Controlling the Orientation of Cylinder Forming Block Copolymers - - PowerPoint PPT Presentation

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Controlling the Orientation of Cylinder Forming Block Copolymers - - PowerPoint PPT Presentation

Jan 05, 2024 296 likes •400 views

Controlling the Orientation of Cylinder Forming Block Copolymers David Statti, Matthew Hammond (Mentor), Professor Edward J. Kramer Department of Materials, UCSB Funded by the National Science Foundation, Department of Materials Research

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SLIDE 1

Controlling the Orientation of Cylinder Forming Block Copolymers

David Statti, Matthew Hammond (Mentor), Professor Edward J. Kramer

Department of Materials, UCSB Funded by the National Science Foundation, Department

  • f Materials Research
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SLIDE 2

Cylinder Forming Block Copolymers

PS Polystyrene (A) 185 monomers AAAAAAAA-BBBB

  • Cylinders (PVP),

surrounded by PS.

PVP Poly(2Vinylpyridine) (B) 63 monomers

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SLIDE 3

Silicon Substrate

Island and Hole Formation

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SLIDE 4

Cross Section of Patterned Silicon Substrate

Silicon Substrate

Layer of Copolymer SiO2 Mesa Mesa Mesa Well Well Well Mesa Mesa

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SLIDE 5

Atomic force Microscopy (AFM)

Detector Laser Cantilever

Silicon substrate

  • Cantilever taps on sample surface.
  • Laser deflects off cantilever and into detector,

measuring changes in amplitude.

  • Computer translates into topographical image.
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SLIDE 6

1 2 3 4 5 6 7 8 8 minutes 21 hours 195 minutes 67.5 hours

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SLIDE 7

Cylinder Forming Block Copolymer

1 2 3 4 5 6 7 8

MH10 Polymer (Hole Area)

  • 2

2 4 6 8 10 12 1000 2000 3000 4000 5000 Time (minutes) A re a (m ic ro n s ^ 2 ) 1 2 3 4 5 6 7 8

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SLIDE 8

µm

mesa well mesa Cylinders Aligning in Well