Nanorod position and orientation in vertical cylinder block copolymer films

Soft Matter ◽  
2020 ◽  
Vol 16 (12) ◽  
pp. 3005-3014
Author(s):  
Boris Rasin ◽  
Benjamin J. Lindsay ◽  
Xingchen Ye ◽  
Jeffrey S. Meth ◽  
Christopher B. Murray ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Diblock Copolymer ◽  
Vertical Cylinder ◽  
Cylinder Block ◽  
Copolymer Films ◽  
Position And Orientation ◽  
Vertical Cylinders

Nanorods bridge vertical cylinders in vertical cylinder diblock copolymer films.

Phase Transitions in Thin Block Copolymer Films

MRS Bulletin ◽  
2010 ◽  
Vol 35 (6) ◽  
pp. 457-465 ◽  
Author(s):  
Edward J. Kramer
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Block Copolymer ◽  
Diblock Copolymer ◽  
Smectic Liquid Crystals ◽  
Material System ◽  
Thermal Generation ◽  
Copolymer Films ◽  
Bcc Structure ◽  
Line Defects

AbstractDavid Turnbull's experiments and theoretical insights paved the way for much of our modern understanding of phase transitions in materials. In recognition of his contributions, this lecture will concentrate on phase transitions in a material system not considered by Turnbull, thin diblock copolymer films. Well-ordered block copolymer films are attracting increasing interest as we attempt to extend photolithography to smaller dimensions. In the case of diblock copolymer spheres, an ordered monolayer is hexagonal, but the ordered bulk is body-centered cubic (bcc). There is no hexagonal plane in the bcc structure, so a phase transition must occur as n, the number of layers of spheres in the film, increases. How this phase transition occurs with nand how it can be manipulated is the subject of the first part of my presentation. In the second part of the talk, I show that monolayers of diblock copolymer spheres and cylinders undergo order-to-disorder transitions that differ greatly from those of the bulk. These ordered 2D monolayers are susceptible to phonon-generated disorder as well as to thermal generation of defects, such as dislocations, which, while they are line defects in 3D, are point defects in 2D. The results are compared to the theories of melting of 2D crystals (spheres) and of 2D smectic liquid crystals (cylinders), a comparison that will allow us to understand most, but not all, of the features of these order-disorder transitions that occur as the temperature is increased.

scholarly journals Ultra-Fast Vertical Ordering of Lamellar Block Copolymer Films on Unmodified Substrates

2021 ◽  
Vol 54 (3) ◽  
pp. 1564-1573
Author(s):  
Maninderjeet Singh ◽  
Wenjie Wu ◽  
Monali N. Basutkar ◽  
Joseph Strzalka ◽  
Abdullah M. Al-Enizi ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Copolymer Films

Morphology Control in Block Copolymer Films Using Mixed Solvent Vapors

ACS Nano ◽  
2012 ◽  
Vol 6 (9) ◽  
pp. 8052-8059 ◽  
Author(s):  
Kevin W. Gotrik ◽  
Adam F. Hannon ◽  
Jeong Gon Son ◽  
Brent Keller ◽  
Alfredo Alexander-Katz ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Mixed Solvent ◽  
Morphology Control ◽  
Copolymer Films ◽  
Solvent Vapors

Symmetry-breaking in double gyroid block copolymer films by non-affine distortion

2021 ◽  
Vol 23 ◽  
pp. 101006
Author(s):  
Seungyun Jo ◽  
Haedong Park ◽  
Taesuk Jun ◽  
Kwangjin Kim ◽  
Hyunsoo Jung ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Symmetry Breaking ◽  
Copolymer Films ◽  
Double Gyroid

Topological coarsening of symmetric diblock copolymer films: Model 2D systems

1993 ◽  
Vol 71 (11) ◽  
pp. 1716-1719 ◽  
Author(s):  
P. Bassereau ◽  
D. Brodbreck ◽  
T. P. Russell ◽  
H. R. Brown ◽  
K. R. Shull
Keyword(s):  
Diblock Copolymer ◽  
2D Systems ◽  
Copolymer Films

scholarly journals Interference microscopy on thin diblock copolymer films

1990 ◽  
Vol 51 (8) ◽  
pp. 777-786 ◽  
Author(s):  
G. Coulon ◽  
D. Ausserre ◽  
T.P. Russell
Keyword(s):  
Diblock Copolymer ◽  
Interference Microscopy ◽  
Copolymer Films

Ordered Diblock Copolymer Films on Random Copolymer Brushes

1997 ◽  
Vol 30 (22) ◽  
pp. 6810-6813 ◽  
Author(s):  
P. Mansky ◽  
T. P. Russell ◽  
C. J. Hawker ◽  
M. Pitsikalis ◽  
J. Mays
Keyword(s):  
Diblock Copolymer ◽  
Random Copolymer ◽  
Copolymer Films ◽  
Copolymer Brushes
Sign in / Sign up

Export Citation Format

Share Document