Transparent and conductive metallic electrodes fabricated by using nanosphere lithography

被引:51
作者
Ho, Yu-Hsuan [1 ,3 ]
Chen, Kuan-Yu [2 ]
Liu, Shun-Wei [2 ,3 ]
Chang, Yung-Ting [2 ,3 ]
Huang, Ding-Wei [2 ]
Wei, Pei-Kuen [1 ]
机构
[1] Acad Sinica, Res Ctr Appl Sci, Taipei 11572, Taiwan
[2] Acad Sinica, Inst Chem, Taipei 11529, Taiwan
[3] Natl Taiwan Univ, Dept Elect Engn, Grad Inst Photon & Optoelect, Taipei 10617, Taiwan
关键词
Nanosphere lithography; Transparent anode; Organic light-emitting diodes; Extraction efficiency enhancement; LIGHT-EMITTING-DIODES; ZINC-OXIDE FILMS; ARRAYS; TRANSMISSION; ANODES; CARBON;
D O I
10.1016/j.orgel.2011.03.019
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Nanosphere lithography is used to pattern metallic thin films to form hexagonal nanohole arrays with both high conductivity and good transparency. We fabricated a silver thin film with a transparency of up to 85% and a sheet resistance lower than 35 Omega/square, which is comparable to the commercial ITO electrode. The nanohole array not only increased the transparency but also helped extracting the guided light trapped in organic layers. Compared to the reference device with ITO anodes, Alq(3)-based organic light-emitting devices with the silver nanohole arrays reduced the turn-on voltage by 0.82 V and improved the current efficiency by up to 68.8% due to extraction enhancement. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:961 / 965
页数:5
相关论文
共 20 条
[1]  
Britto PJ, 1999, ADV MATER, V11, P154, DOI 10.1002/(SICI)1521-4095(199902)11:2<154::AID-ADMA154>3.0.CO
[2]  
2-B
[3]   Polymeric anodes for improved polymer light-emitting diode performance [J].
Carter, SA ;
Angelopoulos, M ;
Karg, S ;
Brock, PJ ;
Scott, JC .
APPLIED PHYSICS LETTERS, 1997, 70 (16) :2067-2069
[4]   Surface plasmon generation and light transmission by isolated nanoholes and arrays of nanoholes in thin metal films [J].
Chang, SH ;
Gray, SK ;
Schatz, GC .
OPTICS EXPRESS, 2005, 13 (08) :3150-3165
[5]   Enhanced light extraction efficiency from organic light emitting diodes by insertion of a two-dimensional photonic crystal structure [J].
Do, YR ;
Kim, YC ;
Song, YW ;
Lee, YH .
JOURNAL OF APPLIED PHYSICS, 2004, 96 (12) :7629-7636
[6]   Size effects in the electrical resistivity of polycrystalline nanowires [J].
Durkan, C ;
Welland, ME .
PHYSICAL REVIEW B, 2000, 61 (20) :14215-14218
[7]   Extraordinary optical transmission through sub-wavelength hole arrays [J].
Ebbesen, TW ;
Lezec, HJ ;
Ghaemi, HF ;
Thio, T ;
Wolff, PA .
NATURE, 1998, 391 (6668) :667-669
[8]   Transparent conducting oxides for photovoltaics [J].
Fortunato, Elvira ;
Ginley, David ;
Hosono, Hideo ;
Paine, David C. .
MRS BULLETIN, 2007, 32 (03) :242-247
[9]   ZnO-based transparent thin-film transistors [J].
Hoffman, RL ;
Norris, BJ ;
Wager, JF .
APPLIED PHYSICS LETTERS, 2003, 82 (05) :733-735
[10]   Extraction enhancement in organic light emitting devices by using metallic nanowire arrays [J].
Hsu, Shen-Yu ;
Lee, Ming-Chang ;
Lee, Kuang-Li ;
Wei, Pei-Kuen .
APPLIED PHYSICS LETTERS, 2008, 92 (01)