Research output: Contribution to journal › Article › peer-review
The influence of low-temperature silver-ion exchange on the spectral-luminescent properties of fluorophosphate glasses doped with PbSe. / Kolobkova, E. V.; Kuznetsova, M. S.; Nikonorov, N. V.
In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 123, No. 3, 01.09.2017, p. 375-382.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - The influence of low-temperature silver-ion exchange on the spectral-luminescent properties of fluorophosphate glasses doped with PbSe
AU - Kolobkova, E. V.
AU - Kuznetsova, M. S.
AU - Nikonorov, N. V.
PY - 2017/9/1
Y1 - 2017/9/1
N2 - Changes in the absorption and luminescence spectra of fluorophosphate glasses doped with PbSe caused by low-temperature Ag+–Na+ ion exchange are considered. It is found that the silver distribution gradient in a near-surface layer about 16 μm thick leads to two different processes of interaction between metal and semiconductor nanoparticles. PbSe molecular clusters and quantum dots more efficiently grow in deep layers with a low silver concentration. The near-surface glass layers with a high silver concentration exhibit formation of Ag metal nanoparticles, on the surface of which interaction with PbSe molecular clusters leads to the formation of Ag–Se–Pb bonds, which transform into Ag2Se layers in the process of heat treatment. The appearance of the new phase is confirmed by X-ray diffraction.
AB - Changes in the absorption and luminescence spectra of fluorophosphate glasses doped with PbSe caused by low-temperature Ag+–Na+ ion exchange are considered. It is found that the silver distribution gradient in a near-surface layer about 16 μm thick leads to two different processes of interaction between metal and semiconductor nanoparticles. PbSe molecular clusters and quantum dots more efficiently grow in deep layers with a low silver concentration. The near-surface glass layers with a high silver concentration exhibit formation of Ag metal nanoparticles, on the surface of which interaction with PbSe molecular clusters leads to the formation of Ag–Se–Pb bonds, which transform into Ag2Se layers in the process of heat treatment. The appearance of the new phase is confirmed by X-ray diffraction.
UR - http://www.scopus.com/inward/record.url?scp=85029747610&partnerID=8YFLogxK
U2 - 10.1134/S0030400X1709017X
DO - 10.1134/S0030400X1709017X
M3 - Article
AN - SCOPUS:85029747610
VL - 123
SP - 375
EP - 382
JO - OPTICS AND SPECTROSCOPY
JF - OPTICS AND SPECTROSCOPY
SN - 0030-400X
IS - 3
ER -
ID: 9064822