本文主要研究内容
作者郑奕奕(2019)在《新型近红外磷光铱配合物的合成及其光电性能的研究》一文中研究指出:铱配合物具有相对较高的量子效率,且由于其独特的八面体构型和微秒级(0?1.0?s)磷光寿命而降低分子聚集和三线态激子湮灭的几率,能有效减轻器件的效率滚降。为了实现铱配合物的近红外发光,需选择共轭性强的配体以降低能带间隙。本论文基于氮杂环主配体及溴基或烯烃功能化的辅助配体合成得到近红外发光的四种新型铱配合物,且铱配合物的溴基或烯烃功能化为后续进一步共价键合于有机大分子的新型聚合物类近红外发光材料打下了基础。此外,就铱配合物结构表征的基础上还研究了其光电性能。主要内容如下:(1)以氮杂环Hiqbt(1-(benzo[b]thiophen-2-yl)isoquinoline)作为主配体,Brppy(2-(4-bromophenyl)pyridine)作为辅配体,合成得到小分子铱配合物[Ir(iqbt)2(Brppy)];以Hdpbq(2,3-diphenylbenzo[g]quinoxaline)为主配体,溴代席呋碱配体HL1((E)-4-bromo-2-methoxy-6-((phenylimino)methyl)phenol)作为辅配体,合成得到铱配合物[Ir(dpbq)2(L1)];通过核磁氢谱(1H NMR)、红外(FT-IR)和元素分析(EA)等手段进行结构表征,并测试其光物理性质。结果表明:铱配合物[Ir(iqbt)2(Brppy)]的最大发射峰位于692 nm,荧光寿命为0.476μs,量子效率为0.027;铱配合物[Ir(dpbq)2(L1)]的最大发射峰位于772 nm,荧光寿命为0.111μs,量子产率为0.007。(2)以Hdpbq作为主配体,溴代席呋碱配体HL2((E)-4-bromo-2-((phenylimi-no)methyl)phenol)作为辅配体,合成得到铱配合物[Ir(dpbq)2(L2)];主配体不变,辅配体改变为烯烃功能化4-VB-HPLP((E)-4-(4-vinylbenzene)-2-((phenylimino)methyl)phenol),合成得到铱配合物[Ir(dpbq)2(4-VB-PLP)];通过1H NMR、X-射线单晶衍射(XRD)、FT-IR、EA等手段进行结构表征,同时测试其光物理性质。结果表明:铱配合物[Ir(dpbq)2(L2)]的最大发射峰位于776 nm,荧光寿命为0.146μs,量子产率为0.012;铱配合物[Ir(dpbq)2(4-VB-PLP)]的最大发射峰位于797 nm,荧光寿命为0.110μs,量子产率为0.005。(3)以铱配合物[Ir(iqbt)2(Brppy)]作为发光材料,掺杂于PVK(聚N-乙烯咔唑)和OXD-7(1-3-双[(4-叔丁苯基)-1,3,4,-恶二唑基]亚苯基),制备得到近红外聚合物发光二极管:ITO/PEDOT:PSS(40 nm)/PVK(65%):OXD-7(30%):[Ir(iqbt)2(Brppy)](5%,30 mg/mL)(120 nm)/LiF(1 nm)/Al(100 nm);增加电子传输层TmPyPB(1,3,5-三[(3-吡啶基)-3-苯基])优化后的器件结构为:ITO/PEDOT:PSS(40 nm)/PVK(65%):OXD-7(30%):[Ir(iqbt)2(Brppy)](5%,30 mg/mL)(120 nm)/TmPyPB(15 nm)/LiF(1 nm)/Al(100 nm)。优化前后的电致发光性能对比发现:电致发射峰均在692 nm,但增加电子传输层TmPyPB之后的优化器件的外量子效率较明显增加(最大外量子效率(EQEmax)达到1.34%)。
Abstract
yi pei ge wu ju you xiang dui jiao gao de liang zi xiao lv ,ju you yu ji du te de ba mian ti gou xing he wei miao ji (0?1.0?s)lin guang shou ming er jiang di fen zi ju ji he san xian tai ji zi yan mie de ji lv ,neng you xiao jian qing qi jian de xiao lv gun jiang 。wei le shi xian yi pei ge wu de jin gong wai fa guang ,xu shua ze gong e xing jiang de pei ti yi jiang di neng dai jian xi 。ben lun wen ji yu dan za huan zhu pei ti ji xiu ji huo xi ting gong neng hua de fu zhu pei ti ge cheng de dao jin gong wai fa guang de si chong xin xing yi pei ge wu ,ju yi pei ge wu de xiu ji huo xi ting gong neng hua wei hou xu jin yi bu gong jia jian ge yu you ji da fen zi de xin xing ju ge wu lei jin gong wai fa guang cai liao da xia le ji chu 。ci wai ,jiu yi pei ge wu jie gou biao zheng de ji chu shang hai yan jiu le ji guang dian xing neng 。zhu yao nei rong ru xia :(1)yi dan za huan Hiqbt(1-(benzo[b]thiophen-2-yl)isoquinoline)zuo wei zhu pei ti ,Brppy(2-(4-bromophenyl)pyridine)zuo wei fu pei ti ,ge cheng de dao xiao fen zi yi pei ge wu [Ir(iqbt)2(Brppy)];yi Hdpbq(2,3-diphenylbenzo[g]quinoxaline)wei zhu pei ti ,xiu dai xi fu jian pei ti HL1((E)-4-bromo-2-methoxy-6-((phenylimino)methyl)phenol)zuo wei fu pei ti ,ge cheng de dao yi pei ge wu [Ir(dpbq)2(L1)];tong guo he ci qing pu (1H NMR)、gong wai (FT-IR)he yuan su fen xi (EA)deng shou duan jin hang jie gou biao zheng ,bing ce shi ji guang wu li xing zhi 。jie guo biao ming :yi pei ge wu [Ir(iqbt)2(Brppy)]de zui da fa she feng wei yu 692 nm,ying guang shou ming wei 0.476μs,liang zi xiao lv wei 0.027;yi pei ge wu [Ir(dpbq)2(L1)]de zui da fa she feng wei yu 772 nm,ying guang shou ming wei 0.111μs,liang zi chan lv wei 0.007。(2)yi Hdpbqzuo wei zhu pei ti ,xiu dai xi fu jian pei ti HL2((E)-4-bromo-2-((phenylimi-no)methyl)phenol)zuo wei fu pei ti ,ge cheng de dao yi pei ge wu [Ir(dpbq)2(L2)];zhu pei ti bu bian ,fu pei ti gai bian wei xi ting gong neng hua 4-VB-HPLP((E)-4-(4-vinylbenzene)-2-((phenylimino)methyl)phenol),ge cheng de dao yi pei ge wu [Ir(dpbq)2(4-VB-PLP)];tong guo 1H NMR、X-she xian chan jing yan she (XRD)、FT-IR、EAdeng shou duan jin hang jie gou biao zheng ,tong shi ce shi ji guang wu li xing zhi 。jie guo biao ming :yi pei ge wu [Ir(dpbq)2(L2)]de zui da fa she feng wei yu 776 nm,ying guang shou ming wei 0.146μs,liang zi chan lv wei 0.012;yi pei ge wu [Ir(dpbq)2(4-VB-PLP)]de zui da fa she feng wei yu 797 nm,ying guang shou ming wei 0.110μs,liang zi chan lv wei 0.005。(3)yi yi pei ge wu [Ir(iqbt)2(Brppy)]zuo wei fa guang cai liao ,can za yu PVK(ju N-yi xi ka zuo )he OXD-7(1-3-shuang [(4-shu ding ben ji )-1,3,4,-e er zuo ji ]ya ben ji ),zhi bei de dao jin gong wai ju ge wu fa guang er ji guan :ITO/PEDOT:PSS(40 nm)/PVK(65%):OXD-7(30%):[Ir(iqbt)2(Brppy)](5%,30 mg/mL)(120 nm)/LiF(1 nm)/Al(100 nm);zeng jia dian zi chuan shu ceng TmPyPB(1,3,5-san [(3-bi ding ji )-3-ben ji ])you hua hou de qi jian jie gou wei :ITO/PEDOT:PSS(40 nm)/PVK(65%):OXD-7(30%):[Ir(iqbt)2(Brppy)](5%,30 mg/mL)(120 nm)/TmPyPB(15 nm)/LiF(1 nm)/Al(100 nm)。you hua qian hou de dian zhi fa guang xing neng dui bi fa xian :dian zhi fa she feng jun zai 692 nm,dan zeng jia dian zi chuan shu ceng TmPyPBzhi hou de you hua qi jian de wai liang zi xiao lv jiao ming xian zeng jia (zui da wai liang zi xiao lv (EQEmax)da dao 1.34%)。
论文参考文献
论文详细介绍
论文作者分别是来自西北大学的郑奕奕,发表于刊物西北大学2019-10-11论文,是一篇关于铱配合物论文,溴代及烯烃功能化论文,近红外发光论文,电致发光器件论文,西北大学2019-10-11论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自西北大学2019-10-11论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。
标签:铱配合物论文; 溴代及烯烃功能化论文; 近红外发光论文; 电致发光器件论文; 西北大学2019-10-11论文;