新型不对称酞菁的电致发光性质研究  

Electroluminescence Character of Novel Unsymmetry SubstitutedPhthalocyanines

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作  者:夏道成[1,3] 李万程[2] 韩双[1] 程传辉[4] 李泉泉[1] 王进[1] 张伟[1] 李珠[1] 

机构地区:[1]运城学院化学系,山西运城044000 [2]吉林大学集成光电子国家重点实验室,电子科学与工程学院,吉林长春130012 [3]东北师范大学化学学院,吉林长春130012 [4]大连理工大学物理与光电工程学院,辽宁大连116023

出  处:《光谱学与光谱分析》2010年第9期2335-2339,共5页Spectroscopy and Spectral Analysis

基  金:国家自然科学基金项目(60307002和20472014);山西省青年基金项目(2010021010-3);运城学院院级重点项目(975175);东北师范大学校内博士后基金项目(111900026)资助

摘  要:制作了以3种新型不对称酞菁铜为发光层的电致发光器件并研究了其电致发光性质。3种新型不对称酞菁铜为2(3)-(对叔丁基苯氧基)酞菁铜(1),2(3),9(10),16(17)三--(对叔丁基苯氧基)酞菁铜(2)和2(3),16(17)-二-(对叔丁基苯氧基)酞菁铜(3)。其中以(1)和(3)为发光层的器件结构ITO/NPB(40 nm)/Phthalocynine(Pc)(30 nm)/AlQ(43.8 nm)/LiF(0.5 nm)/Al(120 nm)。其中以(2)为发光层的器件结构为:ITO/NPB(30 nm)/Pc(30 nm)/BCP(20 nm)/AlQ(30 nm)/LiF(0.5 nm)/Al(120 nm)。以(1),(2)和(3)为发光层与Q带相关联的发射波长分别出现在869和1 062 nm;1 050和1110 nm;和1 095和1 204 nm。上述发射波长的不同是因为取代基的数目和真空镀膜的分子聚集态不同造成的,所以3种不对称酞菁铜的发射峰值和半峰宽差别较大,而且由此也引起斯托克司位移的不同。The authors for the first time fabricated OLEDs employing novel phthalocynines: 2(3)-(p-tert-butylphenoxy) copper phthalocyanine(1),2(3),16(17)-di(p-tert-butyl-phenoxy) copper phthalocyanine(2)and 2(3),9(10),16(17)-tri(p-tert-butylphenoxy) copper phthalocyanine(3) as light emitting layer,and their electroluminescence character was studied.The final structures of three-layer OLEDs based on copper 2(3)-(p-tert-butylphenoxy) copper phthalocyanine(1)and 2(3),9(10),16(17)-tri(p-tert-butylphenoxy) copper phthalocyanine(3)were ITO/NPB(40 nm)/Pc(30 nm)/AlQ(43.5 nm)/LiF(0.5 nm)/Al(120 nm).The structure of three-layer OLED based on 2(3),9(10),16(17)-tri(p-tert-butylphenoxy) copper phthalocyanine(3) was ITO/NPB(30 nm)/Pc(30 nm) /BCP(20 nm)/AlQ(30 nm)/LiF (0.5 nm)/Al(120 nm).Room-temperature electroluminescence was observed at about 869 nmand 1 062 nm for 2(3)-(p-tert-butylphenoxy) copper phthalocyanine(1);room-temperature electroluminescence of 2(3),16(17)-di(p-tert-butyl-phenoxy) copper phthalocyanine(2) was found at about 1 050 nm and 1 110 nm;and Room-temperature electroluminescence of 2(3),9(10),16(17)-tri(p-tert-butylphenoxy) copper phthalocyanine(3) was studied at about 1 095 and 1 204 nm.The emission wavelengths and the half bandwidths were quite different for the phthalocyanine,which may be due to the differences in the number of substituted and the molecular aggregations in vacuum sublimed films.The difference in Stokes shift relaxation was also induced by the molecular aggregations.

关 键 词:新型 酞菁 电致发光 性质 

分 类 号:O482.3[理学—固体物理]

 

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