Synthesis and Characterization of Blue Organic Light Emitting Diodes base on Carbazole Derivatives

碩士 === 國立中山大學 === 光電工程學系研究所 === 106 === In this generation, organic light emitting diodes (OLEDs) have attracted much attention for application in flat-panel display. In full-color display, deep blue emission is very difficult to achieve because its large energy band gap. Many researchers have repor...

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Main Authors: Kai-jia Lin, 林楷家
Other Authors: Wen-Yao Huang
Format: Others
Language:zh-TW
Published: 2018
Online Access:http://ndltd.ncl.edu.tw/handle/ydm97j
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spelling ndltd-TW-106NSYS51240282019-10-31T05:22:28Z http://ndltd.ncl.edu.tw/handle/ydm97j Synthesis and Characterization of Blue Organic Light Emitting Diodes base on Carbazole Derivatives 咔唑衍生物之深藍光材料合成及特性研究 Kai-jia Lin 林楷家 碩士 國立中山大學 光電工程學系研究所 106 In this generation, organic light emitting diodes (OLEDs) have attracted much attention for application in flat-panel display. In full-color display, deep blue emission is very difficult to achieve because its large energy band gap. Many researchers have reported lots of small moleculars as excellent blue emission, such as anthracene, fluorene, and pyrene. Therefore, the synthesis of carbazole derivatives were extensively investigated. Carbazole derivatives possess electronic and charge-transport properties. Herein, four deep blue materials, namely NA、NB、NF、NP, were synthesized base on anthracene, bianthracene, spirobifluorene, pyrene. Four compounds introduced carbazole side group, improved charge-transport properties, and increased steric effect to avoid quenching in the structure. Molecular structures of the final compounds were confirmed by 1H NMR, mass spectrometry. The rigid molecular structures with side carbazole groups were beneficial to thermal, as manifest by their Td5% temperature of above 400°C. Optical absorption and PL spectra of materials were shown by solution and thin-film type. Finally, to determine the electroluminescent properties of fluorophores, non-doped device was fabricated. Device with the structure of ITO/NPB(40nm)/NA(30nm)/TPBi(30nm)/LiF(0.5nm) /Al(100nm) was fabricated. Wen-Yao Huang 黃文堯 2018 學位論文 ; thesis 78 zh-TW
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language zh-TW
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sources NDLTD
description 碩士 === 國立中山大學 === 光電工程學系研究所 === 106 === In this generation, organic light emitting diodes (OLEDs) have attracted much attention for application in flat-panel display. In full-color display, deep blue emission is very difficult to achieve because its large energy band gap. Many researchers have reported lots of small moleculars as excellent blue emission, such as anthracene, fluorene, and pyrene. Therefore, the synthesis of carbazole derivatives were extensively investigated. Carbazole derivatives possess electronic and charge-transport properties. Herein, four deep blue materials, namely NA、NB、NF、NP, were synthesized base on anthracene, bianthracene, spirobifluorene, pyrene. Four compounds introduced carbazole side group, improved charge-transport properties, and increased steric effect to avoid quenching in the structure. Molecular structures of the final compounds were confirmed by 1H NMR, mass spectrometry. The rigid molecular structures with side carbazole groups were beneficial to thermal, as manifest by their Td5% temperature of above 400°C. Optical absorption and PL spectra of materials were shown by solution and thin-film type. Finally, to determine the electroluminescent properties of fluorophores, non-doped device was fabricated. Device with the structure of ITO/NPB(40nm)/NA(30nm)/TPBi(30nm)/LiF(0.5nm) /Al(100nm) was fabricated.
author2 Wen-Yao Huang
author_facet Wen-Yao Huang
Kai-jia Lin
林楷家
author Kai-jia Lin
林楷家
spellingShingle Kai-jia Lin
林楷家
Synthesis and Characterization of Blue Organic Light Emitting Diodes base on Carbazole Derivatives
author_sort Kai-jia Lin
title Synthesis and Characterization of Blue Organic Light Emitting Diodes base on Carbazole Derivatives
title_short Synthesis and Characterization of Blue Organic Light Emitting Diodes base on Carbazole Derivatives
title_full Synthesis and Characterization of Blue Organic Light Emitting Diodes base on Carbazole Derivatives
title_fullStr Synthesis and Characterization of Blue Organic Light Emitting Diodes base on Carbazole Derivatives
title_full_unstemmed Synthesis and Characterization of Blue Organic Light Emitting Diodes base on Carbazole Derivatives
title_sort synthesis and characterization of blue organic light emitting diodes base on carbazole derivatives
publishDate 2018
url http://ndltd.ncl.edu.tw/handle/ydm97j
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