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Strong Ultra‐Broadband Near‐Infrared Photoluminescence from Bismuth‐Embedded Zeolites and Their Derivatives
Author(s) -
Sun HongTao,
Hosokawa Akinobu,
Miwa Yuji,
Shimaoka Fumiaki,
Fujii Minoru,
Mizuhata Minoru,
Hayashi Shinji,
Deki Shigehito
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200900573
Subject(s) - bismuth , photoluminescence , materials science , infrared , broadband , luminescence , molecule , optoelectronics , nanotechnology , optics , organic chemistry , chemistry , physics , metallurgy
Zeolites with embedded bismuth compounds display strong, air‐stable, long‐lived, ultrabroadband, and tunable near‐infrared photoluminescence (see picture). Bismuth ions not only act as luminescence‐active centers, but also as blocks for selectively closing the “in–out windows” of water molecules. Bismuth active centers can be sealed in a low‐vibrational environment by bismuth agglomerates even when the sample still contains a large amount of water.