Introduction of oxygen into organic thin films with the aim of suppressing singlet-triplet annihilation

被引：14

作者：

Inoue, Munetomo ^{[1
,2
]}

Matsushima, Toshinori ^{[2
,3
]}

Nakanotani, Hajime ^{[2
,3
]}

Adachi, Chihaya ^{[2
,3
,4
]}

机构：

[1] Dept Appl Chem, Nishi Ku, Fukuoka 8190395, Japan

[2] Kyushu Univ, Ctr Organ Photon & Elect Res, Nishi Ku, Fukuoka 8190395, Japan

[3] Japan Sci & Technol Agcy JST, ERATO, Adachi Mol Exciton Engn Project, Nishi Ku, Fukuoka 8190395, Japan

[4] Kyushu Univ, Int Inst Carbon Neutral Energy Res, Nishi Ku, Fukuoka 8190395, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2015年 / 624卷

基金：

日本学术振兴会;

关键词：

ROLL-OFF; STATE; EMISSION; ELECTROLUMINESCENCE; POLYMERS; BENZENE; MODEL;

D O I：

10.1016/j.cplett.2015.02.010

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：

Efficient introduction of oxygen into a solid-state organic film is demonstrated by applying a high oxygen pressure of 200 MPa to the film. The oxygen-introduced film shows strong suppression of singlet-triplet annihilation (STA) because triplet excitons are quenched by oxygen introduced inside the film. It is demonstrated that oxygen molecules are uniformly distributed in the film and that oxygen molecules are left in the film to some extent when the film is in a vacuum. The concentration of oxygen inside the film is calculated to be a very high value on the order of 4.4 x 10(20) cm(-3). (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：43 / 46

页数：4

共 31 条

[1] 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

[2] Characterization of the triplet state of tris(8-hydroxyquinoline)aluminium(III) in benzene solution [J].

Burrows, HD ;

Fernandes, M ;

de Melo, JS ;

Monkman, AP ;

Navaratnam, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (50) :15310-15311

[3] Recent advances in solid-state organic lasers [J].

Chenais, Sebastien ;

Forget, Sebastien .

POLYMER INTERNATIONAL, 2012, 61 (03) :390-406

[4] Application of a Perrin-like Kinetics Model to the Photochemical Degradation of Polymers [J].

Daglen, Bevin C. ;

Tyler, David R. .

MACROMOLECULES, 2008, 41 (24) :9525-9531

[5] Electroluminescence in conjugated polymers [J].

Friend, RH ;

Gymer, RW ;

Holmes, AB ;

Burroughes, JH ;

Marks, RN ;

Taliani, C ;

Bradley, DDC ;

Dos Santos, DA ;

Brédas, JL ;

Lögdlund, M ;

Salaneck, WR .

NATURE, 1999, 397 (6715) :121-128

[6] Temporal response of optically pumped organic semiconductor lasers and its implication for reaching threshold under electrical excitation [J].

Giebink, N. C. ;

Forrest, S. R. .

PHYSICAL REVIEW B, 2009, 79 (07)

[7] Semiconducting polymers: A new class of solid-state laser materials [J].

Hide, F ;

DiazGarcia, MA ;

Schwartz, BJ ;

Andersson, MR ;

Pei, QB ;

Heeger, AJ .

SCIENCE, 1996, 273 (5283) :1833-1836

[8] Laser action in poly(m-phenylenevinylene-co-2,5-dioctoxy-p-phenylenevinylene) [J].

Holzer, W ;

Penzkofer, A ;

Gong, SH ;

Bleyer, A ;

Bradley, DDC .

ADVANCED MATERIALS, 1996, 8 (12) :974-978

[9] Reduced amplified spontaneous emission threshold in organic semiconductor laser structure with relaxed roll-off characteristics under high current densities [J].

Inoue, Munetomo ;

Goushi, Kenichi ;

Endo, Kuniaki ;

Nomura, Hiroko ;

Adachi, Chihaya .

JOURNAL OF LUMINESCENCE, 2013, 143 :754-758

[10] Improved Density and Mechanical Properties of a Porous Metal-Free Phthalocyanine Thin Film Isotropically Pressed with Pressure Exceeding the Yield Strength [J].

Kanari, Moriyasu ;

Wakamatsu, Takashi ;

Fatt, Randy Gui Guan ;

Ihara, Ikuo .

APPLIED PHYSICS EXPRESS, 2011, 4 (11)

← 1 2 3 4 →