نتایج جستجو برای: photoluminescent
تعداد نتایج: 969 فیلتر نتایج به سال:
A new magnesium aluminophosphate JU92-300 with novel zeotype structure and 8-ring channels has been prepared by calcination of microporous JU-92 under 300 °C. Well dispersed C-dots are prepared by using JU92-300 as a support host. Such C-dots@zeolite materials exhibit excitation-dependent photoluminescent behavior, as well as tunable fluorescence with high quantum yields.
Dibutylated single-walled carbon nanotubes (Bu-SWNTs-Bu) with varying degrees of functionalization were prepared by two-step reductive alkylation and subsequent thermal treatment. A new photoluminescence peak at around 1240 nm was observed and increased drastically after the thermal treatment. The results indicate that thermally treated Bu-SWNTs-Bu are promising NIR photoluminescent materials.
A novel mixed-valent Ag(I)/Ag(II) coordination polymer {[Ag(I)(2)Ag(II)(0.5)(SO(4))(HSO(4))(pyz)(2.5)]·H(2)O}(n) (1, pyz = pyrazine) was synthesized and characterized. The results show it presents semiconducting and photoluminescent properties.
Reversible piezochromic luminescence and aggregation induced emission properties of 4,4'-((Z,Z)-1,4-diphenylbuta-1,3-diene-1,4-diyl)dibenzoic acid are reported. The photoluminescent color of it changes from blue to yellow-green upon grinding, which can be restored upon exposure to a solvent. Intermolecular hydrogen bonding plays a key role in the altered emission.
Photoluminescent strips forming a Low Location Lighting (LLL) system are the primary method for marking escape routes on passenger ships. The LLL can be built as self-luminous (powered by electricity) or made series of photoluminescent materials, which glow and indicate route after loss basic emergency lighting. To ensure correct visual guidance, these must installed at specific locations in pa...
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