Spectral Stability of Polyfluorene-Based Semiconductors

被引：23
作者：
Liang Jing [1 ,2 ]
Qian Yan [1 ,2 ]
Xie Ling-Hai [1 ,2 ]
Shi Nai-En [1 ,2 ]
Chen Shu-Fen [1 ,2 ]
Deng Xian-Yu [1 ,2 ]
Huang Wei [1 ,2 ]
机构：
[1] Key Lab Organ Elect & Informat Displays, Nanjing 210046, Peoples R China
[2] Nanjing Univ Posts & Telecommun, Inst Adv Mat, Nanjing 210046, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2010年 / 26卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Electroluminescent; Conjugated polymer; Polyfluorene; Low-energy emission band; Spectrum stability; Blue light-emitting semiconductor; LIGHT-EMITTING-DIODES; PERIPHERAL CARBAZOLE GROUPS; COIL BLOCK-COPOLYMERS; GREEN EMISSION; BLUE EMISSION; OPTICAL-PROPERTIES; CONJUGATED POLYMERS; KETO DEFECT; DEVICE PERFORMANCE; EXCIMER FORMATION;
D O I：
10.3866/PKU.WHXB20100415
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The physical and chemical properties of organic semiconductors play key roles in the performance of optoelectronic devices. The manipulation of these properties offers research opportunities and challenges in physical chemistry. The spectral stability and the origin of the low-energy emission band (LEEB) in polyfluorenes-based blue light-emitting diodes have received much attention over the past few decades In this review, we categorized various LEEB phenomena according to characterization and related mechanisms, including inter-chain aggregates and/or excimers, on-chain ketone defect emissions, interchain ketone-based excimers, and hydroxy-terminated oxidation on the interface of devices. Recent advances in highly stable blue light-emitting polyfluorenes are categorically summarized This review highlighted the contributions of the steric hindrance effects of various nonplanar bulky groups, molecular conformations and topologies of chains and antioxidant hindered amine light stabilizers (HALS), together with physical blending as well as interface engineering
引用
收藏
页码：946 / 963
页数：18
相关论文
共 128 条
[1]   Side-Chain Degradation of Ultrapure π-Conjugated Oligomers: Implications for Organic Electronics [J].
Abbel, Robert ;
Woffs, Martin ;
Bovee, Ralf A. A. ;
van Dongen, Joost L. J. ;
Lou, Xianwen ;
Henze, Oliver ;
Feast, W. James ;
Meijer, E. W. ;
Schenning, Albertus P. H. J. .
ADVANCED MATERIALS, 2009, 21 (05) :597-+
[2]   On-chain fluorenone defect emission from single polyfluorene molecules in the absence of intermolecular interactions [J].
Becker, K ;
Lupton, JM ;
Feldmann, J ;
Nehls, BS ;
Galbrecht, F ;
Gao, DQ ;
Scherf, U .
ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (03) :364-370
[3]   Electrical and photoinduced degradation of polyfluorene based films and light-emitting devices [J].
Bliznyuk, VN ;
Carter, SA ;
Scott, JC ;
Klärner, G ;
Miller, RD ;
Miller, DC .
MACROMOLECULES, 1999, 32 (02) :361-369
[4]   Influence of aggregation on the optical properties of a polyfluorene [J].
Bradley, DDC ;
Grell, M ;
Long, X ;
Mellor, H ;
Grice, A ;
Inbasekaran, M ;
Woo, EP .
OPTICAL PROBES OF CONJUGATED POLYMERS, 1997, 3145 :254-259
[5]   Synthesis and electrooptical properties of copolymers derived from phenol-functionalized telechelic oligofluorenes [J].
Burnell, T ;
Cella, JA ;
Donahue, P ;
Duggal, A ;
Early, T ;
Heller, CM ;
Liu, J ;
Shiang, J ;
Simon, D ;
Slowinska, K ;
Sze, M ;
Williams, E .
MACROMOLECULES, 2005, 38 (26) :10667-10677
[6]   LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS [J].
BURROUGHES, JH ;
BRADLEY, DDC ;
BROWN, AR ;
MARKS, RN ;
MACKAY, K ;
FRIEND, RH ;
BURN, PL ;
HOLMES, AB .
NATURE, 1990, 347 (6293) :539-541
[7]   Cyclodextrin-threaded conjugated polyrotaxanes as insulated molecular wires with reduced interstrand interactions [J].
Cacialli, F ;
Wilson, JS ;
Michels, JJ ;
Daniel, C ;
Silva, C ;
Friend, RH ;
Severin, N ;
Samorì, P ;
Rabe, JP ;
O'Connell, MJ ;
Taylor, PN ;
Anderson, HL .
NATURE MATERIALS, 2002, 1 (03) :160-164
[8]   Poly(2,7-dibenzosilole): A blue light emitting polymer [J].
Chan, KL ;
McKiernan, MJ ;
Towns, CR ;
Holmes, AB .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (21) :7662-7663
[9]   A general strategy for the facile synthesis of 2,7-dibromo-9-heterofluorenes [J].
Chen, RF ;
Fan, QL ;
Zheng, C ;
Huang, W .
ORGANIC LETTERS, 2006, 8 (02) :203-205
[10]   Molecular packing in crystalline poly(9,9-di-n-octyl-2,7-fluorlene) [J].
Chen, SH ;
Chou, HL ;
Su, AC ;
Chen, SA .
MACROMOLECULES, 2004, 37 (18) :6833-6838
12345678910