Iptycene Metallafluorene의 합성과 다공성 실리콘의 발광효율에 관한 연구
- Issued Date
- 2011
- Abstract
- New functionalized Metallafluorene have been synthesized and their optical characterizations are investigated. Metallafluorene unit has been interested, since metallafluorene has a unique optical and electronic properties. Here we report the synthesis of new type of photoluminescent metallafluorene. New metallafluorene have been characterized by NMR, FT-IR, UV-vis absorption spectroscopy and X-ray single crystallography. Their optical characteristics have been also investigated using photoluminescence spectroscopy. These compounds are of interest as light emissive layers, as they possess relatively low LUMO energy levels while maintaining high HOMO-LUMO optical gaps. Dierential scanning calorimetry measurements reveal that these Metallafluorene compounds have advantages of ther-mal stability above room temperature regions. Organic light-emitting diodes have been fabricated using thermal evaporation technique which emit blue light with an excellent diode behavior under the forward bias. 1,1-Dichlorosilafluorenes and 1,1-dihydrosilafluorenes have been synthesized and their electronic and photonic behaviors were investigated. These copolymers were characterized by 1H- and 13C-NMR spectroscopies. Photoluminescence efficiencies of these copolymers were measured and compared with their precursor.
- Alternative Title
- Synthesis of Iptycene Metallafluorene and Invesigation of Photoluminescence Efficiency of Porous Silicon
- Alternative Author(s)
- Kim, Hee-Choel
- Affiliation
- 조선대학교 화학과
- Department
- 일반대학원 화학과
- Advisor
- 손홍래
- Awarded Date
- 2012-02
- Table Of Contents
- TABLE OF CONTENTS
TABLE OF CONTENTS
I
LIST OF SYMBOLS AND ABBREVIATIONS
Ⅳ
LIST OF TABLES
Ⅵ
LIST OF SCHEMES
Ⅶ
LIST OF FIGURES
Ⅷ
Synthesis of Iptycene Metallafluorene Polymers through Catalytic Dehydrocoupling Condensation and Investigation of Photoluminescence Efficiency of Porous Silicon
Chapter One. Synthesis and Optical Characterization of Triptycene Metallafluorene and Metallafluorene
Abstract............................................................................................................
2
1.
Introduction......................................................................................................
4
2.
Experimental Section......................................................................................
8
2.1.
Generals...........................................................................................................
8
2.2.
Syntheses.........................................................................................................
9
2.2.1.
Preparation of 1,2,4,5-tetraboromobenzene 1...............................................
9
2.2.2
Preparation of 2,3-dibromotriptycene 2........................................................
9
2.2.3.
Preparation of 2,2-dibromobitriptycene 3.....................................................
10
2.2.4.
Preparation of 1,1-methylhydro-4,5,8,9,-bis(triptycene)silafluorene 4.........
11
2.2.5.
Preparation of 1,1-dimethyl-4,5,8,9,-bis(triptycene)silafluorene 5...............
12
2.2.6.
Preparation of 1,1-diphenyl-4,5,8,9-bis(triptycene)sillafluorene 6...............
12
3.
Results and Discussion...................................................................................
13
3.1.
Research of Sensor and Photoluminescence materials................................
13
3.2.
Synthesis and Characterization of Triptycene Metallafluorene...................
14
3.3.
Synthesis and Characterization of Metallafluorene......................................
23
4.
Conclusions......................................................................................................
24
5.
References........................................................................................................
25
Chapter Two. Investigation of Photoluminescence efficiency of n-type porous silicon by controlling of etching times and applied current densities
Abstract............................................................................................................
29
1.
Introduction......................................................................................................
31
2.
Experimental procedure..................................................................................
32
2.1.
Etching set-up for porous silicon surface...................................................
32
2.2.
Instrumentation and data acquisition...............................................................
33
3.
Results and Discussion...................................................................................
34
3.1.
Surface characterization of porous silicon...................................................
34
3.2.
Photoluminescence properties of porous silicon..........................................
39
4.
Conclusion......................................................................................................
42
5.
References........................................................................................................
43
- Degree
- Master
- Publisher
- 조선대학교 화학과
- Citation
- 김희철. (2011). Iptycene Metallafluorene의 합성과 다공성 실리콘의 발광효율에 관한 연구.
- Type
- Dissertation
- URI
- https://oak.chosun.ac.kr/handle/2020.oak/9262
http://chosun.dcollection.net/common/orgView/200000256578
- Appears in Collections:
- General Graduate School > 3. Theses(Master)
- Files in This Item:
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