Multilayer formation in spin-coated thin films of low-bandgap polyfluorene: PCBM blends

被引：120

作者：

Björström, CM

Bernasik, A

Rysz, J

Budkowski, A

Nilsson, S

Svensson, M

Andersson, MR

Magnusson, KO

Moons, E ^{[1
]}

机构：

[1] Karlstad Univ, Dept Phys, SE-65188 Karlstad, Sweden

[2] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland

[3] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

[4] Chalmers Univ Technol, Dept Mat & Surface Chem Polymer Technol, SE-41296 Gothenburg, Sweden

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2005年 / 17卷 / 50期

关键词：

D O I：

10.1088/0953-8984/17/50/L01

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Blends of the low-bandgap polymer poly [(9,9-dioctylfluorenyl-2,7-diyl)-co-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole] (APFO-3) and the fullerene derivative [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) were spin-coated from chloroform solution into thin films, which were examined with dynamic secondary ion mass spectrometry. For blends with high PCBM content, the depth profiles show composition waves that were caused by surface-directed phase separation during spin-coating. The formation of such multilayer structures by spontaneous self-stratification is likely to have implications for optimization strategies for the performance of organic solar cells.

引用

页码：L529 / L534

页数：6

共 37 条

[1] Vertically segregated polymer-blend photovoltaic thin-film structures through surface-mediated solution processing
Arias, AC
Corcoran, N
Banach, M
Friend, RH
MacKenzie, JD
Huck, WTS
[J]. APPLIED PHYSICS LETTERS, 2002, 80 (10) : 1695 - 1697
[2] Lamellar structures formed in spin-cast blends of insulating and conducting polymers
Bernasik, A
Wlodarczyk-Miskiewicz, J
Luzny, W
Kowalski, K
Raczkowska, J
Rysz, J
Budkowski, A
[J]. SYNTHETIC METALS, 2004, 144 (03) : 253 - 257
[3] Evolution of 3D structures in a phase-separating polymer blend film confined by symmetric flat walls
Bernasik, A
Rysz, J
Budkowski, A
Brenn, R
Kowalski, K
Camra, J
Jedlinski, J
[J]. EUROPEAN PHYSICAL JOURNAL E, 2003, 12 (02) : 211 - 214
[4] Bernasik A, 2001, MACROMOL RAPID COMM, V22, P829, DOI 10.1002/1521-3927(20010701)22:11<829::AID-MARC829>3.0.CO
[5] 2-8
[6] Bernasik A, 1997, ECASIA 97: 7TH EUROPEAN CONFERENCE ON APPLICATIONS OF SURFACE AND INTERFACE ANALYSIS, P775
[7] Control of phase separation in blends of polyfluorene (co)polymers and the C60-derivative PCBM
Björström, CM
Magnusson, KO
Moons, E
[J]. SYNTHETIC METALS, 2005, 152 (1-3) : 109 - 112
[8] Substrate-determined shape of free surface profiles in spin-cast polymer blend films
Budkowski, A
Bernasik, A
Cyganik, P
Raczkowska, J
Penc, B
Bergues, B
Kowalski, K
Rysz, J
Janik, J
[J]. MACROMOLECULES, 2003, 36 (11) : 4060 - 4067
[9] Characterization of poly(p-phenylene vinylene)/methanofullerene blends of polymer solar cells by time-of-flight secondary ion mass spectrometry
Bulle-Lieuwma, CWT
van Duren, JKJ
Yang, X
Loos, J
Sieval, AB
Hummelen, JC
Janssen, RAJ
[J]. APPLIED SURFACE SCIENCE, 2004, 231 : 274 - 277
[10] Correlating structure with fluorescence emission in phase-separated conjugated-polymer blends
Chappell, J
Lidzey, DG
Jukes, PC
Higgins, AM
Thompson, RL
O'Connor, S
Grizzi, I
Fletcher, R
O'Brien, J
Geoghegan, M
Jones, RAL
[J]. NATURE MATERIALS, 2003, 2 (09) : 616 - 621

← 1 2 3 4 →