Highly fluorescent xerogels with entrapped carbon dots for organic scintillators

被引：17

作者：

Quaranta, A. ^{[1
,2
]}

Carturan, S. ^{[2
,3
]}

Campagnaro, A. ^{[1
,2
]}

Dalla Palma, M. ^{[1
,2
]}

Giarola, M. ^{[4
]}

Daldosso, N. ^{[4
]}

Maggioni, G. ^{[2
,3
]}

Mariotto, G. ^{[4
]}

机构：

[1] Univ Trento, Dept Ind Engn, I-38123 Trento, Italy

[2] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, PD, Italy

[3] Univ Padua, Dept Phys & Astron Galileo Galilei, I-35131 Padua, Italy

[4] Univ Verona, Dept Informat, I-37134 Verona, Italy

来源：

THIN SOLID FILMS | 2014年 / 553卷

关键词：

Silica gel; Xerogel; Carbon quantum dots; Functionalization; FT-IR; Raman; Luminescence; Energy transfer; SOL-GEL; PHOTOLUMINESCENCE; SILANE;

D O I：

10.1016/j.tsf.2013.10.107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Organically modified silicate thin film and bulk samples were prepared using [3-(2-aminoethylamino)propyl]trimethoxysilane (AEAP-TMOS) as precursor with the addition of different amounts of AEAP-TMOS functionalized C-dots, prepared by reaction of AEAP-TMOS and citric acid at high temperature. The synthesis of surface functionalized C-dots was followed by Fourier Transform Infrared (FTIR) spectroscopy, and the C-dots optical properties were characterized by optical absorption and UV-vis fluorescence. Thin xerogel films and bulk samples were studied by FTIR, Raman and fluorescence spectroscopy. Intense blue-green emission was observed by UV excitation of functionalized C-dots. Carbon quantum dot (CQD) luminescence was preserved also in the xerogel matrices, and the energy transfer from the matrix to CQDs, which is a key characteristic for scintillation detectors, was investigated in the two systems. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：188 / 192

页数：5

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