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Braveenth R, Bae HW, Nguyen QPB, Ko HM, Lee CH, Kim HJ, Kwon JH, Chai KY. Spirobifluorene Core-Based Novel Hole Transporting Materials for Red Phosphorescence OLEDs. Molecules 2017; 22:molecules22030464. [PMID: 28335435 PMCID: PMC6155350 DOI: 10.3390/molecules22030464] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/07/2017] [Accepted: 03/12/2017] [Indexed: 11/18/2022] Open
Abstract
Two new hole transporting materials, named HTM 1A and HTM 1B, were designed and synthesized in significant yields using the well-known Buchwald Hartwig and Suzuki cross- coupling reactions. Both materials showed higher decomposition temperatures (over 450 °C) at 5% weight reduction and HTM 1B exhibited a higher glass transition temperature of 180 °C. Red phosphorescence-based OLED devices were fabricated to analyze the device performances compared to Spiro-NPB and NPB as reference hole transporting materials. Devices consist of hole transporting material as HTM 1B showed better maximum current and power efficiencies of 16.16 cd/A and 11.17 lm/W, at the same time it revealed an improved external quantum efficiency of 13.64%. This efficiency is considerably higher than that of Spiro-NPB and NPB-based reference devices.
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Affiliation(s)
- Ramanaskanda Braveenth
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Chonbuk, Iksan 570-749, Korea.
| | - Hyeong Woo Bae
- Department of Information Display, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, Korea.
| | - Quynh Pham Bao Nguyen
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Chonbuk, Iksan 570-749, Korea.
| | - Haye Min Ko
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Chonbuk, Iksan 570-749, Korea.
| | - Choong Hun Lee
- Division of Microelectronics and Display Technology, Wonkwang University, Iksan 570-749, Korea.
- Solar Cell Research Institute, Next Generation Industrial Radiation Technology RIC, Wonkwang University, Iksan 570-749, Korea.
- Department of Carbon Fusion Engineering, Wonkwang University, Iksan 570-749, Korea.
| | - Hyeong Jun Kim
- Division of Microelectronics and Display Technology, Wonkwang University, Iksan 570-749, Korea.
| | - Jang Hyuk Kwon
- Department of Information Display, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, Korea.
| | - Kyu Yun Chai
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Chonbuk, Iksan 570-749, Korea.
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Fan JG, Kim MJ, Nguyen QPB, Braveenth R, Ko HM, Han JH, Kim GW, Kwon JH, Chai KY. Synthesis and Characterization of Carbazole Core-based Small Molecular-Hole-transporting Materials for Red Phosphorescent OLEDs. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10960] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jin Guo Fan
- Division of Bio-Nanochemistry; College of Natural Sciences, Wonkwang University; Iksan City Chonbuk 570-749 Republic of Korea
| | - Mi Jin Kim
- Division of Bio-Nanochemistry; College of Natural Sciences, Wonkwang University; Iksan City Chonbuk 570-749 Republic of Korea
| | - Quynh Pham Bao Nguyen
- Division of Bio-Nanochemistry; College of Natural Sciences, Wonkwang University; Iksan City Chonbuk 570-749 Republic of Korea
| | - Ramanaskanda Braveenth
- Division of Bio-Nanochemistry; College of Natural Sciences, Wonkwang University; Iksan City Chonbuk 570-749 Republic of Korea
| | - Haye Min Ko
- Division of Bio-Nanochemistry; College of Natural Sciences, Wonkwang University; Iksan City Chonbuk 570-749 Republic of Korea
| | - Ji-Hun Han
- Division of Bio-Nanochemistry; College of Natural Sciences, Wonkwang University; Iksan City Chonbuk 570-749 Republic of Korea
| | - Gyeong Woo Kim
- Department of Information Display; Kyung Hee University; Seoul 130-701 Republic of Korea
| | - Jang Hyuk Kwon
- Department of Information Display; Kyung Hee University; Seoul 130-701 Republic of Korea
| | - Kyu Yun Chai
- Division of Bio-Nanochemistry; College of Natural Sciences, Wonkwang University; Iksan City Chonbuk 570-749 Republic of Korea
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Kim BM, Nguyen QPB, Fan JG, Kim MJ, Braveenth R, Kim GW, Kwon JH, Chai KY. Novel Star-shaped Hole-transporting Materials Based on Triphenylamine Cores End-capped with Carbazole and Triarylamine Derivatives for use in OLEDs. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10246] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Bo Mi Kim
- Division of Bio-Nanochemistry, College of Natural Sciences; Wonkwang University; Chonbuk 570-749 Republic of Korea
| | - Quynh Pham Bao Nguyen
- Division of Bio-Nanochemistry, College of Natural Sciences; Wonkwang University; Chonbuk 570-749 Republic of Korea
| | - Jin Guo Fan
- Division of Bio-Nanochemistry, College of Natural Sciences; Wonkwang University; Chonbuk 570-749 Republic of Korea
| | - Mi Jin Kim
- Division of Bio-Nanochemistry, College of Natural Sciences; Wonkwang University; Chonbuk 570-749 Republic of Korea
| | - Ramanaskanda Braveenth
- Division of Bio-Nanochemistry, College of Natural Sciences; Wonkwang University; Chonbuk 570-749 Republic of Korea
| | - Gyeong Woo Kim
- Department of Information Display; Kyung Hee University; Seoul 130-701 Republic of Korea
| | - Jang Hyuk Kwon
- Department of Information Display; Kyung Hee University; Seoul 130-701 Republic of Korea
| | - Kyu Yun Chai
- Division of Bio-Nanochemistry, College of Natural Sciences; Wonkwang University; Chonbuk 570-749 Republic of Korea
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Nguyen QPB, Baek SJ, Kim MJ, Shin NY, Kim GW, Choe DC, Kwon JH, Chai KY. Novel hole transporting materials based on 4-(9H-carbazol-9-yl)triphenylamine derivatives for OLEDs. Molecules 2014; 19:14247-56. [PMID: 25211005 PMCID: PMC6271969 DOI: 10.3390/molecules190914247] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/02/2014] [Accepted: 09/04/2014] [Indexed: 11/16/2022] Open
Abstract
During the past few years, organic light emitting diodes (OLEDs) have been increasingly studied due to their emerging applicability. However, some of the properties of existing OLEDs could be improved, such as their overall efficiency and durability; these aspects have been addressed in the current study. A series of novel hole-transporting materials (HTMs) 3a–c based on 4-(9H-carbazol-9-yl)triphenylamine conjugated with different carbazole or triphenylamine derivatives have been readily synthesized by Suzuki coupling reactions. The resulting compounds showed good thermal stabilities with high glass transition temperatures between 148 and 165 °C. The introduction of HTMs 3b and 3c into the standard devices ITO/HATCN/NPB/HTMs 3 (indium tin oxide/dipyrazino(2,3-f:2',3'-h)quinoxaline 2,3,6,7,10,11-hexacarbonitrile/N,N'-bis(naphthalen-1-yl)-N,N'-bis(phenyl)-benzidine/HTMs)/CBP (4,4'-Bis(N-carbazolyl)-1,1'-biphenyl): 5% Ir(ppy)3/Bphen/LiF/Al (tris[2-phenylpyridinato-C2,N]iridium(III)/4,7-diphenyl-1,10-phenanthroline/LiF/Al) resulted in significantly enhanced current, power, and external quantum efficiencies (EQE) as compared to the reference device without any layers of HTMs 3.
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Affiliation(s)
- Quynh Pham Bao Nguyen
- The Division of Bio-Nanochemistry, College of Natural Sciences and the Institute for Basic Science, Wonkwang University, Iksan City, Chonbuk 570-749, Korea
| | - Sueng Ji Baek
- The Division of Bio-Nanochemistry, College of Natural Sciences and the Institute for Basic Science, Wonkwang University, Iksan City, Chonbuk 570-749, Korea
| | - Mi Jin Kim
- The Division of Bio-Nanochemistry, College of Natural Sciences and the Institute for Basic Science, Wonkwang University, Iksan City, Chonbuk 570-749, Korea
| | - Na Young Shin
- Venture Building, #824, Palbokdong 2-ga, Deokjin-gu, Jeonju, Chonbuk 561-844, Korea
| | - Gyeong Woo Kim
- Department of Information Display, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, Korea
| | - Dong Cheol Choe
- Department of Information Display, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, Korea
| | - Jang Hyuk Kwon
- Department of Information Display, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, Korea.
| | - Kyu Yun Chai
- The Division of Bio-Nanochemistry, College of Natural Sciences and the Institute for Basic Science, Wonkwang University, Iksan City, Chonbuk 570-749, Korea.
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Nguyen QPB, Hwang HM, Song MS, Song HJ, Kim GH, Kwon JH, Shim NY, Chai KY. Synthesis and Electroluminescent Properties of OLED Green Dopants Based on BODIPY Derivatives. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.4.1247] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Nguyen QPB, Kim BM, Song MS, Yoon KH, Chai KY. Inhibitory Effects of N-Amido-3,3-difluoropyrrolidin-2-ones on LPS-induced Nitric Oxide Production in RAW 264.7 Macrophages. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.1.313] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Song MS, Nguyen QPB, Song CH, Lee D, Chai KY. Synthesis of some green dopants for OLEDs based on arylamine 2,3-disubstituted bithiophene derivatives. Molecules 2013; 18:14033-41. [PMID: 24232738 PMCID: PMC6270272 DOI: 10.3390/molecules181114033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 11/04/2013] [Accepted: 11/07/2013] [Indexed: 11/16/2022] Open
Abstract
A series of green dopants based on 2,2-diphenylvinyl end-capped bithiophene and three different arylamine moieties (9-phenylcarbazole, triphenylamine, and N,N’-di-(p-tolyl)benzeneamine) were successfully synthesized by the Suzuki and Wittig coupling reactions. The photophysical properties of these compounds are reported. The strongest PL emitting compound with the 9-phenylcarbazole moiety has been used for fabricating an OLED device with good overall performance.
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Affiliation(s)
| | | | | | - Duckhee Lee
- Authors to whom correspondence should be addressed; E-Mails: (K.Y.C.); (D.L.); Tel.: +82-63-850-6230 (K.Y.C.); Fax: +82-63-841-4893 (K.Y.C.)
| | - Kyu Yun Chai
- Authors to whom correspondence should be addressed; E-Mails: (K.Y.C.); (D.L.); Tel.: +82-63-850-6230 (K.Y.C.); Fax: +82-63-841-4893 (K.Y.C.)
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Nguyen QPB, Kim TH. Non-cross-linked polystyrene-supported 2-imidazolidinone chiral auxiliary: synthesis and application in asymmetric alkylation reactions. Beilstein J Org Chem 2013; 9:2113-9. [PMID: 24204423 PMCID: PMC3817508 DOI: 10.3762/bjoc.9.248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 09/21/2013] [Indexed: 11/23/2022] Open
Abstract
Asymmetric alkylation reactions using non-cross-linked polystyrene (NCPS)-supported 2-imidazolidinone chiral auxiliaries were successfully investigated with excellent diastereocontrol (>99% de). The recovery and the recycling of this soluble polymer-supported chiral auxiliary were achieved in order to produce highly optical pure carboxylic acids.
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Affiliation(s)
- Quynh Pham Bao Nguyen
- School of Applied Chemistry and Center for Functional Nano Fine Chemicals, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Taek Hyeon Kim
- School of Applied Chemistry and Center for Functional Nano Fine Chemicals, Chonnam National University, Gwangju 500-757, Republic of Korea
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Jeong SY, Nguyen QPB, Kim HJ, Kim TH. Double Asymmetric Alkylation Reactions Using C2-symmetric Benzene Based Bis(2-amino-2-oxazolines) Chiral Auxiliaries. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.11.4133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Nguyen QPB, Kang SO, Kim TH. Tetra-butyl-ammonium N-benzoyl-6-nitro-1,3-benzothia-zol-2-aminide. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1970. [PMID: 21588290 PMCID: PMC3007408 DOI: 10.1107/s1600536810026504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Accepted: 07/05/2010] [Indexed: 11/10/2022]
Abstract
In the title salt, C(16)H(36)N(+)·C(14)H(8)N(3)O(3)S(-), the torsion angles within the cation reveal that one butyl group displays an anti conformation and the other three butyl groups show gauche conformations. The anion is almost planar, with a largest deviation of 0.166 (6) Å from the least-squares plane (r.m.s. deviation of fitted atoms = 0.052 Å). In the crystal structure, the component ions inter-act by means of weak inter-molecular C-H⋯O hydrogen bonds.
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Affiliation(s)
- Quynh Pham Bao Nguyen
- Department of Applied Chemistry, Chonnam National University, Gwangju 500-757, Republic of Korea
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Le TN, Nguyen QPB, Kim JN, Kim TH. 5,5-Dimethyl-2-phenylamino-2-oxazoline as an effective chiral auxiliary for asymmetric alkylations. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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