галогенидов теллура (IV) с пиридином (C-=SUB=-5-=/SUB=-H-=SUB=-5-=/SUB=-NH)-=SUB=-2-=/SUB=-TeHaI-=SUB=-6-=/SUB=- (где HaI=Cl, Br)

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