Strong visible photoluminescence of TEEDPS-modified silica MCM-41 materials

H. G. Chen; J. L. Shi; H. R. Chen; Y. S. Li; Z. L. Hua; D. S. Yan

doi:10.1007/s00340-003-1251-2

Strong visible photoluminescence of TEEDPS-modified silica MCM-41 materials

H. G. Chen
, J. L. Shi^*
, H. R. Chen
, Y. S. Li
, Z. L. Hua
, D. S. Yan

^*Corresponding author for this work

CAS - Shanghai Institute of Ceramics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The photoluminescence (PL) of mesoporous silica MCM-41 modified with triethoxy-3-ethylenediaminepropylsilane (TEEDPS) has been investigated using UV-Vis fluorescence and absorption spectroscopy methods and thermogravimetry. Results suggest that the TEEDPS-modified MCM-41 has a greatly enhanced (by 20 times) PL intensity at 420 nm relative to that of TEEDPS, and this enhanced PL still remains even after post heat treatment at 180°C under vacuum (yielding a sample MTV). Meanwhile, a strong PL band at 450 nm appeared in the sample MTV when excited at 380 nm. The TEEDPS-modified material could be partly oxidized at 180°C in air (yielding a sample MTA); therefore obvious absorption was found up to about 600 nm. The interaction between this absorption and the vacancy-related emission resulted in the maximum of the emission bands of the sample MTA at around 515 nm when excited at 440 nm.

Original language	English
Pages (from-to)	89-91
Number of pages	3
Journal	Applied Physics B: Lasers and Optics
Volume	77
Issue number	1
DOIs	https://doi.org/10.1007/s00340-003-1251-2
State	Published - Aug 2003
Externally published	Yes

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title = "Strong visible photoluminescence of TEEDPS-modified silica MCM-41 materials",

abstract = "The photoluminescence (PL) of mesoporous silica MCM-41 modified with triethoxy-3-ethylenediaminepropylsilane (TEEDPS) has been investigated using UV-Vis fluorescence and absorption spectroscopy methods and thermogravimetry. Results suggest that the TEEDPS-modified MCM-41 has a greatly enhanced (by 20 times) PL intensity at 420 nm relative to that of TEEDPS, and this enhanced PL still remains even after post heat treatment at 180°C under vacuum (yielding a sample MTV). Meanwhile, a strong PL band at 450 nm appeared in the sample MTV when excited at 380 nm. The TEEDPS-modified material could be partly oxidized at 180°C in air (yielding a sample MTA); therefore obvious absorption was found up to about 600 nm. The interaction between this absorption and the vacancy-related emission resulted in the maximum of the emission bands of the sample MTA at around 515 nm when excited at 440 nm.",

author = "Chen, \{H. G.\} and Shi, \{J. L.\} and Chen, \{H. R.\} and Li, \{Y. S.\} and Hua, \{Z. L.\} and Yan, \{D. S.\}",

year = "2003",

month = aug,

doi = "10.1007/s00340-003-1251-2",

language = "英语",

volume = "77",

pages = "89--91",

journal = "Applied Physics B: Lasers and Optics",

issn = "0946-2171",

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}

TY - JOUR

T1 - Strong visible photoluminescence of TEEDPS-modified silica MCM-41 materials

AU - Chen, H. G.

AU - Shi, J. L.

AU - Chen, H. R.

AU - Li, Y. S.

AU - Hua, Z. L.

AU - Yan, D. S.

PY - 2003/8

Y1 - 2003/8

N2 - The photoluminescence (PL) of mesoporous silica MCM-41 modified with triethoxy-3-ethylenediaminepropylsilane (TEEDPS) has been investigated using UV-Vis fluorescence and absorption spectroscopy methods and thermogravimetry. Results suggest that the TEEDPS-modified MCM-41 has a greatly enhanced (by 20 times) PL intensity at 420 nm relative to that of TEEDPS, and this enhanced PL still remains even after post heat treatment at 180°C under vacuum (yielding a sample MTV). Meanwhile, a strong PL band at 450 nm appeared in the sample MTV when excited at 380 nm. The TEEDPS-modified material could be partly oxidized at 180°C in air (yielding a sample MTA); therefore obvious absorption was found up to about 600 nm. The interaction between this absorption and the vacancy-related emission resulted in the maximum of the emission bands of the sample MTA at around 515 nm when excited at 440 nm.

AB - The photoluminescence (PL) of mesoporous silica MCM-41 modified with triethoxy-3-ethylenediaminepropylsilane (TEEDPS) has been investigated using UV-Vis fluorescence and absorption spectroscopy methods and thermogravimetry. Results suggest that the TEEDPS-modified MCM-41 has a greatly enhanced (by 20 times) PL intensity at 420 nm relative to that of TEEDPS, and this enhanced PL still remains even after post heat treatment at 180°C under vacuum (yielding a sample MTV). Meanwhile, a strong PL band at 450 nm appeared in the sample MTV when excited at 380 nm. The TEEDPS-modified material could be partly oxidized at 180°C in air (yielding a sample MTA); therefore obvious absorption was found up to about 600 nm. The interaction between this absorption and the vacancy-related emission resulted in the maximum of the emission bands of the sample MTA at around 515 nm when excited at 440 nm.

UR - https://www.scopus.com/pages/publications/0141680761

U2 - 10.1007/s00340-003-1251-2

DO - 10.1007/s00340-003-1251-2

M3 - 文章

AN - SCOPUS:0141680761

SN - 0946-2171

VL - 77

SP - 89

EP - 91

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

IS - 1

ER -

Strong visible photoluminescence of TEEDPS-modified silica MCM-41 materials

Abstract

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