Luminescence of induced silver centers in NaCl-Ag and NaBr-Ag phosphors

Parfianovich, I. A.; Penzina, E. E.; Penzin, Yu. G.

doi:10.1007/bf00838597

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…[17]. Parfianovich et al [18] observed induced bands at "B" (peaking at 278 nm), "C" (310 nm), "D" (335 nm) and "E" (400 nm) in X-ray irradiated NaCl:Ag. The peak position of each band is in good agreement with the decomposed results above.…”

Section: Resultsmentioning

confidence: 99%

Assignments and optical properties of X-ray-induced colour centres in blue and orange radiophotoluminescent silver-activated glasses

Zheng

Kurobori

2011

Journal of Luminescence

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We have systematically investigated the origin and optical properties of the X-ray-induced colour centres based on the blue and red radiophotoluminescence (RPL) in a silver-activated phosphate glass. The induced-absorption band was decomposed into six Gaussian bands on the basis of its strong analogy with silver-activated sodium chloride. We have ascribed these bands to Ag 0 , Ag 2+ , Ag 2 + and other silver ion species by means of optical and thermal measurements such as colour centre formation and dissolusion by highly successive femtosecond-pulse irradiation, excited-state lifetime and thermal annealing characteristics.The data confirmed that the blue RPL at 450 nm could be attributed to the 270 and 345 nm bands due to the Ag 2 + and Ag 0 centres, respectively, and that the orange RPL at 560 nm was associated with the 308 nm band due to the Ag 2+ centres.

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Section: Resultsmentioning

confidence: 99%

Assignments and optical properties of X-ray-induced colour centres in blue and orange radiophotoluminescent silver-activated glasses

Zheng

Kurobori

2011

Journal of Luminescence

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“…These new bands are respectively called the "A", "B", "C", "D" and "E" bands [5]. Parfianovich et al [6] observed radiation-induced bands at "B" (peaking at 276 nm), "C" (305 nm), "D" (335 nm) and "E" (400 nm). The peak positions of each band are in good agreement with those of the above decomposed results.…”

Section: Peak Fitting Analysismentioning

confidence: 99%

The role of silver in the radiophotoluminescent properties in silver-activated phosphate glass and sodium chloride crystal

Kurobori

Zheng

Miyamoto³

et al. 2010

Optical Materials

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We have systematically investigated the X-ray-induced radiophotoluminescence (RPL) bands in a silver-activated phosphate glass (PG:Ag), and we have ascribed these bands to Ag 0 , Ag 2+and Ag 2 + centres, using optical characterisation such as absorption, excitation, emission and lifetime measurements. The absorption spectrum of PG:Ag irradiated with X-rays was decomposed into six Gaussian bands on the basis of its strong analogy with irradiated silver-activated sodium chloride (NaCl:Ag). We confirmed that blue emission peaking at 450 nm was connected with the 270 and 345 nm bands of the excitation spectrum, while orange emission peaking at 560 nm was associated with the 308 nm excitation band. Each band of the excitation spectrum was in turn attributed to an Ag 2 + , Ag 0 or Ag 2+ centre by analogy with the RPL of NaCl:Ag. The excited-state lifetimes for each emissive process were also determined for different X-ray doses. In conclusion, we determined that both blue and orange emissions result from radiation-induced (rather than intrinsic) properties in the range of 1.22 -24.5 Gy.

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Luminescence of induced silver centers in NaCl-Ag and NaBr-Ag phosphors

Cited by 2 publications

References 4 publications

Assignments and optical properties of X-ray-induced colour centres in blue and orange radiophotoluminescent silver-activated glasses

Assignments and optical properties of X-ray-induced colour centres in blue and orange radiophotoluminescent silver-activated glasses

The role of silver in the radiophotoluminescent properties in silver-activated phosphate glass and sodium chloride crystal

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