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Novel Visible Emission and Mechanism Investigation from PbS Nanoclusters‐Doped Borosilicate Glasses
Author(s) -
Fan Shaohua,
Wu Guobo,
Zhang Yuanhao,
Chai Guanqi,
Ma Zhijun,
Qiu Jianrong,
Dong Guoping
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12660
Subject(s) - photoluminescence , borosilicate glass , nanoclusters , materials science , doping , absorption (acoustics) , visible spectrum , emission spectrum , nanosecond , absorption spectroscopy , analytical chemistry (journal) , optoelectronics , nanotechnology , spectral line , optics , chemistry , laser , composite material , physics , chromatography , astronomy
Borosilicate glasses doped with PbO , ZnS , or PbS were fabricated to investigate the visible emissions (one located at 370 nm and another at 550 nm) observed in the PbO and ZnS codoped glass. Several series of glassy systems were designed to investigate the mechanism of above visible emissions. The absorption, photoluminescence ( PL ), photoluminescence excitation ( PLE ) spectra, and lifetime measurements were used to characterize all the emissions. The nanosecond level lifetimes for all the samples' 370 nm emissions ascribed the 370 nm emission to the glass defects. Measured lifetimes for the PbS quantum dots ( QD s) in the glasses with an emission in the near‐infrared region which was about 8 μs was close to the values for the yellow emission, which confirmed the formation of PbS nanoclusters in the codoped glass was responsible for the yellow emission.