Self-Assembly of ABC Star Triblock Copolymer Thin Films Confined with a Preferential Surface: A Self-Consistent Mean Field Theory

Langmuir ◽  
2010 ◽  
Vol 26 (24) ◽  
pp. 19033-19044 ◽  
Author(s):  
Bo Lin ◽  
Hongdong Zhang ◽  
Feng Qiu ◽  
Yuliang Yang
2008 ◽  
Vol 112 (44) ◽  
pp. 13738-13748 ◽  
Author(s):  
Wenchi Han ◽  
Ping Tang ◽  
Xuan Li ◽  
Feng Qiu ◽  
Hongdong Zhang ◽  
...  

Soft Matter ◽  
2011 ◽  
Vol 7 (21) ◽  
pp. 10076 ◽  
Author(s):  
Bo Lin ◽  
Hongdong Zhang ◽  
Ping Tang ◽  
Feng Qiu ◽  
Yuliang Yang

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
E. L. Hynes ◽  
J. T. Cabral ◽  
A. J. Parnell ◽  
P. Gutfreund ◽  
R. J. L. Welbourn ◽  
...  

Abstract Domain composition and interfacial structure are critical factors in organic photovoltaic performance. Here, we report neutron reflectivity, grazing-incidence X-ray diffraction and atomic force microscopy measurements of polymer/fullerene thin-films to test a hypothesis that these partially miscible blends rapidly develop composition profiles consisting of co-existing phases in liquid-liquid equilibrium. We study a range of polymer molecular weights between 2 and 300 kg mol−1, annealing temperatures between 120 and 170 oC, and timescales up to 10 min, yielding over 50 distinct measurement conditions. Model bilayers of fullerene-derivatives and polystyrene enable a rigorous examination of theoretical predictions of the effect of polymer mass and interaction parameter on the compositions, ϕ, and interfacial width, w, of the coexistent phases. We independently measure ϕ and w and find that both Flory-Huggins mean-field-theory and key aspects of self-consistent-field-theory are remarkably consistent with experiment. Our findings pave the way for predictive composition and interface design in organic photovoltaics based on simple experimental measurements and equilibrium thermodynamic theory.


2002 ◽  
Vol 35 (14) ◽  
pp. 5630-5639 ◽  
Author(s):  
Jeffrey J. Krueger ◽  
Philip P. Simon ◽  
Harry J. Ploehn

2005 ◽  
Vol 34 (7) ◽  
pp. 943-958 ◽  
Author(s):  
Manoj Gopalakrishnan ◽  
Kimberly Forsten-Williams ◽  
Theresa R. Cassino ◽  
Luz Padro ◽  
Thomas E. Ryan ◽  
...  

1997 ◽  
Vol 358 (2) ◽  
pp. 169-173 ◽  
Author(s):  
T.R. Werner ◽  
J. Dobaczewski ◽  
W. Nazarewicz

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