Iptycene Silafluorene 유도체 및 광결정 반도체의 합성과 응용
- Issued Date
- 2011
- Abstract
- The synthesis, spectroscopic characterization, and fluorescence quenching efficiencies of Metallafluorene is reported. The synthesized compounds were characterized by 1H and 13C NMR spectroscopy. Absorption and emission spectra for these compounds were obtained by using UV-Visible and fluorescence spectroscopy in solution. Their emission behaviors and quantum yield for these compounds were investigated both in the solid and colloid state. Our results indicated that both compounds were used as the chemosensor to detect nitroamines, (1,3,5-trinitroperhydro -1,3,5-triazine, RDX), nitroaromatics (1,3,5-trinitrotoluene, TNT), and nitrate esters (PETN). The detection efficiency results shown that both compounds were served as the chemosensors and other metallafluorene derivatives were synthesized and their photonic behaviour were investigated.
In addition, the reflection band characteristics of distributed Bragg reflector porous silicon (PSi) and the effect of an etching time for the formation of Bragg photonic structure were investigated. DBR PSi having the photonic structure of a Bragg filter was generated by applying a computer generated square current density waveform. The multilayered photonic crystals of DBR PSi exhibited the reflection of a specific wavelength with high reflectivity in the optical reflectivity spectrum. This reflective wavelength was controlled by tuning of etching time and appeared anywhere in the visible range depending on the square waveform. These results demonstrate for the fabrication of specific reflectors or filters in full color. The effect of square current density waveform for the formation of DBR PSi was investigated. The reflection band of DBR PSi shifted to longer wavelength by about 150 nm as the etching time of low current increased. The reflection band characteristics of 16 DBR PSi samples according to the change of square current density waveform were investigated. DBR PSi exhibited a linear dependence between the reflection wavelengths and the square current density profile.
- Alternative Title
- Synthesis and Application of Iptycene Silafluorene Derivatives and Photonic Crystals of Semiconductor
- Alternative Author(s)
- Hwang Min Woo
- Affiliation
- 조선대학교 화학과
- Department
- 일반대학원 화학과
- Advisor
- 손홍래
- Awarded Date
- 2012-02
- Table Of Contents
- Chapter One. Synthesis and Characterization of Bis(triptycene)metallafluorene Derivatives for Explosive Sensor
1.
Introduction......................................................................................................
4
2.
Experimental...................................................................................................
6
2.1.
Generals...........................................................................................................
6
2.2.
All analysis material preparation..................................................................
7
2.2.1.
Fabrication of RDX Solution 10ppm...........................................................
7
2.2.2
Fabrication of PETN Solution 10ppm..........................................................
7
2.2.3.
Fabrication of TNT Solution 10ppm............................................................
7
2.3
Synthesis..........................................................................................................
8
2.3.1.
Synthesis of 1,2,4,5-tetrabromobenzene 1 ..................................................
8
2.3.2.
Synthesis of 2,3-dibromotriptycene 2 .........................................................
8
2.3.3.
Synthesis of 2,2-dibromobitriptycene 3 ......................................................
9
2.3.4.
Synthesis of 1,1-diphenyl-4,5,8,9-bis(triptycene)silafluorene 4 .................
9
2.3.5.
Synthesis of 1,1-dimethyl-4,5,8,9-bis(triptycene)silafluorene 5 .................
10
2.3.6.
Synthesis of 1,1-methylhydro-4,5,8,9-bis(triptycene)silafluorene 6 .......
11
2.3.7.
Synthesis of 1,1-dihydro-4,5,8,9-bis(triptycene)silafluorene 7 ...................
12
2.3.8.
Synthesis of 2,2-dibromobiphenyl 8 ...........................................................
13
2.3.9.
Synthesis of 1,1-methylhydro-1-silafluorene 9 ...........................................
14
2.3.10.
Synthesis of 1,1-dimethyl-1-silafluorene 10 ...............................................
14
3.
Results and Discussion...................................................................................
15
3.1.
Research of Sensor and Photoluminescence materials................................
15
3.2.
Synthesis and Characterization of Triptycene Metallafluorene...................
16
3.3.
Quenching mechanism of Photoluminescence materials.............................
28
3.4.
Detection of Nitro compounds based on Triptycene metallafluorene.......
29
3.4.1.
Dectection of RDX based on compound 4 ...............................................
30
3.4.2.
Dectection of PETN based on compound 4 .............................................
31
3.4.3.
Dectection of TNT based on compound 4 .............................................
32
3.4.4.
Dectection of PA based on compound 4 ................................................
33
3.4.5.
Dectection of RDX based on compound 5 ...............................................
34
3.4.6.
Dectection of PETN based on compound 5 .............................................
35
3.4.7.
Dectection of TNT based on compound 5 .............................................
36
3.4.8.
Dectection of PA based on compound 5 ................................................
37
3.4.9.
Dectection of RDX based on compound 6 ...............................................
38
3.4.10.
Dectection of PETN based on compound 6 .............................................
39
3.4.11.
Dectection of TNT based on compound 6 .............................................
40
3.4.12.
Dectection of PA based on compound 6 ................................................
41
3.4.13.
Dectection of RDX based on compound 7 ...............................................
42
3.4.14.
Dectection of PETN based on compound 7 .............................................
43
3.4.15.
Dectection of TNT based on compound 7 .............................................
44
3.4.16.
Dectection of PA based on compound 7 ................................................
45
3.4.17.
Dectection of TNT based on compound 9 ................................................
46
3.4.18.
Dectection of PA based on compound 9 ................................................
47
4.
Conclusion.......................................................................................................
48
5.
References.......................................................................................................
49
6.
Spectrum..........................................................................................................
51
6.1.
1H NMR, 13C NMR spectroscopy................................................................
51
Chapter Two. Fabrication and Optical Characterization of
Distributed Bragg Reflector Porous Silicon
1.
Introduction......................................................................................................
71
2.
Experimental Details.......................................................................................
73
2.1.
Preparation of DBR PSi samples.................................................................
73
2.2.
Instruments and Data Acquisitions..............................................................
73
3.
Resilts and Discussion...................................................................................
73
3.1.
Effect of Etching Time..................................................................................
73
4.
Conclusion.......................................................................................................
77
5.
References........................................................................................................
78
- Degree
- Master
- Publisher
- 조선대학교 화학과
- Citation
- 황민우. (2011). Iptycene Silafluorene 유도체 및 광결정 반도체의 합성과 응용.
- Type
- Dissertation
- URI
- https://oak.chosun.ac.kr/handle/2020.oak/9263
http://chosun.dcollection.net/common/orgView/200000256579
- Appears in Collections:
- General Graduate School > 3. Theses(Master)
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