Thermal annealing effect on light emission profile of polyfluorenes containing double bond subunit

被引：11

作者：

Mucur, Selin Piravadili ^{[1
]}

Kacar, Rifat ^{[1
,2
]}

Meric, Cagla ^{[3
]}

Koyuncu, Sermet ^{[4
,5
]}

机构：

[1] Sci & Technol Res Council Turkey TUBITAK, Marmara Res Ctr MAM, Mat Inst, TR-41470 Gebze, Kocaeli, Turkey

[2] Gebze Tech Univ, Dept Phys, Grad Sch Nat & Appl Sci, TR-41400 Gebze, Kocaeli, Turkey

[3] Canakkale Onsekiz Mart Univ, Fac Arts & Sci, Dept Chem, TR-17100 Canakkale, Turkey

[4] Canakkale Onsekiz Mart Univ, Fac Engn, Dept Chem Engn, TR-17100 Canakkale, Turkey

[5] Canakkale Onsekiz Mart Univ, Dept Energy Resources & Management, TR-17020 Canakkale, Turkey

来源：

ORGANIC ELECTRONICS | 2017年 / 50卷

关键词：

Organic light-emitting diodes (OLEDs); Color tuning; Polyfluorene; Double bond subunit effect; Thermal annealing; EMITTING-DIODES; CONJUGATED POLYMERS; DEVICE PERFORMANCE; CLICK CHEMISTRY; BAND-GAP; BLUE; FILMS; PHOTOLUMINESCENCE; DERIVATIVES; GREEN;

D O I：

10.1016/j.orgel.2017.07.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We presented comprehensive photoluminescence (PL) and electroluminescence (EL) studies of polyfluorene based electroactive polymer (SF4) containing double bond side chain to investigate its characteristics as a function of temperature. Annealing treatment was conducted for thin films on glass substrates and also for the organic light emitting diodes (OLEDs) at different temperatures. While polymer thin film coated on to glass substrate annealed at < 150 degrees C exhibited green color emission, OLEDs that annealed at > 150 degrees C shifted white color emission. It was implying that the emission was taking place interchain interaction. Phase modulation at higher annealing temperatures was occurred on the thin film as shown AFM images. Further, annealed polymer film with 120 degrees C exhibited the best performance in OLED device with luminance 5241 cd m (-2), a maximum efficiency 1.54 cd A (-1) and external quantum efficiency 0.54% compared to other polymer films annealed with different temperatures. (C) 2017 Elsevier B. V. All rights reserved.

引用

页码：55 / 62

页数：8

共 34 条

[1] Electrical and photoinduced degradation of polyfluorene based films and light-emitting devices
Bliznyuk, VN
Carter, SA
Scott, JC
Klärner, G
Miller, RD
Miller, DC
[J]. MACROMOLECULES, 1999, 32 (02) : 361 - 369
[2] Microcavity devices based on a ladder-type poly(p-phenylene) emitting blue, green, and red light
Cimrova, V
Scherf, U
Neher, D
[J]. APPLIED PHYSICS LETTERS, 1996, 69 (05) : 608 - 610
[3] Conwell E, 1997, TRENDS POLYM SCI, V5, P218
[4] Electroluminescent Networks via Photo "Click" Chemistry
Davis, Andrew R.
Maegerlein, Janet A.
Carter, Kenneth R.
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (50) : 20546 - 20551
[5] Attaching perylene dyes to polyfluorene:: Three simple, efficient methods for facile color tuning of light-emitting polymers
Ego, C
Marsitzky, D
Becker, S
Zhang, JY
Grimsdale, AC
Müllen, K
MacKenzie, JD
Silva, C
Friend, RH
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (02) : 437 - 443
[6] Interplay of physical structure and photophysics for a liquid crystalline polyfluorene
Grell, M
Bradley, DDC
Ungar, G
Hill, J
Whitehead, KS
[J]. MACROMOLECULES, 1999, 32 (18) : 5810 - 5817
[7] Effect of thermal annealing on some electrical properties and optical band gap of vacuum evaporated Se65Ga30In5 thin films
Imran, Mousa M. A.
Lafi, Omar A.
Abu-Samak, M.
[J]. VACUUM, 2012, 86 (10) : 1589 - 1594
[8] EXCIMERS AND EXCIPLEXES OF CONJUGATED POLYMERS
JENEKHE, SA
OSAHENI, JA
[J]. SCIENCE, 1994, 265 (5173) : 765 - 768
[9] EXCITED-STATE COMPLEXES OF CONJUGATED POLYMERS
JENEKHE, SA
[J]. ADVANCED MATERIALS, 1995, 7 (03) : 309 - 311
[10] Temperature dependent photoluminescence and electroluminescence properties of polythiophene with hydrogen bonding side chain
Jung, SD
Hwang, DH
Zyung, T
Kim, WH
Chittibabu, KG
Tripathy, SK
[J]. SYNTHETIC METALS, 1998, 98 (02) : 107 - 111

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